About this manual
Chapter 1. Read this first: Important safety information
Chapter 2. Product overview
Chapter 3. Using your computer
Chapter 4. You and your computer
Chapter 5. Security
Chapter 6. Advanced configuration
Chapter 7. Troubleshooting, diagnostics, and recovery
Chapter 8. Service checkout and symptom-to-FRU index
- Service checkout
  - Problem determination tips
- Symptom-to-FRU index
Chapter 9. Hardware removal and installation
Chapter 10. Getting information, help, and service
- Information resources
- Help and service
Appendix A. System memory speed
Appendix B. Supplemental information about the Ubuntu operating system
Appendix C. Regulatory and TCO Certified information of countries and regions
Appendix D. WEEE and recycling information of countries and regions
Appendix E. Restriction of Hazardous Substances (RoHS) Directive of countries and regions
Appendix F. ENERGY STAR model information
Appendix G. Notices
Appendix H. Trademarks

Lenovo P520 User Manual

Displayed below is the user manual for P520 by Lenovo which is a product in the PCs/Workstations category. This manual has pages.

Related Manuals

Lenovo P520c Manual

P520 Hardware Maintenance Manual

Machine Types: 30BE, 30BF, 30BQ, and 30DC

Note: Before using this information and the product it supports, be sure to read and understand the Chapter

1 “Read this first: Important safety information” on page 1 and Appendix G “Notices” on page 221.

Fifth Edition (June 2021)

LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services

Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-

35F-05925.

Contents

About this manual . . . . . . . . . . . . v

Chapter 1. Read this first: Important

safety information . . . . . . . . . . . . 1

Power cords and power adapters . . . . . . . . . 1

General safety . . . . . . . . . . . . . . . . 1

Electrical safety . . . . . . . . . . . . . . . . 2

Safety inspection guide . . . . . . . . . . . . . 3

Handling electrostatic discharge-sensitive

devices . . . . . . . . . . . . . . . . . . . 4

Grounding requirements . . . . . . . . . . . . 5

Safety notices (multi-lingual translations) . . . . . . 5

Chapter 2. Product overview . . . . . 29

Hardware locations . . . . . . . . . . . . . 29

Front view . . . . . . . . . . . . . . . 30

Rear view . . . . . . . . . . . . . . . 32

Computer components . . . . . . . . . . 35

Major FRUs and CRUs . . . . . . . . . . 35

Parts on the system board . . . . . . . . . 42

Internal storage drives . . . . . . . . . . 44

Machine type and model label . . . . . . . 46

Computer features. . . . . . . . . . . . . . 46

Computer specifications . . . . . . . . . . . 49

Programs . . . . . . . . . . . . . . . . . 50

Accessing a program on your computer . . . 50

An introduction to Lenovo programs . . . . . 50

Chapter 3. Using your computer . . . 53

Registering your computer . . . . . . . . . . 53

Setting the computer volume . . . . . . . . . 53

Using a disc . . . . . . . . . . . . . . . . 53

Guidelines about using the optical drive . . . 53

Handling and storing a disc . . . . . . . . 53

Playing and removing a disc . . . . . . . . 54

Recording a disc . . . . . . . . . . . . 54

Connecting to a network . . . . . . . . . . . 55

Chapter 4. You and your computer . . 57

Arranging your workspace . . . . . . . . . . 57

Glare and lighting . . . . . . . . . . . . 57

Air circulation . . . . . . . . . . . . . . 57

Electrical outlet locations and cable lengths . . 57

Comfort . . . . . . . . . . . . . . . . 57

Accessibility information . . . . . . . . . . . 58

Cleaning your computer . . . . . . . . . . . 58

Maintenance . . . . . . . . . . . . . . . . 59

Basic maintenance tips . . . . . . . . . . 59

Good maintenance practices . . . . . . . . 59

Keeping your computer current . . . . . . . 59

Moving your computer . . . . . . . . . . . . 60

Chapter 5. Security . . . . . . . . . . 61

Locking your computer . . . . . . . . . . . . 61

Locking the computer cover . . . . . . . . 61

Attaching a Kensington-style cable lock . . . 62

Viewing and changing security settings in the

Setup Utility program . . . . . . . . . . . . 62

Using passwords and Windows accounts . . . . 62

Using fingerprint authentication . . . . . . . . 63

Using the cover presence switch . . . . . . . . 63

Using firewalls . . . . . . . . . . . . . . . 63

Protecting data against viruses . . . . . . . . . 64

Using the Smart USB Protection function . . . . . 64

Computrace Agent software embedded in

firmware. . . . . . . . . . . . . . . . . . 64

Trusted Platform Module (TPM). . . . . . . . . 64

Intel BIOS guard . . . . . . . . . . . . . . 65

Chapter 6. Advanced

configuration. . . . . . . . . . . . . . 67

Using the Setup Utility program . . . . . . . . 67

Starting the Setup Utility program . . . . . . 67

Changing the display mode of the Setup Utility

program . . . . . . . . . . . . . . . . 67

Changing the display language of the Setup

Utility program . . . . . . . . . . . . . 67

Enabling or disabling a device . . . . . . . 68

Enabling or disabling the automatic power-on

of your computer . . . . . . . . . . . . 68

Enabling or disabling the ErP LPS compliance

mode . . . . . . . . . . . . . . . . . 68

Enabling or disabling the configuration change

detection . . . . . . . . . . . . . . . 69

Changing the BIOS settings before installing a

new operating system . . . . . . . . . . 69

Using BIOS passwords . . . . . . . . . . 69

Selecting a startup device . . . . . . . . . 71

Changing the fan speed level . . . . . . . . 72

Exiting the Setup Utility program . . . . . . 72

Updating and recovering the BIOS . . . . . . . 72

BIOS level . . . . . . . . . . . . . . . 73

Configuring RAID . . . . . . . . . . . . . . 74

An Introduction to RAID . . . . . . . . . . 74

Configuring RAID with Intel RSTe . . . . . . 74

Configuring RAID with AVAGO MegaRAID

Configuration Utility . . . . . . . . . . . 76

Configuring RAID with Intel Virtual RAID on

CPU . . . . . . . . . . . . . . . . . 78

Chapter 7. Troubleshooting,

diagnostics, and recovery . . . . . . . 81

Basic procedure for resolving computer

problems . . . . . . . . . . . . . . . . . 81

Troubleshooting . . . . . . . . . . . . . . 81

Startup problems . . . . . . . . . . . . 81

Audio problems . . . . . . . . . . . . . 82

CD or DVD problems . . . . . . . . . . . 83

Intermittent problems. . . . . . . . . . . 84

Storage drive problems . . . . . . . . . . 84

Ethernet LAN problems . . . . . . . . . . 84

Wireless LAN problem . . . . . . . . . . 85

Bluetooth problems . . . . . . . . . . . 86

Performance problems . . . . . . . . . . 86

Serial connector problem . . . . . . . . . 87

USB device problems . . . . . . . . . . 88

Software and driver problems . . . . . . . 88

Lenovo diagnostic tools . . . . . . . . . . . 88

Recovery information . . . . . . . . . . . . 89

Chapter 8. Service checkout and

symptom-to-FRU index . . . . . . . . 91

Service checkout . . . . . . . . . . . . . . 91

Problem determination tips . . . . . . . . 91

Symptom-to-FRU index . . . . . . . . . . . 92

Hard disk drive boot error . . . . . . . . . 92

Power supply problems . . . . . . . . . . 93

Beep symptoms . . . . . . . . . . . . . 93

POST error codes . . . . . . . . . . . . 94

Miscellaneous error conditions . . . . . . . 95

Undetermined problems . . . . . . . . . 97

Chapter 9. Hardware removal and

installation . . . . . . . . . . . . . . . 99

Handling static-sensitive devices . . . . . . . . 99

Preparing your computer and removing the

computer cover . . . . . . . . . . . . . . . 99

Removing and installing hardware . . . . . . . 101

External options . . . . . . . . . . . . . 101

Device in the flex bay . . . . . . . . . . . 102

Storage drive in the front-access storage

enclosure . . . . . . . . . . . . . . . 105

Device in the multi-drive conversion kit . . . . 112

Cover presence switch . . . . . . . . . . 123

Storage drive in a storage drive bay . . . . . 125

Storage drive cage . . . . . . . . . . . . 133

M.2 solid-state drive . . . . . . . . . . . 136

Power supply assembly . . . . . . . . . . 147

PCIe card . . . . . . . . . . . . . . . 149

Full-length PCIe card . . . . . . . . . . . 155

Heat-sink-and-fan assembly . . . . . . . . 158

Super capacitor module. . . . . . . . . . 159

Front fan assembly. . . . . . . . . . . . 161

Rear fan assembly . . . . . . . . . . . . 163

Memory module . . . . . . . . . . . . . 164

Coin-cell battery. . . . . . . . . . . . . 166

Wi-Fi units . . . . . . . . . . . . . . . 167

Device in the 5.25-inch flex module . . . . . 174

Front panel I/O cage . . . . . . . . . . . 189

Microprocessor . . . . . . . . . . . . . 190

System board. . . . . . . . . . . . . . 194

Completing the parts replacement . . . . . . . 198

Chapter 10. Getting information,

help, and service . . . . . . . . . . . . 201

Information resources . . . . . . . . . . . . 201

Accessing the user guide in various

languages . . . . . . . . . . . . . . . 201

Windows help system . . . . . . . . . . 201

Safety and warranty . . . . . . . . . . . 201

Lenovo Web site. . . . . . . . . . . . . 201

Lenovo Support Web site . . . . . . . . . 201

Frequently asked questions . . . . . . . . 202

Help and service . . . . . . . . . . . . . . 202

Calling for service . . . . . . . . . . . . 202

Using other services . . . . . . . . . . . 203

Purchasing additional services . . . . . . . 203

Appendix A. System memory

speed. . . . . . . . . . . . . . . . . . 205

Appendix B. Supplemental

information about the Ubuntu operating

system . . . . . . . . . . . . . . . . . 207

Appendix C. Regulatory and TCO

Certified information of countries and

regions . . . . . . . . . . . . . . . . . 209

Appendix D. WEEE and recycling

information of countries and

regions . . . . . . . . . . . . . . . . . 213

Appendix E. Restriction of

Hazardous Substances (RoHS) Directive

of countries and regions . . . . . . . . 217

Appendix F. ENERGY STAR model

information. . . . . . . . . . . . . . . 219

ii P520 Hardware Maintenance Manual

Appendix G. Notices. . . . . . . . . . 221 Appendix H. Trademarks . . . . . . . 223

iv P520 Hardware Maintenance Manual

About this manual

This manual provides service and reference information for ThinkStation® computers listed on the front

cover.

Use this manual along with the advanced diagnostic tests to troubleshoot problems.

Important: This manual is intended only for trained service technicians who are familiar with ThinkStation

computers. Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively.

Before servicing a ThinkStation computer, be sure to read and understand Chapter 1 “Read this first:

Important safety information” on page 1.

vi P520 Hardware Maintenance Manual

Chapter 1. Read this first: Important safety information

This chapter contains the safety information that you must be familiar with.

Power cords and power adapters

Use only the power cords and power adapters supplied by the product manufacturer. Do not use the ac

power cord for other devices.

The power cords shall be safety approved. For Germany, it shall be H05VV-F, 3G, 0.75 mm2, or better. For

other countries, the suitable types shall be used accordingly.

Never wrap a power cord around a power adapter or other object. Doing so can stress the cord in ways that

can cause the cord to fray, crack, or crimp. This can present a safety hazard.

Always route power cords so that they will not be walked on, tripped over, or pinched by objects.

Protect power cord and power adapters from liquids. For instance, do not leave your power cord or power

adapter near sinks, tubs, toilets, or on floors that are cleaned with liquid cleansers. Liquids can cause a short

circuit, particularly if the power cord or power adapter has been stressed by misuse. Liquids also can cause

gradual corrosion of power cord terminals and/or the connector terminals on a power adapter, which can

eventually result in overheating.

Ensure that all power cord connectors are securely and completely plugged into receptacles.

Do not use any power adapter that shows corrosion at the ac input pins or shows signs of overheating (such

as deformed plastic) at the ac input or anywhere on the power adapter.

Do not use any power cords where the electrical contacts on either end show signs of corrosion or

overheating or where the power cord appears to have been damaged in any way.

General safety

Follow these rules to ensure general safety:

• Observe good housekeeping in the area of the machines during and after maintenance.

• When lifting any heavy object:

1. Ensure you can stand safely without slipping.

2. Distribute the weight of the object equally between your feet.

3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift.

4. Lift by standing or by pushing up with your leg muscles; this action removes the strain from the

muscles in your back.

Attention: Do not attempt to lift any objects that weigh more than 16 kg (35 lb) or objects that you

think are too heavy for you.

• Do not perform any action that causes hazards to the customer, or that makes the equipment unsafe.

• Before you start the machine, ensure that other service representatives and the customer's personnel are

not in a hazardous position.

• Place removed covers and other parts in a safe place, away from all personnel, while you are servicing the

machine.

• Keep your tool case away from walk areas so that other people will not trip over it.

• Do not wear loose clothing that can be trapped in the moving parts of a machine. Ensure that your sleeves

are fastened or rolled up above your elbows. If your hair is long, fasten it.

• Insert the ends of your necktie or scarf inside clothing or fasten it with a nonconductive clip, approximately

8 centimeters (3 inches) from the end.

• Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.

Remember: Metal objects are good electrical conductors.

• Wear safety glasses when you are: hammering, drilling, soldering, cutting wire, attaching springs, using

solvents, or working in any other conditions that might be hazardous to your eyes.

• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety device that

is worn or defective.

• Reinstall all covers correctly before returning the machine to the customer.

CAUTION:

Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury,

seek medical care immediately.

CAUTION:

Avoid contact with hot components inside the computer. During operation, some components

become hot enough to burn the skin. Before you open the computer cover, turn off the computer,

disconnect power, and wait approximately 10 minutes for the components to cool.

Electrical safety

CAUTION:

Electrical current from power, telephone, and communication cables can be hazardous. To avoid

personal injury or equipment damage, disconnect the attached power cords, telecommunication

systems, networks, and modems before you open the computer covers, unless instructed otherwise

in the installation and configuration procedures.

Observe the following rules when working on electrical equipment.

Important: Use only approved tools and test equipment. Some hand tools have handles covered with a soft

material that does not insulate you when working with live electrical currents. Many customers have, near

their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges.

Do not use this type of mat to protect yourself from electrical shock.

• Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical

accident occurs, you can then operate the switch or unplug the power cord quickly.

• Do not work alone under hazardous conditions or near equipment that has hazardous voltages.

• Disconnect all power before:

– Performing a mechanical inspection

– Working near power supplies

– Removing or installing Field Replaceable Units (FRUs)

2P520 Hardware Maintenance Manual

• Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer

to power-off the wall box that supplies power to the machine and to lock the wall box in the off position.

• If you need to work on a machine that has exposed electrical circuits, observe the following precautions:

– Ensure that another person, familiar with the power-off controls, is near you.

Remember: Another person must be there to switch off the power, if necessary.

– Use only one hand when working with powered-on electrical equipment; keep the other hand in your

pocket or behind your back.

Remember: There must be a complete circuit to cause electrical shock. By observing the above rule,

you may prevent a current from passing through your body.

– When using a tester, set the controls correctly and use the approved probe leads and accessories for

that tester.

– Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as

metal floor strips and machine frames.

Observe the special safety precautions when you work with very high voltages; these instructions are in

the safety sections of maintenance information. Use extreme care when measuring high voltages.

• Regularly inspect and maintain your electrical hand tools for safe operational condition.

• Do not use worn or broken tools and testers.

• Never assume that power has been disconnected from a circuit. First, check that it has been powered-off.

• Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors,

nongrounded power extension cables, power surges, and missing safety grounds.

• Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is

conductive; such touching can cause personal injury and machine damage.

• Do not service the following parts with the power on when they are removed from their normal operating

places in a machine:

– Power supply units

– Pumps

– Blowers and fans

– Motor generators

and similar units. (This practice ensures correct grounding of the units.)

• If an electrical accident occurs:

– Use caution; do not become a victim yourself.

– Switch off power.

– Send another person to get medical aid.

Safety inspection guide

The intent of this inspection guide is to assist you in identifying potentially unsafe conditions on these

products. Each machine, as it was designed and built, had required safety items installed to protect users

and service personnel from injury. This guide addresses only those items. However, good judgment should

be used to identify potential safety hazards due to attachment of features or options not covered by this

inspection guide.

If any unsafe conditions are present, you must determine how serious the apparent hazard could be and

whether you can continue without first correcting the problem.

Consider these conditions and the safety hazards they present:

Chapter 1.Read this first: Important safety information 3

• Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal

electrical shock).

• Explosive hazards, such as a damaged CRT face or bulging capacitor

• Mechanical hazards, such as loose or missing hardware

The guide consists of a series of steps presented in a checklist. Begin the checks with the power off, and the

power cord disconnected.

Checklist:

1. Check exterior covers for damage (loose, broken, or sharp edges).

2. Power-off the computer. Disconnect the power cord.

3. Check the power cord for:

a. A third-wire ground connector in good condition. Use a meter to measure third-wire ground

continuity for 0.1 ohm or less between the external ground pin and frame ground.

b. The power cord should be the appropriate type as specified in the parts listings.

c. Insulation must not be frayed or worn.

4. Remove the cover.

5. Check for any obvious alterations. Use good judgment as to the safety of any alterations.

6. Check inside the unit for any obvious unsafe conditions, such as metal filings, contamination, water or

other liquids, or signs of fire or smoke damage.

7. Check for worn, frayed, or pinched cables.

8. Check that the power-supply cover fasteners (screws or rivets) have not been removed or tampered

with.

Handling electrostatic discharge-sensitive devices

Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to

electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects.

Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the

person handling the part are all at the same charge.

Notes:

1. Use product-specific ESD procedures when they exceed the requirements noted here.

2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.

When handling ESD-sensitive parts:

• Keep the parts in protective packages until they are inserted into the product.

• Avoid contact with other people while handling the part.

• Wear a grounded wrist strap against your skin to eliminate static on your body.

• Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when

you are wearing a wrist strap.

• Use the black side of a grounded work mat to provide a static-free work surface. The mat is especially

useful when handling ESD-sensitive devices.

• Select a grounding system, such as those listed below, to provide protection that meets the specific

service requirement.

Note: The use of a grounding system is desirable but not required to protect against ESD damage.

4P520 Hardware Maintenance Manual

– Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground.

– Use an ESD common ground or reference point when working on a double-insulated or battery-

operated system. You can use coax or connector-outside shells on these systems.

– Use the round ground-prong of the ac plug on ac-operated computers.

Grounding requirements

Electrical grounding of the computer is required for operator safety and correct system function. Proper

grounding of the electrical outlet can be verified by a certified electrician.

Safety notices (multi-lingual translations)

The caution and danger safety notices in this section are provided in the following languages:

• English

• Arabic

• Brazilian/Portuguese

• Chinese (simplified)

• Chinese (traditional)

• French

• German

• Hebrew

• Italian

• Korean

• Spanish

DANGER

Electrical current from power, telephone and communication cables is hazardous.

To avoid a shock hazard:

• Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration

of this product during an electrical storm.

• Connect all power cords to a properly wired and grounded electrical outlet.

• Connect to properly wired outlets any equipment that will be attached to this product.

• When possible, use one hand only to connect or disconnect signal cables.

• Never turn on any equipment when there is evidence of fire, water, or structural damage.

• Disconnect the attached power cords, telecommunications systems, networks, and modems

before you open the device covers, unless instructed otherwise in the installation and configuration

procedures.

• Connect and disconnect cables as described in the following tables when installing, moving, or

opening covers on this product or attached devices.

Chapter 1.Read this first: Important safety information 5

To Connect To Disconnect

1. Turn everything OFF.

2. First, attach all cables to devices.

3. Attach signal cables to connectors.

4. Attach power cords to outlet.

5. Turn device ON.

1. Turn everything OFF.

2. First, remove power cords from outlet.

3. Remove signal cables from connectors.

4. Remove all cables from devices.

CAUTION:

When replacing the lithium battery, use only Part Number 45C1566 or an equivalent type battery

recommended by the manufacturer. If your system has a module containing a lithium battery, replace

it only with the same module type made by the same manufacturer. The battery contains lithium and

can explode if not properly used, handled, or disposed of. Do not:

• Throw or immerse into water

• Heat to more than 100°C (212°F)

• Repair or disassemble

Dispose of the battery as required by local ordinances or regulations.

CAUTION:

When laser products (such as CD-ROMs, DVD-ROM drives, fiber optic devices, or transmitters) are

installed, note the following:

• Do not remove the covers. Removing the covers of the laser product could result in exposure to

hazardous laser radiation. There are no serviceable parts inside the device.

• Use of controls or adjustments or performance of procedures other than those specified herein

might result in hazardous radiation exposure.

DANGER

Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following:

Laser radiation when open. Do not stare into the beam, do not view directly with optical

instruments, and avoid direct exposure to the beam.

6P520 Hardware Maintenance Manual

≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb)

CAUTION:

Use safe practices when lifting.

CAUTION:

The power control button on the device and the power switch on the power supply do not turn off the

electrical current supplied to the device. The device also might have more than one power cord. To

remove all electrical current from the device, ensure that all power cords are disconnected from the

power source.

Chapter 1.Read this first: Important safety information 7

8P520 Hardware Maintenance Manual

≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb)

Chapter 1.Read this first: Important safety information 9

PERIGO

A corrente elétrica proveniente de cabos de alimentação, de telefone e de comunicações é perigosa.

Para evitar risco de choque elétrico:

• Não conecte nem desconecte nenhum cabo ou execute instalação, manutenção ou reconfiguração deste

produto durante uma tempestade com raios.

• Conecte todos os cabos de alimentação a tomadas elétricas corretamente instaladas e aterradas.

• Todo equipamento que for conectado a este produto deve ser conectado a tomadas corretamente

instaladas.

• Quando possível, utilize apenas uma das mãos para conectar ou desconectar cabos de sinal.

• Nunca ligue nenhum equipamento quando houver evidência de fogo, água ou danos estruturais.

• Antes de abrir tampas de dispositivos, desconecte cabos de alimentação, sistemas de telecomunicação,

redes e modems conectados, a menos que especificado de maneira diferente nos procedimentos de

instalação e configuração.

• Conecte e desconecte os cabos conforme descrito na tabela apresentada a seguir ao instalar, mover ou

abrir tampas deste produto ou de dispositivos conectados.

Para Conectar: Para Desconectar:

1. DESLIGUE Tudo.

2. Primeiramente, conecte todos os cabos aos

dispositivos.

3. Conecte os cabos de sinal aos conectores.

4. Conecte os cabos de alimentação às tomadas.

5. LIGUE os dispositivos.

1. DESLIGUE Tudo.

2. Primeiramente, remova os cabos de alimentação das

tomadas.

3. Remova os cabos de sinal dos conectores.

4. Remova todos os cabos dos dispositivos.

CUIDADO:

Ao substituir a bateria de lítio, utilize apenas uma bateria com Número de Peça 45C1566 ou um tipo de

bateria equivalente recomendado pelo Se o seu sistema possui um módulo com uma bateria de lítio,

substitua-o apenas por um módulo do mesmo tipo e do mesmo fabricante. A bateria contém lítio e

pode explodir se não for utilizada, manuseada ou descartada de maneira correta.

Não:

• Jogue ou coloque na água

• Aqueça a mais de 100°C (212°F)

• Conserte nem desmonte

Descarte a bateria conforme requerido pelas leis ou regulamentos locais.

PRECAUCIÓN:

10 P520 Hardware Maintenance Manual

Quando produtos a laser (como unidades de CD-ROMs, unidades de DVD-ROM, dispositivos de fibra ótica

ou transmissores) estiverem instalados, observe o seguinte:

• Não remova as tampas. A remoção das tampas de um produto a laser pode resultar em exposição

prejudicial à radiação de laser. Não existem peças que podem ser consertadas no interior do dispositivo.

• A utilização de controles ou ajustes ou a execução de procedimentos diferentes dos especificados aqui

pode resultar em exposição prejudicial à radiação.

PERIGO

Alguns produtos a laser contêm diodo de laser integrado da Classe 3A ou da Classe 3B. Observe o seguinte:

Radiação a laser quando aberto. Não olhe diretamente para o feixe a olho nu ou com instrumentos ópticos e

evite exposição direta ao feixe.

≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb)

CUIDADO:

Utilize procedimentos de segurança para levantar equipamentos.

CUIDADO:

O botão de controle de alimentação do dispositivo e o botão para ligar/desligar da fonte de alimentação não

desligam a corrente elétrica fornecida ao dispositivo. O dispositivo também pode ter mais de um cabo de

alimentação. Para remover toda a corrente elétrica do dispositivo, assegure que todos os cabos de

alimentação estejam desconectados da fonte de alimentação.

Chapter 1.Read this first: Important safety information 11

12 P520 Hardware Maintenance Manual

Chapter 1.Read this first: Important safety information 13

14 P520 Hardware Maintenance Manual

DANGER

Le courant électrique provenant de l'alimentation, du téléphone et des câbles de transmission peut présenter

un danger.

Pour éviter tout risque de choc électrique :

• Ne manipulez aucun câble et n'effectuez aucune opération d'installation, d'entretien ou de reconfiguration

de ce produit au cours d'un orage.

• Branchez tous les cordons d'alimentation sur un socle de prise de courant correctement câblé et mis à la

terre.

• Branchez sur des socles de prise de courant correctement câblés tout équipement connecté à ce produit.

• Lorsque cela est possible, n'utilisez qu'une seule main pour connecter ou déconnecter les câbles

d'interface.

• Ne mettez jamais un équipement sous tension en cas d'incendie ou d'inondation, ou en présence de

dommages matériels.

• Avant de retirer les carters de l'unité, mettez celle-ci hors tension et déconnectez ses cordons

d'alimentation, ainsi que les câbles qui la relient aux réseaux, aux systèmes de télécommunication et aux

modems (sauf instruction contraire mentionnée dans les procédures d'installation et de configuration).

• Lorsque vous installez, que vous déplacez, ou que vous manipulez le présent produit ou des

périphériques qui lui sont raccordés, reportez-vous aux instructions ci-dessous pour connecter et

déconnecter les différents cordons.

Chapter 1.Read this first: Important safety information 15

Connexion Déconnexion

1. Mettez les unités HORS TENSION.

2. Commencez par brancher tous les cordons sur les

unités.

3. Branchez les câbles d'interface sur des

connecteurs.

4. Branchez les cordons d'alimentation sur des prises.

5. Mettez les unités SOUS TENSION.

1. Mettez les unités HORS TENSION.

2. Débranchez les cordons d'alimentation des prises.

3. Débranchez les câbles d'interface des connecteurs.

4. Débranchez tous les câbles des unités.

ATTENTION:

Remplacer la pile au lithium usagée par une pile de référence identique exclusivement, (référence

45C1566), ou suivre les instructions du fabricant qui en définit les équivalences. Si votre système est

doté d'un module contenant une pile au lithium, vous devez le remplacer uniquement par un module

identique, produit par le même fabricant. La pile contient du lithium et peut exploser en cas de

mauvaise utilisation, de mauvaise manipulation ou de mise au rebut inappropriée.

Ne pas :

• la jeter à l'eau,

• l'exposer à des températures supérieures à 100°C,

• chercher à la réparer ou à la démonter.

Ne pas mettre la pile à la poubelle. Pour la mise au rebut, se reporter à la réglementation en vigueur.

ATTENTION:

Si des produits à laser (tels que des unités de CD-ROM, de DVD-ROM, des unités à fibres optiques, ou

des émetteurs) sont installés, prenez connaissance des informations suivantes :

• Ne retirez pas le carter. En ouvrant l'unité de CD-ROM ou de DVD-ROM, vous vous exposez au

rayonnement dangereux du laser. Aucune pièce de l'unité n'est réparable.

• Pour éviter tout risque d'exposition au rayon laser, respectez les consignes de réglage et

d'utilisation des commandes, ainsi que les procédures décrites dans le présent manuel.

DANGER

Certains produits à laser contiennent une diode à laser intégrée de classe 3A ou 3B. Prenez

connaissance des informations suivantes:

Rayonnement laser lorsque le carter est ouvert. Evitez toute expositiondirecte au rayon laser. Evitez

de regarder fixement le faisceau ou del'observer à l'aide d'instruments optiques.

16 P520 Hardware Maintenance Manual

≥18 kg (37 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb)

ATTENTION:

Soulevez la machine avec précaution.

ATTENTION:

L'interrupteur de contrôle d'alimentation de l'unité et l'interrupteur dubloc d'alimentation ne coupent

pas le courant électrique alimentantl'unité. En outre, le système peut être équipé de plusieurs

cordonsd'alimentation. Pour mettre l'unité hors tension, vous devez déconnectertous les cordons de

la source d'alimentation.

VORSICHT

An Netz-, Telefon- und Datenleitungen können gefährliche Spannungen anliegen.

Aus Sicherheitsgründen:

• Bei Gewitter an diesem Gerät keine Kabel anschließen oder lösen. Ferner keine Installations-,

Wartungs- oder Rekonfigurationsarbeiten durchführen.

• Gerät nur an eine Schutzkontaktsteckdose mit ordnungsgemäß geerdetem Schutzkontakt

anschließen.

• Alle angeschlossenen Geräte ebenfalls an Schutzkontaktsteckdosen mit ordnungsgemäß

geerdetem Schutzkontakt anschließen.

• Die Signalkabel nach Möglichkeit einhändig anschließen oder lösen, um einen Stromschlag durch

Berühren von Oberflächen mit unterschiedlichem elektrischem Potenzial zu vermeiden.

• Geräte niemals einschalten, wenn Hinweise auf Feuer, Wasser oder Gebäudeschäden vorliegen.

Chapter 1.Read this first: Important safety information 17

• Die Verbindung zu den angeschlossenen Netzkabeln, Telekommunikationssystemen, Netzwerken

und Modems ist vor dem Öffnen des Gehäuses zu unterbrechen, sofern in den Installations- und

Konfigurationsprozeduren keine anders lautenden Anweisungen enthalten sind.

• Zum Installieren, Transportieren und Öffnen der Abdeckungen des Computers oder der

angeschlossenen Einheiten die Kabel gemäß der folgenden Tabelle anschließen und abziehen.

Zum Anschließen der Kabel gehen Sie wie folgt vor Zum Abziehen der Kabel gehen Sie wie folgt vor

1. Schalten Sie alle Einheiten AUS.

2. Schließen Sie erst alle Kabel an die Einheiten an.

3. Schließen Sie die Signalkabel an die Buchsen an.

4. Schließen Sie die Netzkabel an die Steckdose an.

5. Schalten Sie die Einheit EIN.

1. Schalten Sie alle Einheiten AUS.

2. Ziehen Sie zuerst alle Netzkabel aus den

Netzsteckdosen.

3. Ziehen Sie die Signalkabel aus den Buchsen.

4. Ziehen Sie alle Kabel von den Einheiten ab.

CAUTION:

Eine verbrauchte Lithiumbatterie nur durch eine Batterie mit der Teilenummer 45C1566 oder eine

gleichwertige, vom Hersteller empfohlene Batterie ersetzen. Enthält das System ein Modul mit einer

Lithiumbatterie, dieses nur durch ein Modul desselben Typs und von demselben Hersteller ersetzen. Die

Batterie enthält Lithium und kann bei unsachgemäßer Verwendung, Handhabung oder Entsorgung

explodieren.

Die Batterie nicht:

• mit Wasser in Berührung bringen.

• über 100 C erhitzen.

• reparieren oder zerlegen.

Die örtlichen Bestimmungen für die Entsorgung von Sondermüll beachten.

ACHTUNG:

Bei der Installation von Lasergeräten (wie CD-ROM-Laufwerken, DVD- aufwerken, Einheiten mit

Lichtwellenleitertechnik oder Sendern) Folgendes beachten:

• Die Abdeckungen nicht entfernen. Durch Entfernen der Abdeckungen des Lasergeräts können

gefährliche Laserstrahlungen freigesetzt werden. Das Gerät enthält keine zu wartenden Teile.

• Werden Steuerelemente, Einstellungen oder Durchführungen von Prozeduren anders als hier

angegeben verwendet, kann gefährliche Laserstrahlung auftreten.

VORSICHT

Einige Lasergeräte enthalten eine Laserdiode der Klasse 3A oder 3B. Beachten Sie Folgendes:

18 P520 Hardware Maintenance Manual

Laserstrahlung bei geöffneter Verkleidung. Nicht in den Strahl blicken. Keine Lupen oder Spiegel

verwenden. Strahlungsbereich meiden.

≥18 kg ≥32 kg ≥55 kg

ACHTUNG:

Arbeitsschutzrichtlinien beim Anheben der Maschine beachten.

ACHTUNG:

Mit dem Netzschalter an der Einheit und am Netzteil wird die Stromversorgung für die Einheit nicht

unterbrochen. Die Einheit kann auch mit mehreren Netzkabeln ausgestattet sein. Um die

Stromversorgung für die Einheit vollständig zu unterbrechen, müssen alle zum Gerät führenden

Netzkabel vom Netz getrennt werden.

Chapter 1.Read this first: Important safety information 19

20 P520 Hardware Maintenance Manual

PERICOLO

La corrente elettrica proveniente dai cavi di alimentazione, del telefono e di comunicazione può essere

pericolosa.

Per evitare il rischio di scosse elettriche:

Chapter 1.Read this first: Important safety information 21

• Non collegare o scollegare qualsiasi cavo oppure effettuare l'installazione, la manutenzione o la

riconfigurazione del prodotto durante un temporale.

• Collegare tutti i fili elettrici a una presa di alimentazione correttamente cablata e dotata di messa a

terra.

• Collegare alle prese elettriche appropriate tutte le apparecchiature che verranno utilizzate per

questo prodotto.

• Se possibile, utilizzare solo una mano per collegare o scollegare i cavi di segnale.

• Non accendere assolutamente apparecchiature in presenza di incendi, perdite d'acqua o danno

strutturale.

• Scollegare i cavi di alimentazione, i sistemi di telecomunicazione, le reti e il modem prima di aprire i

coperchi del dispositivo, salvo istruzioni contrarie relative alle procedure di installazione e

configurazione.

• Collegare e scollegare i cavi come descritto nella seguente tabella quando vengono effettuate

operazioni di installazione, spostamento o apertura dei coperchi di questo prodotto o delle unità

collegate.

Per collegarsi Per scollegarsi

1. SPEGNERE le apparecchiature.

2. Innanzitutto, collegare tutti i cavi alle unità.

3. Collegare i cavi di segnale ai connettori.

4. Collegare i cavi di alimentazione alla presa.

5. Accendere l'unità.

1. SPEGNERE le apparecchiature.

2. Innanzitutto, rimuovere i cavi di alimentazione dalla

presa.

3. Rimuovere i cavi di segnale dai connettori.

4. Rimuovere tutti i cavi dalle unità.

ATTENZIONE:

Quando si sostituisce la batteria al litio, utilizzare solo il Numero parte 45C1566 o un tipo di batteria

equivalente consigliato dal produttore. Se sul sistema è presente un modulo che contiene una batteria

al litio, sostituirlo solo con un tipo di modulo dello stesso tipo della stessa casa di produzione. La

batteria contiene litio e può esplodere se usata, maneggiata o smaltita in modo non corretto.

Non:

• Gettare o immergere la batteria nell'acqua

• Riscaldarla ad una temperatura superiore ai 100 gradi C (212 gradi F)

• Smontarla, ricaricarla o tentare di ripararla

Le batterie usate vanno smaltite in accordo alla normativa in vigore (DPR 915/82 e successive

disposizioni e disposizioni locali).

ATTENZIONE:

Quando vengono installati prodotti laser (quali CD-ROM, unità DVD-ROM, unità a fibre ottiche o

trasmittenti), tener presente quanto segue:

22 P520 Hardware Maintenance Manual

• Non rimuovere gli sportelli. L'apertura di un'unità laser può determinare l'esposizione a radiazioni

laser pericolose. All'interno dell'unità non vi sono parti su cui effettuare l'assistenza tecnica.

• L'utilizzo di controlli, regolazioni o l'esecuzione di procedure non descritti nel presente manuale

possono provocare l'esposizione a radiazioni pericolose.

PERICOLO

Alcune unità laser contengono un diodo laser di Classe 3A o Classe 3B. Tener presente quanto segue:

Aprendo l'unità vengono emesse radiazioni laser. Non fissare il fascio, non guardarlo direttamente

con strumenti ottici ed evitare l'esposizione al fascio.

≥18 kg ≥32 kg ≥55 kg

ATTENZIONE:

Prestare attenzione nel sollevare l'apparecchiatura.

ATTENZIONE:

Il pulsante di controllo dell'alimentazione presente sull'unità e l'interruttore dell'alimentatore non

disattivano l'alimentazione corrente fornita all'unità. E' possibile che l'unità disponga di più cavi di

alimentazione. Per disattivare l'alimentazione dall'unità, accertarsi che tutti i cavi di alimentazione

siano scollegati dalla fonte di alimentazione.

Chapter 1.Read this first: Important safety information 23

24 P520 Hardware Maintenance Manual

PELIGRO

La corriente eléctrica procedente de cables de alimentación, teléfonos y cables de comunicación puede ser

peligrosa.

Para evitar el riesgo de descarga eléctrica:

• No conecte ni desconecte los cables ni realice ninguna tarea de instalación, mantenimiento o

reconfiguración de este producto durante una tormenta eléctrica.

• Conecte todos los cables de alimentación a tomas de corriente debidamente cableadas y

conectadas a tierra.

• Cualquier equipo que se conecte a este producto también debe conectarse a tomas de corriente

debidamente cableadas.

• Siempre que sea posible, utilice una sola mano para conectar o desconectar los cables de señal.

Chapter 1.Read this first: Important safety information 25

• No encienda nunca un equipo cuando hay señales de fuego, agua o daños estructurales.

• Desconecte los cables de alimentación, los sistemas de telecomunicaciones, las redes y los

módems conectados antes de abrir las cubiertas de los dispositivos, a menos que se indique lo

contrario en los procedimientos de instalación y configuración.

• Conecte y desconecte los cables, como se describe en la tabla siguiente, cuando instale, mueva o

abra las cubiertas de este producto o de los dispositivos conectados.

Para conectar Para desconectar

1. APÁGUELO todo.

2. En primer lugar, conecte todos los cables a los

dispositivos.

3. Conecte los cables de señal a los conectores.

4. Enchufe los cables de alimentación a las tomas de

corriente.

5. Encienda el dispositivo.

1. APÁGUELO todo.

2. En primer lugar, desenchufe los cables de

alimentación de las tomas de corriente.

3. Desconecte los cables de señal de los conectores.

4. Desconecte todos los cables de los dispositivos.

PRECAUCIÓN:

Cuando sustituya una batería de litio, utilice solamente una batería número de pieza 45C1566 u otra

de tipo equivalente recomendada por el fabricante. Si su sistema dispone de un módulo que contiene

una batería de litio, reemplácelo sólo con el mismo tipo de módulo, del mismo fabricante. La batería

contiene litio y puede explotar si no se utiliza, manipula o desecha correctamente.

No debe:

• Arrojarla al agua o sumergirla en ella

• Exponerla a temperaturas superiores a 100°C (212°F)

• Repararla o desmontarla

Deshágase de la batería según especifiquen las leyes o normas locales.

PRECAUCIÓN:

Cuando haya productos láser (como unidades de CD-ROM, unidades de DVD, dispositivos de fibra

óptica o transmisores) instalados, tenga en cuenta lo siguiente:

• No quite las cubiertas. Si quita las cubiertas del producto láser, podría quedar expuesto a radiación

láser peligrosa. Dentro del dispositivo no existe ninguna pieza que requiera servicio técnico.

• Si usa controles o ajustes o realiza procedimientos que no sean los especificados aquí, podría

exponerse a radiaciones peligrosas.

PELIGRO

26 P520 Hardware Maintenance Manual

Algunos productos láser tienen incorporado un diodo láser de clase 3A o clase 3B. Tenga en cuenta lo

Cuando se abre, queda expuesto a radiación láser. No mire directamente al rayo láser, ni siquiera con

instrumentos ópticos, y evite exponerse directamente al rayo láser.

≥18 kg ≥32 kg ≥55 kg

PRECAUCIÓN:

Adopte procedimientos seguros al levantar el equipo.

PRECAUCIÓN:

El botón de control de alimentación del dispositivo y el interruptor de alimentación de la fuente de

alimentación no desconectan la corriente eléctrica suministrada al dispositivo. Además, el dispositivo

podría tener más de un cable de alimentación. Para suprimir toda la corriente eléctrica del dispositivo,

asegúrese de que todos los cables de alimentación estén desconectados de la toma de corriente.

Chapter 1.Read this first: Important safety information 27

28 P520 Hardware Maintenance Manual

Chapter 2. Product overview

This chapter provides basic information to help you get familiar with your computer.

Hardware locations

This section provides information about the locations of your computer hardware.

Front view

Note: The computer hardware might look slightly different from the illustration.

Figure 1. Front connectors, controls, and indicators

1 Optical-drive eject/close button (available on some

models)

2 Signal diagnostic LED indicator

3 Power button 4 Power indicator

5 Storage drive activity indicator 6 Photoelectric sensor

7 Headset connector 8 USB 3.0 connectors (4)

9 SD card slot

1 Optical-drive eject/close button (available on some models)

Press the button to eject or close the tray of the optical drive.

30 P520 Hardware Maintenance Manual

2 Signal diagnostic LED indicator

Off (when the computer is powered on): No error or issue is detected on your computer during normal

operation.

On: A catastrophic error is detected on your computer during normal operation.

Blinking: An error or issue is detected on your computer during normal operation.

3 Power button

Press the power button to turn on your computer. If your computer is unresponsive, you can turn off the

computer by pressing and holding the power button for four or more seconds.

4 Power indicator

When the power indicator is on, the computer is turned on.

5 Storage drive activity indicator

This indicator shows the status of the internal storage drives (such as hard disk drives or solid-state drives).

On: The storage drives are active and data is being transferred.

Off (when the computer is powered on): No data is being transferred or the storage drives are not in use.

6 Photoelectric sensor

This sensor receives the flash light sent by the Lenovo PC Diagnostics application installed in the

smartphone. Then, the photoelectric sensor triggers the computer to send the tune of the detected error to

the smartphone for users to decode the error.

7 Headset connector

Use this connector to attach a headset to your computer.

8 USB 3.0 connector (4)

Use this connector to attach a USB-compatible device, such as a USB keyboard, mouse, storage drive, or

printer.

9 SD card slot

Insert a secure digital (SD) card into the slot to access the data on the card.

Chapter 2.Product overview 31

Rear view

Some connectors on the rear of your computer are color-coded to help you determine where to connect the

cables on your computer.

Note: The computer hardware might look slightly different from the illustration.

Figure 2. Rear view

1 PS/2 mouse connector 2 PS/2 keyboard connector

3 Optional serial connector 4 Ethernet connector

5 USB 3.0 connectors (4) 6 USB 2.0 connectors (2)

7 Microphone connector 8 Audio line-out connector

9 Audio line-in connector 10 Power-cord connector

11 Security-lock slot 12 Key-nest slots

13 PCI/PCIe card area*

32 P520 Hardware Maintenance Manual

Notes: *A discrete graphics card or a network adapter can be installed in the appropriate Peripheral

Component Interconnect (PCI)/PCI Express (PCIe) card slot. If such a card is installed, use the connectors on

the card instead of the corresponding connectors on the computer to optimize the performance. Depending

on your computer model, the preinstalled cards might vary. One or more graphics cards might be installed to

provide the following connectors:

• Digital Visual Interface (DVI) connector

• DisplayPort® connector

• Mini DisplayPort® connector

DisplayPort connector

Use this connector to attach a high-performance monitor, a direct-drive monitor, or other compatible

devices.

DVI monitor connector

Use this connector to attach a DVI monitor or other compatible devices.

Mini DisplayPort connector

Use this connector to attach a high-performance monitor, a direct-drive monitor, or other compatible

devices. The Mini DisplayPort connector is a miniaturized version of a DisplayPort connector.

1 PS/2 mouse connector

Use this connector to attach a Personal System/2 (PS/2) mouse, a trackball, or other pointing devices.

2 PS/2 keyboard connector

Use this connector to attach a PS/2 keyboard.

3 Optional serial connector

Use this connector to attach an external modem, a serial printer, or other devices that use a 9-pin serial

connector.

4 Ethernet connector

Connect an Ethernet cable for a local area network (LAN).

Note: To operate the computer within Federal Communications Commission (FCC) Class B limits, use a

Category 5 Ethernet cable.

5 USB 3.0 connectors (4)

Use this connector to attach a USB-compatible device, such as a USB keyboard, mouse, storage drive, or

printer.

6 USB 2.0 connectors (2)

Use this connector to attach a USB-compatible device, such as a USB keyboard, mouse, storage drive, or

printer.

Chapter 2.Product overview 33

7 Microphone connector

Use this connector to attach a microphone to your computer when you want to record sound or if you use

speech-recognition software.

8 Audio line-out connector

The audio line-out connector is used to send audio signals from the computer to external devices, such as

headphones.

9 Audio line-in connector

The audio line-in connector is used to receive audio signals from an external audio device, such as a stereo

system. When you attach an external audio device, a cable connection is established between the audio line-

out connector of the device and the audio line-in connector of the computer.

10 Power-cord connector

Connect the power cord to your computer for power supply.

11 Security-lock slot

Attach a Kensington-style cable lock to the security-lock slot to secure your computer. For more information,

see “Attaching a Kensington-style cable lock” on page 62.

12 Key-nest slots

Install the key holder that comes with the computer-cover-lock key to the key-nest slots.

13 PCI/PCIe card area

To further improve the computer performance, you can install PCI/PCIe cards into this area. Depending on

your computer model, the pre-installed cards in this area might vary.

34 P520 Hardware Maintenance Manual

Computer components

Notes:

• Depending on the model, your computer might look slightly different from the illustration.

• To remove the computer cover, see “Preparing your computer and removing the computer cover” on

page 99.

Figure 3. Component locations

1 Heat-sink-and-fan assembly 2 Memory modules*

3 Flex bays* 4 Storage drive cage*

5 Front fan assembly 6 Storage drives*

7 M.2 solid-state drives* 8 Power supply assembly

9 PCI/PCIe card* 10 Rear fan assembly

11 Cover presence switch (also called intrusion switch)

* Configuration varies by computer models.

Major FRUs and CRUs

This section introduces the location of FRUs and Customer Replaceable Units (CRUs) in the computer, and

identifies which FRUs are also self-service CRUs or optional-service CRUs.

Chapter 2.Product overview 35

Notes:

• Self-service CRUs: Refer to parts that can be installed or replaced easily by customer themselves or by

trained service technicians at an additional cost.

• Optional-service CRUs: Refer to parts that can be installed or replaced by customers with a greater skill

level. Trained service technicians can also provide service to install or replace the parts under the type of

warranty designated for the customer’s machine.

• FRUs: Refer to parts that must be installed or replaced only by trained service technicians. If customers

choose to replace the FRUs by themselves, the product warranty might be affected.

This chapter includes the following topics:

1. “Major FRUs and CRUs” on page 37

2. “Accessories” on page 39

3. “FRUs in the flex module” on page 40

4. “FRUs in the multi-drive conversion kit” on page 41

36 P520 Hardware Maintenance Manual

Major FRUs and CRUs

Figure 4. Major FRUs and CRUs

Number FRU description Self-service CRU Optional-service CRU

1Rear fan assembly No Yes

2Heat sink and fan assembly No Yes

Chapter 2.Product overview 37

Number FRU description Self-service CRU Optional-service CRU

3Front panel I/O cage No No

4Slim-optical-drive adapter (available on some

models)

Yes No

5Multi-drive conversion kit (available on some

models), see “FRUs in the multi-drive conversion

kit” on page 41.

Yes No

6Optical drive (available on some models) Yes No

7Front access storage enclosure (available on

some models)

Yes No

8Flex module (available on some models), see

“FRUs in the flex module” on page 40.

Yes No

9VROC upgrade key module (available on some

models)

No No

10 Front fan assembly Yes No

11 Storage drive cage (available on some models) No Yes

12 Computer cover Yes No

13 Hard disk drive Yes No

14 Solid-state drive Yes No

15 Power supply assembly No Yes

16 M.2 solid-state drive heat sink (available on some

models)

No Yes

17 M.2 solid-state drive (available on some models) No Yes

18 Wi-Fi adapter (available on some models) No Yes

19 PCI card or PCIe card (available on some models) No Yes

20 Super capacitor module (available on some

models)

Yes No

21 Wi-Fi card (available on some models) No Yes

22 Cover presence switch (intrusion switch) Yes No

23 Wi-Fi antenna (available on some models) No Yes

24 Memory modules Yes No

25 System board No No

26 Microprocessor No No

27 Coin-cell battery No Yes

aLenovo factory recovery USB key (available on

some models)

No No

bLenovo recovery disc set (available on some

models)

No No

cMiscellaneous parts kits No No

dPower cord Yes No

38 P520 Hardware Maintenance Manual

Number FRU description Self-service CRU Optional-service CRU

eKeyboard (available on some models) Yes No

fMouse (available on some models) Yes No

Accessories

Figure 5. Accessories

Number FRU description Self-service CRU Optional-service CRU

aLenovo factory recovery USB key No No

bPower cord Yes No

cLenovo recovery disc set No No

dKeyboard Yes No

eMouse Yes No

fMiscellaneous parts kits No No

Chapter 2.Product overview 39

FRUs in the flex module

Figure 6. FRUs in the flex module

Number FRU description Self-service CRU Optional-service CRU

1Flex module Yes No

2eSATA connector No No

3IEEE 1394 connector No No

4USB-C connector No No

5Front Thunderbolt adapter kit No No

615-in-1 card reader No No

7Slim optical drive No No

40 P520 Hardware Maintenance Manual

FRUs in the multi-drive conversion kit

Figure 7. FRUs in the multi-drive conversion kit

Number FRU description Self-service CRU Optional-service CRU

1Multi-drive conversion kit Yes No

2Slim optical drive No No

3Slim optical drive bracket No No

43.5-inch storage drive No No

52.5-inch storage drive with the conversion

bracket

No No

For detailed FRU and CRU information, such as the FRU part numbers and supported computer models, go

to:

http://www.lenovo.com/serviceparts-lookup

Chapter 2.Product overview 41

Parts on the system board

Note: The system board might look slightly different from the illustration.

Figure 8. System board part locations

1 Cover presence switch connector (intrusion switch

connector)

2 Memory slot

3 Memory slot 4 Rear-fan-assembly connector

5 Memory slot 6 Memory slot

7 Microprocessor fan connector 8 Memory slot

9 Memory slot 10 Optical-drive fan connector 1

11 Optical-drive fan connector 2 12 Memory slot

13 Memory slot 14 Thermal-sensor connector

15 4-pin power connector (for optical drive) 16 Clear CMOS /Recovery jumper

17 VROC connector 18 Front panel input/output (FPIO) connector

42 P520 Hardware Maintenance Manual

19 Memory fan connector 1 20 M.2 solid-state drive slot 2

21 M.2 solid-state drive slot 1 22 6-pin power connector (for graphics card)

23 6-pin power connector (for graphics card) 24 Internal-storage-drive activity indicator connector

25 4-pin power connector (for storage drive) 26 Front-fan-assembly connector

27 Thunderbolt™ control connector 28 SATA 2 connector

29 SATA 3 connector 30 SATA 6 connector

31 SATA 1 connector 32 SATA 4 connector

33 Internal USB 3.0 connector 2 34 Internal USB 3.0 connector 1

35 SATA 5 connector 36 Four-digit-diagnostics display connector

37 eSATA/SATA 7 connector 38 Internal USB 2.0 connector

39 Trusted cryptography module (TCM) connector 40 Power supply connector

41 PCIe 3.0 x4 card slot 42 PCI card slot

43 PCIe 3.0 x16 card slot 44 PCIe 3.0 x4 card slot

45 PCIe 3.0 x16 card slot 46 PCIe 3.0 x8 card slot

47 Coin-cell battery 48 Memory fan connector 2

49 Microprocessor 50 Serial port (COM) connector

Chapter 2.Product overview 43

Internal storage drives

Internal storage drives are devices that your computer uses to read and store data. You can add drives to

your computer to increase storage capacity and enable your computer to read other types of media. Internal

storage drives are installed in bays.

When you remove or install an internal storage drive, note the type and size of the drive that each bay

supports and correctly connect the required cables. Refer to the appropriate section in Chapter 9 “Hardware

removal and installation” on page 99 for instructions on how to remove or install internal storage drives for

your computer.

The following illustration shows the locations of the storage drive bays.

Note: The computer hardware might look slightly different from the illustration.

Figure 9. Storage drive bay locations

1 Card reader (for an SD card) 2 Flex bays (2)

3 Storage drive bays (2) (available on some models) 4 Storage drive bays (2)

5 M.2 solid-state drive slots (2) 6 PCIe slots (5)

1 Card reader

An SD card is installed in some models.

2 Flex bays (2)

Depending on your computer model, the following devices might be installed in the flex bays:

44 P520 Hardware Maintenance Manual

• Flex module

Depending on your computer model, the following parts might be installed in the flex module:

– 15-in-1 card reader

– External Serial Advanced Technology Attachment (eSATA) connector

– Four-digit diagnostic display

– Institute of Electrical and Electronics Engineers (IEEE) 1394 connector

– Slim optical drive

– Thunderbolt adapter kit

• Front-access storage enclosure

• Multi-drive conversion kit

Depending on your computer model, the following parts might be installed in the multi-drive conversion

kit:

– Storage drive (such as hard disk drive, solid-state drive, or hybrid drive)

– Slim optical drive

• Optical drive

• Slim-optical-drive adapter

3 Optional-storage-drive bays (2) (available on some models)

You can install hard disk drives, solid-state drives, or hybrid drives in the storage drive bays.

4 Storage drive bays (2)

You can install hard disk drives, solid-state drives, or hybrid drives in the storage drive bays.

5 M.2 solid-state drive slots (2)

One or two M.2 solid-state drives are installed in some models.

6 PCIe slots (5)

You can install compatible PCIe cards and PCIe solid-state drives in the PCIe card slots.

Chapter 2.Product overview 45

Machine type and model label

The machine type and model label identifies your computer. When you contact Lenovo for help, the machine

type and model information helps support technicians to identify your computer and provide faster service.

The following is a sample of the machine type and model label.

Note: The computer hardware might look slightly different from the illustration.

Figure 10. Machine type and model label

Computer features

For your specific computer model, some features might vary or not apply.

Information about your computer

• To view basic information (such as microprocessor and memory information) about your computer, do the

following:

1. Click the Start button to open the Start menu.

2. Click Settings ➙ System ➙ About.

• To view detailed information about the devices (such as the optical drive and network adapters) on your

computer, do the following:

1. Right-click the Start button to open the Start context menu.

2. Click Device Manager.

3. Locate and double-click your device in Device Manager to view device properties. Type the

administrator password or provide confirmation if prompted.

46 P520 Hardware Maintenance Manual

Memory

Up to eight double data rate 4 (DDR4) error correction code (ECC) registered dual inline memory modules

(RDIMMs)

Storage drives

Your computer supports the following storage drives:

• Hard disk drive

• Hybrid drive (available on some models)

• M.2 solid-state drive (available on some models)

• Optical drive (available on some models)

• SD card (available on some models)

• Solid-state drive (available on some models)

• Intel® Optane™ Memory (available on some models)

To view the amount of storage drive space, do the following:

1. Right-click the Start button to open the Start context menu.

2. Click Disk Management and follow the instructions on the screen.

Video features

• PCIe 3.0 x16 card slots on the system board for a discrete graphics card

• Video connectors on a discrete graphics card:

– DVI connector (available on some models)

– DisplayPort connector (available on some models)

– Mini DisplayPort connector (available on some models)

Audio features

Integrated audio controller supports the following connectors and devices on your computer:

• Audio line-in connector

• Audio line-out connector

• Headset connector

• Internal speaker

• Microphone connector

Input/Output (I/O) features

• 100/1000 Mbps Ethernet connector

• Audio connectors (audio line-in connector, audio line-out connector, microphone connector, and headset

connector)

• Display connectors (DisplayPort connector, DVI connector, and Mini DisplayPort connector) (vary by

graphics card)

• Optional 9-pin serial connector

• PS/2 keyboard connector

• PS/2 mouse connector

• USB connectors

• USB-C connector (available on some models)

Chapter 2.Product overview 47

Expansion

• Flex bays

• Storage drive bays

• M.2 solid-state drive slots

• Memory slots

• One PCI card slot

• Two PCIe 3.0 x4 card slot

• One PCIe 3.0 x8 card slot

• Two PCIe 3.0 x16 card slots

• SD card slot

Power supply

Your computer comes with one of the following power supplies:

• 690-watt automatic voltage-sensing power supply

• 900-watt automatic voltage-sensing power supply

• 1000-watt automatic voltage-sensing power supply

Wireless features

Depending on your computer model, the following wireless features are supported:

• Wireless LAN

• Bluetooth

System management features

• Ability to store power-on self-test (POST) hardware test results

• Desktop Management Interface (DMI)

Desktop Management Interface provides a common path for users to access information about all

aspects of a computer. The information includes the processor type, installation date, attached printers

and other peripherals, power sources, and maintenance history.

• ErP LPS compliance mode

The energy-related products directive (ErP) lowest power state (LPS) compliance mode reduces the

consumption of electricity when your computer is in sleep or off mode. For more information, see

“Enabling or disabling the ErP LPS compliance mode” on page 68.

• Intel® Standard Manageability (ISM)

Intel Standard Manageability builds certain functionalities into computer hardware and firmware.

Therefore, computers are less expensive for businesses and easier to monitor, maintain, update, upgrade,

and repair.

• Intel Active Management Technology (Intel AMT)

With specific Intel platform capabilities and third-party management and security applications, Intel Active

Management Technology enables IT administrators or managed service providers to easily and remotely

discover, repair, and protect their networked computing assets.

• Intel Rapid Storage Technology enterprise (Intel RSTe)

The Intel RSTe configuration utility enables you to configure Redundant Array of Independent Disks (RAID)

for computers with specific Intel chipset system boards. It supports RAID levels 0, 1, 5, and 10 on

computers installed with Serial Advanced Technology Attachment (SATA) devices.

48 P520 Hardware Maintenance Manual

• Preboot Execution Environment (PXE)

Preboot Execution Environment enables you to start computers using a network interface. This manner is

independent of starting computers from data storage devices (such as the hard disk drive) or installed

operating systems.

• System Management (SM) basic input/output system (BIOS) and SM software

The SMBIOS specification defines data structures and access methods in a BIOS. Therefore, a user or an

application can store and retrieve information specific about the computer in question.

• Wake on LAN (WOL)

Wake on LAN is an Ethernet computer networking standard that allows a computer to be turned on or

woken up by a network message. The message is usually sent by a program running on another computer

on the same local area network.

• Windows Management Instrumentation (WMI)

Windows Management Instrumentation is a set of extensions to the Windows Driver Model. It provides an

operating system interface through which instrumented components provide information and notification.

Security features

• Ability to enable and disable a device

• Ability to enable and disable USB connectors individually

• Antivirus program

• BIOS passwords and Windows accounts to deter unauthorized use of your computer

• Computrace Agent software embedded in firmware

• Cover presence switch (also called intrusion switch)

• Finger authentication (available on some models)

• Firewalls

• Intel BIOS guard

• Smart USB Protection function

• Startup sequence control

• Startup without a keyboard or mouse

• Support for a key lock on the computer cover (available on some models)

• Support for a Kensington-style cable lock

• Trusted Platform Module (TPM)

Preinstalled operating system

Your computer is preinstalled with the Windows 10 operating system. Additional operating systems might be

identified by Lenovo as compatible with your computer. To determine if an operating system has been

certified or tested for compatibility, check the Web site of the operating system provider.

Computer specifications

This section lists the physical specifications for your computer.

Dimensions

• Width: 165 mm (6.50 inches)

• Height: 440 mm (17.32 inches)

• Depth: 460 mm (18.11 inches)

Chapter 2.Product overview 49

Weight

Maximum configuration as shipped: 24 kg (52.91 lb)

Environment

• Air temperature:

Operating: From 10°C (50°F) to 35°C (95°F)

Storage in original shipping package: From -40°C (-40°F) to 60°C (140°F)

Storage without package: From -10°C (14°F) to 60°C (140°F)

• Humidity:

Operating: 10%–80% (non-condensing)

Storage: 10%–90% (non-condensing)

• Altitude:

Operating: From -15.2 m (-50 ft) to 3048 m (10 000 ft)

Storage: From -15.2 m (-50 ft) to 10 668 m (35 000 ft)

Electrical input

• Input voltage: From 100 V ac to 240 V ac

• Input frequency: 50/60 Hz

Programs

This section provides information about the programs on your computer.

Accessing a program on your computer

To access a program on your computer, do one of the following:

• From Windows Search:

1. Type the program name into the search box next to the Start button.

2. In the search results, click the name of the desired program to launch the program.

• From the Start menu or Control Panel:

1. Click the Start button to open the Start menu. Then, click the name of the desired program to launch

the program.

2. If the program name is not displayed on the Start menu, access the program from Control Panel.

a. Click the Start button to open the Start menu.

b. Click Windows System ➙ Control Panel.

c. View Control Panel by Large icons or Small icons, and then click the name of the desired program

to launch the program.

An introduction to Lenovo programs

This section provides information about the major Lenovo programs available on your operating system.

Note: Depending on your computer model, some of the following programs might not be available.

50 P520 Hardware Maintenance Manual

• The Vantage app

The preinstalled Vantage app is a customized one-stop solution to help you maintain your computer with

automated updates and fixes, configure hardware settings, and get personalized support.

To access the Vantage app, type Vantage in the search box.

The Vantage app enables you to:

– Know the device status easily and customize device settings.

– Download and install UEFI BIOS, firmware and driver updates to keep your computer up-to-date.

– Monitor your computer health, and secure your computer against outside threats.

– Scan your computer hardware and diagnose hardware problems.

– Look up warranty status (online).

– Access User Guide and helpful articles.

Notes:

– The available features vary depending on the computer model.

– The Vantage app makes periodic updates of the features to keep improving your experience with your

computer. The description of features might be different from that on your actual user interface.

Chapter 2.Product overview 51

52 P520 Hardware Maintenance Manual

Chapter 3. Using your computer

This chapter provides information to help you use the various features provided by your computer.

Registering your computer

When you register your computer with Lenovo, you enter required information into a Lenovo database. The

information enables Lenovo to contact you when there is a recall or other severe problem and provide

quicker service when you call Lenovo for help. In addition, some locations offer extended privileges and

services to registered users.

To register your computer with Lenovo, go to https://support.lenovo.com/productregistration and follow the

instructions on the screen.

Setting the computer volume

To set the computer volume, do the following:

1. Click the volume icon in the Windows notification area on the taskbar.

Note: If the volume icon is not displayed in the Windows notification area, add the icon to the

notification area. See the Windows help system.

2. Follow the instructions on the screen and the hover text to adjust the volume, mute the speaker, or

unmute the speaker.

Using a disc

This section provides instructions on how to use a disc and the optical drive.

Guidelines about using the optical drive

When using the optical drive, follow these guidelines:

• Do not place the computer in a location where the drive is exposed to any of the following conditions:

– High temperature

– High humidity

– Excessive dust

– Excessive vibration or sudden shock

– An inclined surface

– Direct sunlight

• Do not insert any object other than a disc into the drive.

• Do not insert damaged discs into the drive. Warped, scratched, or dirty discs can damage the drive.

• Before moving the computer, remove the disc from the drive.

Handling and storing a disc

When handling and storing a disc, follow these guidelines:

• Hold the disc by its edges. Do not touch the surface of the side that is not labeled.

• To remove dust or fingerprints, wipe the disc with a clean, soft cloth from the center to the outside. Wiping

the disc in a circular direction might cause loss of data.

• Do not write or stick paper on the disc.

• Do not scratch or mark the disc.

• Do not place or store the disc in direct sunlight.

• Do not use benzene, thinners, or other cleaners to clean the disc.

• Do not drop or bend the disc.

Playing and removing a disc

To play a disc, do the following:

1. With the computer on, press the eject/close button on the front of the optical drive. The tray slides out of

the drive.

2. Insert a disc into the tray. Some optical drive has a snap hub in the center of the tray. If your drive has a

snap hub, support the tray with one hand and then push the center of the disc until it snaps into place.

3. Press the eject/close button again or gently push the tray forward to close the tray. The disc player

program starts automatically. For more information, refer to the help system of the disc player program.

To remove a disc from the optical drive, do the following:

1. With the computer on, press the eject/close button on the front of the optical drive. The tray slides out of

the drive.

2. Carefully remove the disc from the tray.

3. Press the eject/close button again or gently push the tray forward to close the tray.

Note: If the tray does not slide out of the drive when you press the eject/close button, turn off your

computer. Then, insert a straightened paper clip into the emergency-eject hole adjacent to the eject/close

button. Use the emergency eject only in an emergency.

Recording a disc

If your optical drive supports recording, you can record a disc.

Recording a disc using Windows tools

To record a disc using Windows tools, do one of the following:

• Burn a disc using the AutoPlay window.

1. Ensure that the disc is played automatically.

a. Click the Start button to open the Start menu.

b. Click Settings ➙ Devices ➙ AutoPlay.

c. Select or turn on Use AutoPlay for all media and devices.

2. Insert a recordable disc into the optical drive that supports recording. The AutoPlay window opens.

3. Follow the instructions on the screen.

• Burn a disc using Windows Media® Player.

1. Insert a recordable disc into the optical drive that supports recording.

2. Open Windows Media Player. See “Accessing a program on your computer” on page 50.

3. Follow the instructions on the screen.

• Burn a disc from an ISO file.

54 P520 Hardware Maintenance Manual

1. Insert a recordable disc into the optical drive that supports recording.

2. Double-click the ISO file.

3. Follow the instructions on the screen.

Recording a disc using preinstalled programs

To record a disc using preinstalled programs, do the following:

1. Insert a recordable disc into the optical drive that supports recording.

2. Open the PowerDVD Create, PowerProducer, or Power2Go program. See “Accessing a program on

your computer” on page 50.

3. Follow the instructions on the screen.

Connecting to a network

This section provides instructions on how to connect to a network.

Connecting to an Ethernet LAN

You can connect your computer to an Ethernet LAN by connecting an Ethernet cable to the Ethernet

connector.

DANGER

To avoid the risk of electrical shock, do not connect the telephone cable to the Ethernet connector.

Connecting to a wireless LAN

You can connect your computer to a wireless LAN without the use of an Ethernet cable but by means of

radio waves only.

Note: The wireless LAN feature is available only on some models.

To establish a wireless-LAN connection, do the following:

1. Ensure that a wireless LAN is available and the wireless LAN feature on your computer is working.

2. Click the wireless-network-connection-status icon in the Windows notification area to display available

wireless networks.

Note: If the wireless-network-connection-status icon is not displayed in the Windows notification area,

add the icon to the notification area. See the Windows help system.

3. Click a wireless LAN, and then click Connect to connect your computer to it. Provide required

information if needed.

Connecting to a Bluetooth-enabled device

Bluetooth is a short-range wireless communications technology. Use Bluetooth to establish a wireless

connection between your computer and another Bluetooth-enabled device within a distance of about 10 m

(32.8 ft).

Note: The Bluetooth feature is available only on some models.

To connect to a Bluetooth-enabled device, do the following:

1. Turn on the Bluetooth feature of your computer. Ensure that the Bluetooth-enabled device is located

within a distance of about 10 m (32.8 ft) from your computer.

Chapter 3.Using your computer 55

2. Click the Bluetooth icon in the Windows notification area on the taskbar. Then, click Add a Device and

follow the instructions on the screen.

Note: If the Bluetooth icon is not displayed in the Windows notification area, add the icon to the

notification area. See the Windows help system.

56 P520 Hardware Maintenance Manual

Chapter 4. You and your computer

This chapter provides information about accessibility, ergonomic, and cleaning and maintenance.

Arranging your workspace

Arrange your workspace to suit your needs and the kind of work you do. This section provides information

about the factors that affect the way you arrange your workspace.

Glare and lighting

Position the monitor to minimize glare and reflections from overhead lights, windows, and other light

sources. Reflected light from shiny surfaces can cause annoying reflections on your screen. When possible,

place the monitor at right angles to windows and other light sources. If necessary, reduce overhead lighting

by turning off lights or using lower wattage bulbs. If you install the monitor near a window, use curtains or

blinds to block the sunlight. You can adjust the brightness and contrast controls on the monitor as the room

lighting changes throughout the day.

Where it is impossible to avoid reflections or to adjust the lighting, an antiglare filter placed over the screen

might be helpful. However, these filters might affect the clarity of the image on the screen; try them only after

you have exhausted other methods of reducing glare.

Air circulation

Your computer produces heat. The computer has a fan that pulls in fresh air and forces out hot air through

the air vents. Blocking the air vents can cause overheating, which might result in a malfunction or damage.

Position the computer so that nothing blocks the air vents; usually, 51 mm (2 inches) of air space is sufficient.

Ensure that the vented air is not blowing on people.

Electrical outlet locations and cable lengths

The following factors might determine the final placement of your computer:

• Locations of electrical outlets

• Length of power cords or power adapters

• Length of the cables that are connected to other devices

For more information about power cords or power adapters, see “Power cords and power adapters” on page

Comfort

Although no single working position is ideal for everyone, here are a few guidelines to help you find a position

that suits you best. The following figure sets an example for your reference.

• Screen position: Keep the screen at a comfortable viewing distance, usually 51–61 cm (20–24 inches).

Then, adjust the screen so that the top of the screen is at or slightly below eye level and you can view it

without twisting your body.

• Chair position: Use a chair that gives you good back support and seat height adjustment. Use chair

adjustments to best suit your desired posture.

• Head position: Keep your head and neck in a comfortable and neutral (vertical or upright) position.

• Arm and hand positions: Keep your forearms, wrists, and hands in a relaxed and neutral (horizontal)

position. Type with a soft touch without pounding the keys.

• Leg position: Keep your thighs parallel to the floor and your feet flat on the floor or on a footrest.

Make minor modifications in your working posture to deter the onset of discomfort caused by long periods of

working in the same position. Frequent short breaks from your work also help to prevent minor discomfort

associated with your working posture.

Accessibility information

Lenovo is committed to providing users who have hearing, vision, and mobility limitations with greater

access to information and technology. You can get the most up-to-date accessibility information from

https://www.lenovo.com/accessibility.

If you need additional support with the accessibility features, go to https://pcsupport.lenovo.com/

supportphonelist to find the support phone numbers for your country or region.

Cleaning your computer

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1. Properly remove or install your computer cover.

See Chapter 9 “Hardware removal and installation” on page 99.

CAUTION:

Remove any media from the drives and turn off all connected devices and the computer. Then,

disconnect all power cords from electrical outlets and disconnect all cables that are connected to the

computer.

It is a good practice to clean your computer periodically to protect the surfaces and ensure trouble-free

operation. Use only mild cleaning solutions and a damp cloth to clean the painted surfaces of the computer.

Dust buildup compounds problems associated with glare, so remember to clean the screen periodically.

Wipe the screen surface gently with a soft, dry cloth, or blow on the screen to remove grit and other loose

particles. Depending on the type of the screen, moisten a soft, lint-free cloth with an LCD cleaner or liquid

glass cleaner and then wipe the screen surface.

58 P520 Hardware Maintenance Manual

Maintenance

With appropriate care and maintenance, your computer will serve you reliably. This section provides

instructions on how to maintain your computer so that it can keep working in better condition.

Basic maintenance tips

Here are some basic points about keeping your computer functioning properly:

• Keep your computer in a clean, dry environment. Ensure that the computer rests on a flat, steady surface.

• Do not cover any of air vents. These air vents provide airflow to keep your computer from overheating.

• Keep food and drinks away from all parts of your computer. Food particles and spills might make the

keyboard and mouse stick and unusable.

• Do not get the power switches or other controls wet. Moisture can damage these parts and cause an

electrical hazard.

• Always disconnect a power cord by grasping the plug instead of the cord.

Good maintenance practices

By performing a few good maintenance practices, you can maintain good computer performance, protect

your data, and be prepared in case of a computer failure.

• Empty your recycle bin on a regular basis.

• Use the disk defragmentation or disk optimization feature of your operating system occasionally to

prevent performance problems caused by an excessive number of fragmented files.

• Clean out your Inbox, Sent Items, and Deleted Items folders in your e-mail application on a regular basis.

• Back up critical data regularly on removable media memory, such as discs and USB storage devices, and

store the removable media in a safe location. The frequency of making backup copies depends on how

critical the data is to you or your business.

• Back up your data on the storage drive regularly. See “Recovery information” on page 89.

• Keep your computer software, device drivers, and operating system up-to-date. See “Keeping your

computer current” on page 59.

• Keep a log book. Entries might include major software or hardware changes, device-driver updates,

intermittent problems and what you did to resolve them, and other issues you might have experienced.

The cause of a problem might be change in hardware, change in software, or any other actions that might

have taken place. A log book can help you or a Lenovo technician determines the cause of a problem.

• Create Product Recovery discs. See “Recovery information” on page 89 for more information about using

Product Recovery discs to restore the hard disk drive to the factory-default settings.

Keeping your computer current

In most cases, it is a good practice to have the most up-to-date operating system update patches, software

programs, and device drivers. This section provides instructions on how to get the latest updates for your

computer.

Getting the latest system updates

To get the latest system updates for your computer, ensure that your computer is connected to the Internet

and do one of the following:

• Open the Vantage app to check the available update packages. If the latest update package is available,

follow the on-screen instructions to download and install the package.

Chapter 4.You and your computer 59

To open the Vantage app, see “Accessing a program on your computer” on page 50.

• Use Windows Update to get the system updates, such as security fixes, new versions of Windows

components, and device driver updates.

1. Click the Start button to open the Start menu.

2. Click Settings ➙ Update & Security ➙ Windows Update.

3. Follow the instructions on the screen.

Note: The device drivers provided by Windows Update might not be tested by Lenovo. It is recommended

that you get device drivers by using Lenovo programs or from the Lenovo Web site at https://

support.lenovo.com.

Moving your computer

Before moving your computer, take the following precautions:

1. Back up your data on the storage drive. See “Good maintenance practices” on page 59.

2. Remove any media from the drives and turn off all connected devices and the computer. Then,

disconnect all power cords from electrical outlets and disconnect all cables that are connected to the

computer.

3. If you saved the original shipping cartons and packing materials, use them to pack the units. If you are

using different cartons, cushion the units to avoid damage.

Moving your computer to another country or region

When you move your computer to another country or region, you must take local electrical standards into

consideration. If the local electrical outlet style is different from the type you are using, use either an electrical

plug adapter or a new power cord. To purchase such items, contact the Lenovo Customer Support Center.

For a list of Lenovo Support phone numbers, go to https://pcsupport.lenovo.com/supportphonelist. If you

cannot find the support telephone number for your country or region, contact your Lenovo reseller.

60 P520 Hardware Maintenance Manual

Chapter 5. Security

This chapter provides information about how to protect your computer from unauthorized use.

Locking your computer

This section provides instructions on how to lock your computer with the locking devices to keep your

computer safe.

Locking the computer cover

Locking the computer cover helps prevent unauthorized people from gaining access to the inside of your

computer. Your computer might come with a key lock that is built into the computer cover. The keys for the

key lock are attached to the rear of the machine. For security, store the keys in a secure place when you are

not using them. Lenovo does not accept responsibility for any loss of keys.

Note: The key lock and keys are available only on some models.

Figure 11. Key lock

Attaching a Kensington-style cable lock

You can use a Kensington-style cable lock to secure your computer to a desk, table, or other non-permanent

fixture. The cable lock attaches to the security-lock slot at the rear of your computer. Depending on the type

selected, the cable lock can be operated with a key or combination. You can order such a cable lock directly

from Lenovo by searching for Kensington at:

http://www.lenovo.com/support

Figure 12. Kensington-style cable lock

Viewing and changing security settings in the Setup Utility program

To view and change security settings in the Setup Utility program, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Security.

3. Follow the instructions on the right side of the screen to view and change security settings. You can refer

to “Using the Setup Utility program” on page 67 to get basic information about some major security

settings.

4. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings). Then, select Yes in the window displayed, and press Enter.

Using passwords and Windows accounts

You can use BIOS passwords and Windows accounts to prevent unauthorized access to your computer and

data. To use the BIOS passwords or the Windows accounts, do the following:

62 P520 Hardware Maintenance Manual

• To use BIOS passwords, see “Using BIOS passwords” on page 69.

• To use Windows accounts, do the following:

1. Click the Start button to open the Start menu.

2. Click Settings ➙ Accounts.

3. Follow the instructions on the screen.

Using fingerprint authentication

If your keyboard has a fingerprint reader, you can use fingerprint authentication to replace passwords for

simple and secure user access. To use fingerprint authentication, first enroll your fingerprints and associate

them with your passwords (such as the power-on password, hard disk password, and Windows password).

Use the fingerprint reader and the fingerprint program to complete this procedure.

To use fingerprint authentication, use the fingerprint tool provided by the Windows operating system. Click

the Start button to open the Start menu, and then click Settings ➙ Accounts ➙ Sign-in options. Follow the

instructions on the screen.

To use the fingerprint reader, refer to the documentation shipped with the fingerprint keyboard or located on

the Lenovo Support Web site at https://pcsupport.lenovo.com/solutions/pd014444.

Using the cover presence switch

The cover presence switch prevents your computer from logging in to the operating system when the

computer cover is not properly installed or closed.

To use the cover presence switch, enable the cover-presence-switch connector on the system board first. To

achieve this, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Security ➙ Chassis Intrusion Detection and press Enter.

3. Select Enabled and press Enter.

4. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings), select Yes in the window displayed, and press Enter. The cover-presence-switch connector on

the system board is enabled.

The cover presence switch starts functioning. If the switch detects that the computer cover is not correctly

installed or closed, an error message is displayed when you turn on the computer. To fix the error and log in

to the operating system, do the following:

1. Properly remove or install your computer cover. See Chapter 9 “Hardware removal and installation” on

page 99.

2. Start and then exit the Setup Utility program. See “Starting the Setup Utility program” on page 67 and

“Exiting the Setup Utility program” on page 72.

Using firewalls

A firewall can be hardware, software, or a combination of both depending on the level of security required.

Firewalls work on a set of rules to determine which inbound and outbound connections are authorized. If

your computer is preinstalled with a firewall program, it helps protect against computer Internet security

threats, unauthorized access, intrusions, and Internet attacks. It also protects your privacy. For more

information about how to use the firewall program, refer to the help system of your firewall program.

Chapter 5.Security 63

To use Windows Firewall, do the following:

1. Click the Start button to open the Start menu.

2. Click Windows System ➙ Control Panel.

3. View Control Panel by Large icons or Small icons, and then click Windows Defender Firewall.

4. Follow the instructions on the screen.

Protecting data against viruses

Your computer is preinstalled with an antivirus program to help you guard against, detect, and eliminate

viruses.

Lenovo provides a full version of antivirus software on your computer with a free 30-day subscription. After

30 days, you must renew the license to continue receiving the antivirus software updates.

Note: Virus definition files must be kept up-to-date to guard against new viruses.

For more information about how to use your antivirus software, refer to the help system of your antivirus

software.

Using the Smart USB Protection function

The Smart USB Protection function is a security function that helps prevent data from being copied from the

computer to USB storage devices connected to the computer. You can set the Smart USB Protection

function to one of the following modes:

• Disabled (default setting): You can use the USB storage devices without limitation.

• Read Only: You cannot copy data from the computer to the USB storage devices. However, you can

access or modify data on the USB storage devices.

• No Access: You cannot access the USB storage devices from the computer.

To configure the Smart USB Protection function, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Security ➙ Smart USB Protection and press Enter.

3. Select the desired setting and press Enter.

4. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings). Then, select Yes in the window displayed, and press Enter.

Computrace Agent software embedded in firmware

The Computrace Agent software is an IT asset management and computer theft recovery solution. The

software detects if changes have been made on the computer, such as hardware, software, or the computer

call-in location. You might have to purchase a subscription to activate the Computrace Agent software.

Trusted Platform Module (TPM)

TPM is a secure cryptoprocessor that stores cryptographic keys, which in turn protects information stored in

your computer.

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Intel BIOS guard

The BIOS guard module cryptographically verifies all the BIOS updates to the system BIOS flash. Therefore,

the malware is blocked from attacking the BIOS.

Chapter 5.Security 65

66 P520 Hardware Maintenance Manual

Chapter 6. Advanced configuration

This chapter provides information to help you further configure the computer.

Using the Setup Utility program

The Setup Utility program is used to view and change the configuration settings of your computer. This

section provides information about only the major configuration settings available in the program.

Note: The operating system settings might override any similar settings in the Setup Utility program.

Starting the Setup Utility program

To start the Setup Utility program, do the following:

1. Turn on or restart your computer.

2. Before the operating system starts up, repeatedly press and release F1 or Fn+F1 (depending on the

keyboard settings). Based on the Setup Utility display mode setting, one of the following situations

occurs:

• Text mode: The Setup Utility program opens.

• Graphic mode (available on some models): The start screen is displayed. Then, select Setup and

press Enter to open the Setup Utility program.

Note: If a BIOS password has been set, the Setup Utility program will not open until you enter the

correct password. For more information, see “Using BIOS passwords” on page 69.

To view and change the configuration settings, follow the instructions on the screen.

Changing the display mode of the Setup Utility program

You can use the Setup Utility program in the graphic mode or the text mode according to your needs.

• Text mode: The keys on the keyboard used to perform various tasks are displayed at the bottom of the

screen.

Note: The Serial Port Console Redirection item is available only in the text mode.

• Graphic mode (available on some models): In addition to the keyboard, you also can use the mouse to

make selections.

To change the display mode of the Setup Utility program, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. From the main interface, select Setup mode select and press Enter.

3. Select Graphic or Text and press Enter.

4. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings), select Yes in the window displayed, and press Enter.

Changing the display language of the Setup Utility program

The Setup Utility program supports three display languages: English, French, and simplified Chinese.

To change the display language of the Setup Utility program, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. From the main interface, locate System Language and press Enter.

3. Select the display language according to your needs.

Enabling or disabling a device

This section provides information about how to enable or disable user access to hardware devices (such as

USB connectors or storage drives).

To enable or disable a device, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Devices.

3. Select the device you want to enable or disable and press Enter.

4. Select the desired setting and press Enter.

5. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings). Then, select Yes in the window displayed, and press Enter.

Enabling or disabling the automatic power-on of your computer

The Automatic Power On item in the Setup Utility program provides various options for you to make your

computer start up automatically.

To enable or disable the Automatic Power On features, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Power ➙ Automatic Power On and press Enter.

3. Select the feature you want to enable or disable and press Enter.

4. Select the desired setting and press Enter.

5. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings). Then, select Yes in the window displayed, and press Enter.

Enabling or disabling the ErP LPS compliance mode

Lenovo computers meet the eco-design requirements of the ErP Lot 3 regulation. For more information, go

to:

https://www.lenovo.com/ecodeclaration

You can enable the ErP LPS compliance mode in the Setup Utility program to reduce the consumption of

electricity when your computer is off or in sleep mode.

To enable or disable the ErP LPS compliance mode, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Power ➙ Enhanced Power Saving Mode and press Enter.

3. Select Enabled or Disabled depending on your needs, and then press Enter. If you select Enabled, you

also need to disable the Wake on LAN feature. See “Enabling or disabling the automatic power-on of

your computer” on page 68.

4. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings). Then, select Yes in the window displayed, and press Enter.

When the ErP LPS compliance mode is enabled, you can wake up your computer by doing one of the

following:

68 P520 Hardware Maintenance Manual

• Press the power button.

• Enable the Wake Up on Alarm feature to make your computer wake up at a set time. See “Enabling or

disabling the automatic power-on of your computer” on page 68.

• Enable the After Power Loss feature to make your computer wake up when the power supply resumes

after a sudden loss of electricity.

To enable the After Power Loss feature, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Power ➙ After Power Loss and press Enter.

3. Select Power On and press Enter.

4. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings). Then, select Yes in the window displayed, and press Enter.

Enabling or disabling the configuration change detection

With the configuration-change detection enabled, if the POST detects configuration changes of some

hardware devices (such as storage drives or memory modules), an error message is displayed.

To enable or disable the configuration change detection, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Security ➙ Configuration Change Detection and press Enter.

3. Select the desired setting and press Enter.

4. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings). Then, select Yes in the window displayed, and press Enter.

To bypass the error message and log in to the operating system, do one of the following:

• Press F2 or Fn+F2 (depending on the keyboard settings).

• Start and then exit the Setup Utility program. See “Starting the Setup Utility program” on page 67 and

“Exiting the Setup Utility program” on page 72.

Changing the BIOS settings before installing a new operating system

BIOS settings vary by operating system. Change the BIOS settings before installing a new operating system.

To change the BIOS settings, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. From the main interface, select Exit ➙ OS Optimized Defaults and press Enter.

3. Depending on the operating system to be installed, do one of the following:

• To install the Windows 10 (64-bit) operating system, select Enabled and press Enter.

• To install an operating system other than Windows 10 (64-bit), select Disabled and press Enter.

4. Select Yes in the window displayed and press Enter to confirm your selection.

5. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings). Then, select Yes in the window displayed, and press Enter.

Using BIOS passwords

By using the Setup Utility program, you can set passwords to prevent unauthorized access to your computer

and data.

Chapter 6.Advanced configuration 69

You do not have to set any passwords to use your computer. However, using passwords improves computer

security. If you decide to set any passwords, read the following topics.

Password types

The following types of passwords are available in the Setup Utility program:

• Power-on password

When a power-on password is set, you are prompted to enter a valid password each time the computer is

turned on. The computer cannot be used until the valid password is entered.

• Administrator password

Setting an administrator password deters unauthorized users from changing configuration settings. If you

are responsible for maintaining the configuration settings of several computers, you might want to set an

administrator password.

When an administrator password is set, you are prompted to enter a valid password each time you try to

access the Setup Utility program. The Setup Utility program cannot be accessed until a valid password is

entered.

If both the power-on password and administrator password are set, you can enter either password.

However, you must use your administrator password to change any configuration settings.

• Hard disk password

Setting a hard disk password prevents unauthorized access to the data on the internal storage drive (such

as a hard disk drive). When a hard disk password is set, you are prompted to enter a valid password each

time you try to access the storage drive.

Notes:

– Even if the storage drive is removed from one computer and installed in another, the hard-disk

password is still valid.

– If the hard disk password is forgotten, there is no way to reset the password or recover data from the

storage drive.

Password considerations

A password can be any combination of up to 64 alphabetic and numeric characters. For security reasons, it

is recommended to use a strong password that cannot be easily compromised.

Note: The Setup Utility program passwords are case-sensitive.

To set a strong password, consider the following guidelines:

• Have at least eight characters in length

• Contain at least one alphabetic character and one numeric character

• Not be your name or your user name

• Not be a common word or a common name

• Be significantly different from your previous passwords

Setting, changing, or deleting a password

To set, change, or delete a password, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Security.

3. Depending on the password type, select Set Power-On Password, Set Administrator Password, or

Hard Disk Password and press Enter.

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4. Follow the instructions on the right side of the screen to set, change, or delete a password.

Note: A password can be any combination of up to 64 alphabetic and numeric characters. For more

information, see “Password considerations” on page 70.

5. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings). Then, select Yes in the window displayed, and press Enter.

Erasing lost or forgotten passwords (clearing CMOS)

This section provides instructions on how to erase lost or forgotten passwords, such as a user password.

Note: The instructions in this section do not apply to the hard disk password.

To erase a lost or forgotten password, do the following:

1. Remove any media from the drives and turn off all connected devices and the computer. Then,

disconnect all power cords from electrical outlets and disconnect all cables that are connected to the

computer.

2. Remove the computer cover. See Chapter 9 “Hardware removal and installation” on page 99.

3. Locate the Clear Complementary Metal Oxide Semiconductor (CMOS) /Recovery jumper on the system

board. See “Hardware locations” on page 29.

4. Move the jumper from the standard position (pin 1 and pin 2) to the maintenance position (pin 2 and pin

3).

5. Reinstall the computer cover and connect the power cord. See Chapter 9 “Hardware removal and

installation” on page 99.

6. Turn on the computer and leave it on for approximately 10 seconds. Then, turn off the computer by

holding the power button for approximately five seconds.

7. Repeat step 1 and step 2.

8. Move the Clear CMOS /Recovery jumper back to the standard position (pin 1 and pin 2).

9. Reinstall the computer cover and connect the power cord.

10. Turn on the computer and the monitor. When the logo screen is displayed, press F1 or Fn+F1.

11. To prevent data loss, ensure that BIOS settings are restored to an earlier point.

Selecting a startup device

If your computer does not start up from the expected device, you can either change the startup device

sequence or select a temporary startup device.

Changing the startup device sequence permanently

To change the startup device sequence permanently, do the following:

1. Depending on the type of the storage device, do one of the following:

• If the storage device is internal, go to step 2.

• If the storage device is a disc, ensure that your computer is turned on. Then, insert the disc into the

optical drive.

• If the storage device is an external device other than a disc, connect the storage device to the

computer.

2. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

3. Select Startup.

4. Follow the instructions on the right side of the screen to change the startup device sequence.

Chapter 6.Advanced configuration 71

5. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings). Then, select Yes in the window displayed, and press Enter.

Selecting a temporary startup device

Note: Not all discs and storage drives are bootable.

To select a temporary startup device, do the following:

1. Depending on the type of the storage device, do one of the following:

• If the storage device is internal, go to step 2.

• If the storage device is a disc, ensure that your computer is turned on. Then, insert the disc into the

optical drive.

• If the storage device is an external device other than a disc, connect the storage device to the

computer.

2. Turn on or restart the computer. Before Windows starts up, repeatedly press and release F12 or Fn+F12

(depending on the keyboard settings) until Startup Device Menu is displayed.

3. Select the desired storage device and press Enter. The computer then starts up from the device you

select.

If you want to select a permanent startup device, select Enter Setup on Startup Device Menu and press

Enter to start the Setup Utility program. For more information about how to select a permanent startup

device, see “Changing the startup device sequence permanently” on page 71.

Changing the fan speed level

The Fan Control Stepping item enables you to adjust the thermal performance of your computer. From level 1

to level 7, a higher fan speed level indicates better thermal performance with more noise.

To change the fan speed level, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Power ➙ Fan Control Stepping and press Enter.

3. Select a fan speed level and press Enter.

4. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings), select Yes in the window displayed, and press Enter.

Exiting the Setup Utility program

To exit the Setup Utility program, do one of the following:

• If you want to save the new settings, press F10 or Fn+F10 (depending on the keyboard settings). Then,

select Yes in the window displayed and press Enter.

• If you do not want to save the new settings, select Exit ➙ Discard Changes and Exit and press Enter.

Then, select Yes in the window displayed and press Enter.

Updating and recovering the BIOS

The BIOS is the first program that the computer runs when you turn on the computer. The BIOS initializes the

hardware components and loads the operating system and other programs.

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Updating the BIOS

When you install a new program, hardware device, or device driver, you might be informed to update the

BIOS. You can update the BIOS from your operating system or a flash update disc (available only on some

models).

To update the BIOS, do the following:

1. Go to https://support.lenovo.com.

2. To update the BIOS from your operating system, download the flash BIOS update driver according to

your operating system version. To update the BIOS from a flash update disc, download the ISO image

version (used to create a flash update disc). Then, download the installation instructions for the flash

BIOS update driver.

3. Print the installation instructions you download and follow the instructions to update the BIOS.

Note: If you want to update the BIOS from a flash update disc, the installation instructions might not

provide the instructions on how to record the update disc. See “Recording a disc” on page 54.

Recovering from a BIOS update failure

To recover from a BIOS update failure, do the following:

1. Remove any media from the drives and turn off all connected devices and the computer. Then,

disconnect all power cords from electrical outlets and disconnect all cables that are connected to the

computer.

2. Remove the computer cover. See Chapter 9 “Hardware removal and installation” on page 99.

3. Locate the Clear CMOS /Recovery jumper on the system board. See “Hardware locations” on page 29.

4. Remove any parts and cables that impede your access to the Clear CMOS /Recovery jumper.

5. Move the jumper from the standard position (pin 1 and pin 2) to the maintenance position (pin 2 and pin

3).

6. Reinstall the parts and cables that were removed.

7. Reinstall the computer cover and reconnect any cables that were disconnected. See Chapter 9

“Hardware removal and installation” on page 99.

8. Turn on the computer and insert the BIOS update disc into the optical drive. Wait a few minutes. The

recovery process begins. After the recovery process is completed, your computer will shut down

automatically.

Note: If the computer does not start up from the disc, select the disc as the startup device. See

“Selecting a temporary startup device” on page 72.

9. Repeat steps 1–4.

10. Move the Clear CMOS /Recovery jumper back to the standard position (pin 1 and pin 2).

11. Repeat step 6 and step 7.

12. Turn on the computer and the monitor. When the logo screen is displayed, press F1 or Fn+F1.

13. To prevent data loss, ensure that BIOS settings are restored to an earlier point.

BIOS level

An incorrect BIOS level can cause false errors and unnecessary FRU replacement. Use the following

information to determine the currently installed BIOS level, the latest BIOS level available, and where to

obtain the latest BIOS level.

• To determine the currently installed BIOS level, start the Setup Utility program and view the BIOS

Revision Level on the Main page.

Chapter 6.Advanced configuration 73

• Sources for obtaining the latest BIOS level available

– Lenovo support Web site: http://www.lenovo.com/support

– Lenovo Customer Support Center

– Levels 1 and 2 Support

To update the BIOS, see “Updating and recovering the BIOS” on page 72.

Note: BIOS settings vary by operating system. Change the BIOS settings before installing a new operating

system. See “Changing the BIOS settings before installing a new operating system” on page 69.

Configuring RAID

This section provides information about storage drive requirements for RAID levels, and instructions on how

to configure RAID for your computer. Depending on your computer model and configuration, you can

configure RAID using one of the following utilities:

• Intel Rapid Storage Technology enterprise (RSTe) configuration utility

• AVAGO MegaRAID Configuration Utility

• Intel Virtual RAID on CPU configuration utility

An Introduction to RAID

RAID is a technology that provides increased storage functions and reliability through redundancy.

When a group of independent physical storage drives is set up to use RAID technology, they are in a RAID

array. This array distributes data across multiple storage drives, but the array appears to the host computer

as one single storage unit. Creating and using RAID arrays provides high performance, such as the expedited

I/O performance, because several drives can be accessed simultaneously.

RAID drive groups configured according to certain RAID levels also improve data storage reliability and fault

tolerance compared with single-drive storage systems. Data loss resulting from a drive failure can be

prevented by reconstructing missing data from the remaining drives.

Note: For RAID 0, the missing data resulting from a drive failure cannot be reconstructed.

Configuring RAID with Intel RSTe

If your computer comes with the Intel RSTe configuration utility, you can follow the sections below to

configure RAID with Intel RSTe.

Storage drive requirements for RAID levels

Your computer supports the following RAID levels:

• RAID 0: striped disk array

– Consists of at least two SATA storage drives

– Supported strip size: 4 KB, 8 KB, 16 KB, 32 KB, 64 KB, or 128 KB

– Better performance without fault tolerance

• RAID 1: mirrored disk array

– Consists of two SATA storage drives

– Improved reading performance and 100% redundancy

• RAID 10: striped and mirrored disk array (a combination of RAID 0 and RAID 1)

– Consists of four SATA storage drives

74 P520 Hardware Maintenance Manual

– Supported strip size: 4 KB, 8 KB, 16 KB, 32 KB, or 64 KB

• RAID 5: block-level striped disk array with distributed parity

– Consists of at least three SATA storage drives

– Supported strip size: 16 KB, 32 KB, 64 KB, or 128 KB

– Better performance and fault tolerance

Creating a RAID volume

Attention: All the existing data stored on the selected drives will be erased while the RAID volume is being

created.

To create a RAID volume, do the following:

1. Enable RAID by doing the following:

a. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

b. Select Devices ➙ PCH SATA Configuration and press Enter.

c. Select Configure SATA as and press Enter. Then, select RAID and press Enter.

d. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the

keyboard settings), select Yes in the window displayed, and press Enter.

2. Start the Setup Utility program again. See “Starting the Setup Utility program” on page 67.

3. Select Advanced ➙ Intel RSTe SATA Controller and press Enter.

4. Select Create RAID Volume and press Enter. The Create RAID Volume window is displayed.

5. Select and configure the options one by one.

a. Name: You can use the default name Volume0 or type a preferred name for the RAID volume.

b. RAID Level: You can set the RAID level to one of the following:

• RAID0

• RAID1

• RAID10

• RAID5

Note: Some of the RAID levels might not be displayed because the number of installed SATA

storage drives varies.

c. Select Disks: Select a storage drive and press Enter. Then, select X and press Enter to add it to a

group.

d. Strip Size (if applicable): Select a strip size and press Enter.

e. Capacity: Customize the capacity of the RAID volume. The default RAID volume is the largest value.

6. Select Create Volume and press Enter to create a RAID volume.

7. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings), select Yes in the window displayed, and press Enter.

Viewing the information about a RAID volume

To view the information about a RAID volume, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Advanced ➙ Intel RSTe SATA Controller and press Enter.

3. Select RAID Volumes and press Enter.

4. Select a RAID volume and press Enter to view the detailed information.

Chapter 6.Advanced configuration 75

Deleting a RAID volume

Attention: All the existing data stored on the selected drives will be erased after you delete RAID volumes.

To delete a RAID volume, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Advanced ➙ Intel RSTe SATA Controller and press Enter.

3. Under RAID Volumes, select the RAID volume that you want to delete and press Enter. The RAID

VOLUME INFO window is displayed.

4. Select Delete under Volume Actions and press Enter. When prompted, select Yes and press Enter to

confirm the deletion of the selected RAID volume.

5. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings), select Yes in the window displayed, and press Enter.

Configuring RAID with AVAGO MegaRAID Configuration Utility

To configure RAID with AVAGO MegaRAID Configuration Utility, ensure that:

• An AVAGO MegaRAID adapter is installed in your computer.

• The storage drives used for RAID configuration are connected to the installed AVAGO MegaRAID adapter

instead of the system board.

Storage drive requirements for RAID levels

Your computer supports the following RAID levels:

• RAID 0: striped disk array

– Consists of at least two SATA or Serial Attached SCSI (SAS) storage drives

– Supported strip size: 64 KB, 128 KB, 256 KB, 512 KB, or 1 MB

– Better performance without fault tolerance

• RAID 1: mirrored disk array

– Consists of two or four SATA or SAS storage drives

– Improved read performance and 100% redundancy

• RAID 10: striped and mirrored disk array (a combination of RAID 0 and RAID 1)

– Consists of four SATA or SAS storage drives

– Data being striped across storage drive groups

– Provides both high data transfer rates and complete data redundancy

• RAID 5: block-level striped disk array with distributed parity

– Consists of at least three SATA or SAS storage drives

– Supported strip size: 64 KB, 128 KB, 256 KB, 512 KB, or 1 MB

– Better performance and fault tolerance

– Available only on some models of AVAGO MegaRAID adapters

• RAID 6: block-level striped disk array with dual distributed parity

– Consists of at least four SATA or SAS storage drives

– Supported strip size: 64 KB, 128 KB, 256 KB, 512 KB, or 1 MB

– Better performance and fault tolerance that can stand up to loss of two storage drives

– Available only on some models of AVAGO MegaRAID adapters

76 P520 Hardware Maintenance Manual

Creating a RAID volume

Attention: All the existing data stored on the selected drives will be erased while the RAID volume is being

created.

To create a RAID volume, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Advanced ➙ AVAGO MegaRAID Configuration Utility and press Enter.

3. Select Main Menu and press Enter.

4. Select Configuration Management and press Enter.

5. Select Create Virtual Drive and press Enter.

6. Select and configure the options one by one.

a. Select RAID Level: You can set the RAID level to one of the following:

• RAID0

• RAID1

• RAID5

• RAID6

• RAID10

Note: Some of the RAID levels might not be displayed because the number of installed SATA

storage drives and the model of the AVAGO MegaRAID adapter vary.

b. Select Drives From: Select Unconfigured capacity or Free capacity depending on your needs and

press Enter.

c. Select Drives: Select a storage drive and press Enter. After selecting all storage drives for creating

the RAID volume, select Apply Changes and press Enter. When promoted, select Confirm and

press Enter. Then, select Yes and press Enter to save the storage drive selection. Finally, select OK

and press Enter.

d. Virtual Drive Name: You can type a preferred name for the volume name.

e. Strip Size (if applicable): Select a strip size and press Enter.

7. Select Save Configuration and press Enter. When promoted, select Confirm and press Enter. Then,

select Yes and press Enter to confirm the creation of the RAID volume.

8. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings), select Yes in the window displayed, and press Enter.

Viewing the information about a RAID volume

To view the information about a RAID volume, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Advanced ➙ AVAGO MegaRAID Configuration Utility and press Enter.

3. Select Main Menu and press Enter.

4. Select Virtual Drive Management and press Enter.

5. Select a RAID volume and press Enter to view the detailed information.

Deleting a RAID volume

Attention: All the existing data stored on the selected drives will be erased after you delete RAID volumes.

To delete a RAID volume, do the following:

Chapter 6.Advanced configuration 77

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Advanced ➙ AVAGO MegaRAID Configuration Utility.

3. Select Main Menu and press Enter.

4. Select Virtual Drive Management and press Enter.

5. Select the RAID volume that is not needed and press Enter.

6. Under Operation, select Delete Virtual Drive and press Enter.

7. Select Go and press Enter. When prompted, select Confirm and press Enter. Then, select Yes and

press Enter to delete the RAID volume.

8. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings), select Yes in the window displayed, and press Enter.

Configuring RAID with Intel Virtual RAID on CPU

To configure RAID with the Intel Virtual RAID on CPU configuration utility, ensure that:

• An upgrade key module is connected to the Virtual RAID on CPU (VROC) connector on the system board.

See “Hardware locations” on page 29.

• M.2 solid-state drives are installed in your computer.

Storage drive requirements for RAID levels

Your computer supports the following RAID levels:

• RAID 0: striped disk array

– Consists of at least two M.2 solid-state drives

– Supported strip size: 4 KB, 8 KB, 16 KB, 32 KB, 64 KB, or 128 KB

– Better performance without fault tolerance

• RAID 1: mirrored disk array

– Consists of two M.2 solid-state drives

– Improved reading performance and 100% redundancy

• RAID 10: striped and mirrored disk array (a combination of RAID 0 and RAID 1)

– Consists of four M.2 solid-state drives

– Supported strip size: 4 KB, 8 KB, 16 KB, 32 KB, or 64 KB

• RAID 5: block-level striped disk array with distributed parity

– Consists of at least three M.2 solid-state drives

– Supported strip size: 16 KB, 32 KB, 64 KB, or 128 KB

– Better performance and fault tolerance

– Available only on some models of upgrade key modules

Creating a RAID volume

Attention: All the existing data stored on the selected drives will be erased while the RAID volume is being

created.

To create a RAID volume, do the following:

1. Enable VMD for the selected M.2 solid-state drives by doing the following:

a. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

b. Select Advanced ➙ Intel(R) VMD technology and press Enter.

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c. Select each menu item and press Enter. Then, select Enabled and press Enter.

d. Select an occupied M.2 solid-state drive slot as you need and press Enter. Then, select VMD and

press Enter.

e. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the

keyboard settings), select Yes in the window displayed, and press Enter.

2. Start the Setup Utility program again. See “Starting the Setup Utility program” on page 67.

3. Select Advanced ➙ Intel Virtual RAID on CPU and press Enter.

4. Select All Intel VMD Controllers and press Enter.

5. Select Create Volumes and press Enter.

6. Select and configure the options one by one.

a. Name: You can use the default name Volume0 or type a preferred name for the RAID volume.

b. RAID Level: You can set the RAID level to one of the following:

• RAID0

• RAID1

• RAID10

• RAID5

Note: Some of the RAID levels might not be displayed because the number of installed M.2 solid-

state drives and the model of the upgrade key module vary.

c. Select Disks: Select an M.2 solid-state drive and press Enter. Then, select X and press Enter to add

it to a group.

d. Stripe Size (if applicable): Select a stripe size and press Enter.

e. Capacity: Customize the capacity of the RAID volume. The default RAID volume is the largest value.

7. Select Create Volume and press Enter to create a RAID volume.

8. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings), select Yes in the window displayed, and press Enter.

Viewing the information about a RAID volume

To view the information about a RAID volume, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Advanced ➙ Intel Virtual RAID on CPU and press Enter.

3. Select RAID Volumes and press Enter.

4. Select a RAID volume and press Enter to view the detailed information.

Deleting a RAID volume

Attention: All the existing data stored on the selected drives will be erased after you delete RAID volumes.

To delete a RAID volume, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 67.

2. Select Advanced ➙ Intel Virtual RAID on CPU and press Enter.

3. Select Intel VROC Mananged Volumes and press Enter.

4. Under Volume Actions, select Delete and press Enter.

5. When prompted, select Yes and press Enter to confirm the deletion of the selected RAID volume.

Chapter 6.Advanced configuration 79

6. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard

settings), select Yes in the window displayed, and press Enter.

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Chapter 7. Troubleshooting, diagnostics, and recovery

This chapter provides solutions to resolve your computer problems. Follow the steps in the basic procedure

for resolving computer problems, which helps you make good use of the troubleshooting, diagnostics, and

recovery information.

Basic procedure for resolving computer problems

It is recommended that you use the following procedure to resolve computer problems you are experiencing:

1. Ensure that:

a. The cables for all connected devices are connected correctly and securely.

b. All connected devices that require ac power are connected to properly grounded, functioning

electrical outlets.

c. All connected devices are enabled in the BIOS settings of your computer. See “Enabling or disabling

a device” on page 68.

If these actions do not resolve your problem, continue with the next step.

2. Use an antivirus program to see if your computer has been infected by a virus. If the program detects a

virus, remove the virus. If the antivirus program does not resolve your problem, continue with the next

step.

3. Go to “Troubleshooting” on page 81 and follow the instructions for the type of problem you are

experiencing. If these troubleshooting instructions do not resolve your problem, continue with the next

step.

4. Run the diagnostic program. See “Lenovo diagnostic tools” on page 88. If the diagnostic program does

not resolve your problem, continue with the next step.

5. Recover your operating system. See “Recovery information” on page 89.

6. If none of these actions solve your problem, contact the Lenovo Customer Support Center. For a list of

Lenovo Support phone numbers, go to http://www.lenovo.com/support/phone. For more information

about help, service, and technical assistance, see Chapter 10 “Getting information, help, and service” on

page 201.

Troubleshooting

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

Use the troubleshooting information to find solutions to problems that have definite symptoms.

Startup problems

The computer does not start up when you press the power button.

Solutions:

Ensure that:

• The power cord is correctly connected to the rear of the computer and to a working electrical outlet.

• If your computer has a secondary power switch on the rear of the computer, ensure that it is switched on.

• The power indicator on the front of the computer is on.

• The computer voltage matches the voltage available at the electrical outlet for your country or region.

The operating system fails to start up.

Solution:

Ensure that the startup device sequence set in the Setup Utility program includes the device where the

operating system resides. Usually, the operating system is on the internal storage drive. For more

information, see “Changing the startup device sequence permanently” on page 71.

The computer beeps multiple times before the operating system starts up.

Solution:

Ensure that no keys are stuck.

Audio problems

The audio cannot be heard on the Windows operating system.

Solutions:

• If you are using powered external speakers that have an On/Off control, ensure that:

– The On/Off control is set to the On position.

– The speaker power cable is connected to a properly grounded, functional ac electrical outlet.

• If your external speakers have a volume control, ensure that the volume is not set too low.

• Click the volume icon in the Windows notification area on the taskbar. Ensure that the mute speakers

settings are not selected and none of the volume settings is set too low.

Note: If the volume icon is not displayed in the Windows notification area, add the icon to the notification

area. See the Windows help system.

• For some computers that have a front audio panel, ensure that the volume is not set too low.

• Ensure that your external speakers (and headphones, if used) are connected to the correct audio

connectors on the computer. Most speaker cables are color-coded to match the connectors.

Note: When external-speaker or headphone cables are connected to the audio connectors, the internal

speaker, if present, is disabled. In most cases, if an audio adapter is installed in one of the expansion

slots, the audio function built into the system board is disabled. Therefore, you must use the audio

connectors on the audio adapter.

• Ensure that the program you are running is designed for use on the Windows operating system. If the

program is designed to run in DOS, the program does not use the Windows sound feature. The program

must be configured to use Sound Blaster Pro or Sound Blaster emulation.

• Ensure that the audio device drivers are correctly installed.

The sound comes from one of the external speakers.

Solutions:

• Ensure that the speaker cable is inserted completely into the connector on the computer.

• Right-click the volume icon in the Windows notification area on the taskbar. Then, click Open Volume

Mixer and select the desired speaker. Click the Levels tab and ensure that the Balance settings are set

correctly.

Note: If the volume icon is not displayed in the Windows notification area, add the icon to the notification

area. See the Windows help system.

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CD or DVD problems

A CD or DVD does not work.

Solutions:

• Ensure that the power cable and signal cable are securely connected to the drive.

• Ensure that the disc is inserted correctly, with its label up.

• Ensure that the disc you are using is clean. To remove dust or fingerprints, wipe the disc clean with a soft

cloth from the center to the outside. Wiping a disc in a circular motion might cause loss of data.

• Ensure that the disc you are using is not scratched or damaged. Try inserting another disc that you know

is good. If you cannot read from a known-good disc, you might have a problem with your optical drive or

the cabling to your optical drive.

• If you have multiple CD or DVD drives installed (or a combination of CD and DVD drives), try inserting the

disc into the other drive. In some cases, only one of the drives is connected to the audio subsystem.

A bootable recovery medium, such as the Product Recovery CD, cannot be used to start your

computer.

Solution:

Ensure that the CD or DVD drive is set as the top priority of the Boot Priority Order in the Setup Utility

program. Refer to “Selecting a temporary startup device” on page 72 for information about viewing and

changing the startup sequence.

Note: On some computer models, the startup sequence is permanently set and cannot be changed.

A black screen is displayed instead of the DVD video.

Solutions:

• Restart the DVD player program.

• Try a lower screen resolution or color depth.

• Close any open files, and then restart the computer.

A DVD movie does not play.

Solutions:

• Ensure that the disc surface is clean and not scratched.

• Check the disc or package for regional coding. You might need to purchase a disc with coding for the

region where you are using your computer.

No audio or only an intermittent audio comes out while a DVD movie is playing.

Solutions:

• Check the volume control settings on your computer and on your speakers.

• Ensure that the disc surface is clean and not scratched.

• Check all cable connections to and from the speakers.

• Use the DVD menu for the video to select a different audio track.

The playback is slow or choppy.

Solutions:

• Disable any background programs, such as AntiVirus or Desktop Themes.

Chapter 7.Troubleshooting, diagnostics, and recovery 83

• Ensure that video resolution is lower than 1152 x 864 pixels.

A message indicating invalid disc or no disc found is displayed.

Solutions:

• Ensure that the disc is in the drive with the shiny side of the disc facing down.

• Ensure that video resolution is lower than 1152 x 864 pixels.

• Ensure that the DVD or CD is inserted into an appropriate optical drive. For example, do not insert a DVD

into a CD-only drive.

Intermittent problems

Intermittent problems refer to the problems occur only occasionally and are difficult to repeat.

Solutions:

• Ensure that all cables and cords are securely connected to the computer and attached devices.

• Ensure that when the computer is on, the fan grill is not blocked (there is air flow around the grill), and the

fans are working. If airflow is blocked or the fans are not working, the computer might overheat.

• If Small Computer System Interface (SCSI) devices are installed, ensure that the last external device in

each SCSI chain is terminated correctly. For more information, see your SCSI documentation.

Storage drive problems

Some or all storage drives are missing from the Setup Utility program.

Solutions:

• Ensure that the signal cables and power cables for all the storage drives are connected correctly.

• If the computer is installed with SAS storage drives, ensure that the AVAGO MegaRAID adapter is

correctly connected.

The computer cannot start up from the correct storage drive or the message “No Operating System

Found” is displayed.

Solutions:

• Ensure that the signal cables and power cables for all the storage drives are connected correctly.

• Ensure that the computer starts up from the correct storage drive. Set the storage drive, on which the

operating system resides, as the first startup device in the Setup Utility program. Refer to “Changing the

startup device sequence permanently” on page 71.

Note: In rare cases, the storage drive with the operating system might get corrupted or damaged. If this

problem occurs, replace the storage drive. Refer to Chapter 9 “Hardware removal and installation” on page

99.

Ethernet LAN problems

The computer cannot connect to an Ethernet LAN.

Solutions:

• Connect the cable from the Ethernet connector to the RJ45 connector of the hub.

• Enable the Ethernet LAN feature in the Setup Utility program.

• Enable the Ethernet LAN adapter.

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1. Click the Start button to open the Start menu.

2. Click Windows System ➙ Control Panel.

3. View Control Panel by Large icons or Small icons, and then click Network and Sharing Center ➙

Change adapter settings.

4. Right-click the Ethernet LAN adapter icon and click Enable.

• Update or reinstall the Ethernet LAN driver. See “Keeping your computer current” on page 59.

• Install all networking software that is necessary for your network environment. Check with your LAN

administrator for the necessary networking software.

• Set the same duplex for the switch port and the adapter. If you configured the adapter for full duplex,

ensure that the switch port is also configured for full duplex. Setting the wrong duplex mode might

degrade performance, cause data loss, or result in lost connections.

When a Gigabit Ethernet model computer is used at a speed of 1000 Mbps, the Ethernet LAN

connection fails or errors occur.

Solution:

Connect the network cable to the Ethernet connector using Category 5 wiring and a 100 BASE-T hub/switch

(not 100 BASE-X).

A Gigabit Ethernet model computer should connect to the network at a speed of 1000 Mbps but at

only a speed of 100 Mbps.

Solutions:

• Try another cable.

• Set the link partner to auto-negotiate.

• Set the switch to be 802.3ab-compliant (gigabit over copper).

The Wake On LAN feature does not work.

Solution:

Enable the Wake On LAN feature in the Setup Utility program.

Wireless LAN problem

Note: The wireless LAN feature is available only on some models.

The wireless LAN feature does not work.

Solutions:

• Enable the wireless LAN feature in the Setup Utility program.

• For Windows 10, enable the wireless LAN feature in Windows Settings. Click the Start button to open the

Start menu, and then click Settings ➙ Network & Internet ➙ Wi-Fi. Turn on the Wi-Fi feature.

• Enable the wireless LAN adapter.

1. Click the Start button to open the Start menu.

2. Click Windows System ➙ Control Panel.

3. View Control Panel by Large icons or Small icons, and then click Network and Sharing Center ➙

Change adapter settings.

4. Right-click the wireless LAN adapter icon and click Enable.

• Update or reinstall the wireless LAN driver. See “Keeping your computer current” on page 59.

Chapter 7.Troubleshooting, diagnostics, and recovery 85

Bluetooth problems

Note: The Bluetooth feature is available only on some models.

The Bluetooth feature does not work.

Solutions:

• Enable the Bluetooth feature in the Setup Utility program.

• Enable the Bluetooth devices：

1. Right-click the Start button to open the Start context menu.

2. Click Device Manager. Type the administrator password or provide confirmation if prompted.

3. Expand Bluetooth to display the Bluetooth devices. Then, right-click each Bluetooth device and then

Click Enable device.

4. Expand Network adapters. Then, right-click each Bluetooth device and then Click Enable device.

• Turn on the Bluetooth radio on Windows 10. Do the following:

1. Click the Start button to open the Start menu.

2. Click Settings ➙ Devices ➙ Bluetooth & other devices.

3. Turn on the Bluetooth switch to enable the Bluetooth feature.

• Update or reinstall the Bluetooth driver. See “Keeping your computer current” on page 59.

No sound comes from the Bluetooth headset or headphones.

Solution:

Set the Bluetooth headset or headphones as the default device.

1. Exit the application that uses the sound device (for example, Windows Media Player).

2. Right-click the volume icon in the Windows notification area on the taskbar.

Note: If the volume icon is not displayed in the Windows notification area, add the icon to the

notification area. See the Windows help system.

3. Click Playback devices.

4. If you are using the Headset profile, select Bluetooth Hands-free Audio, and then click Set Default. If

you are using the AV profile, select Stereo Audio, and then click Set Default.

5. Click OK.

Performance problems

Excessive fragmented files exist on the storage drives.

Solution:

Use the Windows disk defragmentation or disk optimization feature to clean up the files.

Note: Depending on the volume of the storage drives and amount of data stored on the storage drives, the

disk-defragmentation process might take up to several hours.

1. Close any open programs and windows.

2. Click the Start button to open the Start menu.

3. Click Windows System ➙ File Explorer ➙ This PC.

4. Right-click your C drive and then click Properties.

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5. Click the Tools tab.

6. Click Optimize. Select the desired drive and then click Optimize.

7. Follow the instructions on the screen.

The free storage drive space is insufficient.

Solutions:

Free up the storage drive space.

• Clean out your Inbox, Sent Items, and Deleted Items folders from your e-mail application.

• Clean up your C drive.

1. Click the Start button to open the Start menu.

2. Click Windows System ➙ File Explorer ➙ This PC.

3. Right-click your C drive and then click Properties.

4. Check the amount of free space, and then click Disk Cleanup.

5. A list of unnecessary file categories is displayed. Select each file category you want to delete, and

then click OK.

• Turn some Windows features off or remove some unnecessary programs.

1. Click the Start button to open the Start menu.

2. Click Windows System ➙ Control Panel.

3. View Control Panel by Large icons or Small icons, and then click Programs and Features.

4. Do one of the following:

– To turn some Windows features off, click Turn Windows features on or off. Follow the

instructions on the screen.

– To remove some unnecessary programs, select the program you want to remove, and then click

Uninstall/Change or Uninstall.

The free memory space is insufficient.

Solutions:

• Right-click a blank area on the taskbar and open Task Manager. Then, end some tasks you are not

performing.

• Install additional memory modules. See Chapter 9 “Hardware removal and installation” on page 99. To

purchase memory modules, go to:

https://www.lenovo.com

Serial connector problem

The serial connector cannot be accessed.

Solutions:

• Connect the serial cable from the serial connector on the computer to the serial device. If the serial device

has its own power cord, connect the power cord to a grounded electrical outlet.

• Turn on the serial device and keep the device online.

• Install any programs supplied with the serial device. Refer to the documentation that comes with the serial

device for more information.

• If you added one serial-connector adapter, ensure that the adapter is installed correctly.

Chapter 7.Troubleshooting, diagnostics, and recovery 87

USB device problems

A USB device cannot be accessed.

Solutions:

• Connect the USB cable from the USB connector to the USB device. If the USB device has its own power

cord, connect the power cord to a grounded electrical outlet.

• Turn on the USB device and keep the device online.

• Install any device drivers or programs supplied with the USB device. Refer to the documentation that

comes with the USB device for more information.

• Disconnect and reconnect the USB connector to reset the USB device.

• Ensure that the Smart USB Protection function is disabled. To configure the Smart USB Protection

function, see “Using the Smart USB Protection function” on page 64.

Software and driver problems

For some programs, dates cannot be sorted in correct order.

Solution:

Some programs developed before the year 2000 use only the last two digits of a year to sort dates, assuming

the first two digits are 19. Consequently, dates cannot be sorted in correct order nowadays. Check with your

software manufacturer to see if any updates are available. Many software manufacturers make updates

available from the World Wide Web.

Some programs do not work as expected.

Solutions:

1. Check whether the problem is caused by a program.

a. Ensure that the software is compatible with your computer. Refer to the information supplied with the

software for more information.

b. Verify that other software works properly on your computer.

c. Verify that the software you are using works on another computer.

2. If the problem is caused by a program:

• Refer to the printed documentation that comes with the program or the help system of the program

for troubleshooting information.

• Update the program. See “Keeping your computer current” on page 59.

• Uninstall the program and then reinstall it. To download a program that is preinstalled on your

computer, go to https://support.lenovo.com and follow the instructions on the screen.

A device does not work properly due to device driver problems.

Solution:

Update the device driver. See “Keeping your computer current” on page 59.

Lenovo diagnostic tools

For information about Lenovo diagnostic tools, go to:

https://pcsupport.lenovo.com/lenovodiagnosticsolutions

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Recovery information

This section provides instructions on how to recover your operating system.

Note: If a device does not work correctly after recovering the operating system, update the device driver.

See “Keeping your computer current” on page 59.

To recover your Windows 10 operating system, use the following solutions:

• Use Windows recovery solutions.

– Use recovery solutions in Windows Settings.

1. Click the Start button to open the Start menu.

2. Click Settings ➙ Update & Security ➙ Recovery.

3. Follow the instructions on the screen to choose the appropriate recovery solution.

– Use System Restore to restore system files and settings to an earlier point.

1. Click the Start button to open the Start menu.

2. Click Windows System ➙ Control Panel.

3. View Control Panel by Large icons or Small icons, and then click Recovery ➙ Open System

Restore.

4. Follow the instructions on the screen.

– Use the File History tool to restore your files from a backup.

Note: If you use the File History tool to restore your files from a backup, ensure that you backed up

your data earlier with the tool.

1. Click the Start button to open the Start menu.

2. Click Windows System ➙ Control Panel.

3. View Control Panel by Large icons or Small icons, and then click File History ➙ Restore personal

files.

4. Follow the instructions on the screen.

– Use the Windows recovery environment by doing one of the following:

– After several consecutive failed boot attempts, the Windows recovery environment might start

automatically. Follow the instructions on the screen to choose the appropriate recovery solution.

– Select the recovery medium you created earlier with the Windows tool as the startup device. See

“Selecting a temporary startup device” on page 72. Then, follow the instructions on the screen to

choose the appropriate recovery solution.

• Use the recovery USB key provided by Lenovo to restore the entire storage drive to the factory-default

settings.

– If your computer comes with the recovery USB key, follow the instructions shipped with the USB key.

– If your computer does not come with the recovery USB key, contact the Lenovo Customer Support

Center to order a recovery USB key. See “Calling for service” on page 202.

Chapter 7.Troubleshooting, diagnostics, and recovery 89

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Chapter 8. Service checkout and symptom-to-FRU index

This chapter provides information about general service checkout and symptom-to-FRU index.

Service checkout

Attention: The drives in the computer you are servicing might have been rearranged or the drive startup

sequence changed. Be extremely careful during write operations such as copying, saving, or formatting.

Data or programs can be overwritten if you select an incorrect drive.

General error messages appear if a problem or conflict is found by a program, the operating system, or both.

For an explanation of these messages, refer to the information supplied with that software package.

Before replacing any FRUs, ensure that the latest level of BIOS is installed on the system. A down-level BIOS

might cause false errors and unnecessary replacement of the system board. For more information about how

to determine and obtain the latest level BIOS, see “BIOS level” on page 73.

Use the following procedure to help determine the cause of the problem:

1. Turn off the computer and all external devices.

2. Check all cables and power cords.

3. Set all display controls to the middle position.

4. Turn on all external devices.

5. Turn on the computer.

• Look for displayed error codes.

• Listen for beep codes.

• Look for readable instructions or a main menu on the display.

If you did not receive the correct response, proceed to step 6 on page 91.

If you do receive the correct response, proceed to step 7 on page 91.

6. Look at the following conditions and follow the instructions:

• If you hear beep codes during POST, go to “Beep symptoms” on page 93.

• If the computer displays a POST error, go to “POST error codes” on page 94.

• If the computer hangs and no error is displayed, continue at step 7 on page 91.

7. Run the Diagnostic programs. See “Lenovo diagnostic tools” on page 88.

• If you receive an error, replace the part that the diagnostic program calls out.

• If the test stops and you cannot continue, replace the last device tested.

Problem determination tips

Due to the variety of hardware and software combinations that can be encountered, use the following

information to assist you in problem determination. If possible, have this information available when

requesting assistance from Service Support and Engineering functions.

• Machine type and model

• Processor or hard disk drive upgrades

• Failure symptom

– Do diagnostics indicate a failure?

– What, when, where, single, or multiple systems?

– Is the failure repeatable?

– Has this configuration ever worked?

– If it has been working, what changes were made prior to its failing?

– Is this the original reported failure?

• Diagnostics version

– Type and version level

• Hardware configuration

– Print (print screen) configuration currently in use

– BIOS level

• Operating system software

– Type and version level

Notes: To eliminate confusion, identical systems are considered identical only if they:

1. Are the exact machine type and models

2. Have the same BIOS level

3. Have the same adapters/attachments in the same locations

4. Have the same address jumpers/terminators/cabling

5. Have the same software versions and levels

6. Have the same Diagnostic Diskettes (version)

7. Have the same configuration options set in the system

8. Have the same setup for the operating system control files

Comparing the configuration and software set-up between “working and non-working” systems will often

lead to problem resolution.

Symptom-to-FRU index

The Symptom-to-FRU index lists error symptoms and possible causes. The most likely cause is listed first.

Always begin with “Service checkout” on page 91. This index can also be used to help you decide which

FRUs to have available when servicing a computer. If you are unable to correct the problem using this index,

go to “Undetermined problems” on page 97.

Notes:

• The Symptom-to-FRU index is not specific to any machine type and are applicable to all ThinkStation computers.

• If you have both an error message and an incorrect audio response, diagnose the error message first.

• If you cannot run the diagnostic tests or you get a diagnostic error code when running a test, but did receive a

POST error message, diagnose the POST error message first.

• If you did not receive any error message, look for a description of your error symptoms in the first part of this index.

Hard disk drive boot error

A hard disk drive boot error can have the following causes.

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Error FRU/Action

The start-up drive is not in the boot sequence in

configuration.

Check the configuration and ensure that the start-up drive

is in the boot sequence.

No operating system installed on the boot drive. Install an operating system on the boot drive.

The boot sector on the startup drive is corrupted. The drive must be formatted. Do the following:

1. Attempt to back up the data on the failing hard disk

drive.

2. Using the operating system programs, format the

hard disk drive.

The drive is defective. Replace the hard disk drive.

Power supply problems

If you suspect a power problem, use the following procedures.

Check/Verify FRU/Action

Check the following for proper installation.

• Power cord

• On/Off switch connector

• On/Off switch power supply connector

• System board power supply connectors

• Microprocessor connection

Reseat connectors

Check the power cord for continuity. Power cord

Check the power-on switch for continuity. Power-on switch

Beep symptoms

Beep symptoms are tones or a series of tones separated by pauses (intervals without sound) during POST.

The following table describes the beep symptoms.

Beep symptom FRU/Action

2 short beeps: common POST error Common POST error code. See the detailed failure

information in “POST error codes” on page 94.

3 short and 1 long beeps: DRAM memory error Perform the following actions in order:

1. Make sure that the memory modules are properly

seated in the memory slots.

2. Replace the memory modules.

3. Replace the system board (for trained service

personnel only).

Chapter 8.Service checkout and symptom-to-FRU index 93

Beep symptom FRU/Action

4 long beeps: insufficient shadow RAM resources for

option ROM (error code: 8998) or PCIe/PCI MMIO

(memory mapped input/output) resources (error code:

8999)

See the detailed failure information in “POST error codes”

on page 94.

2 long and 3 short beeps: graphics card error Perform the following actions in order:

1. Make sure that the graphics cards are properly

seated in the slots.

2. Replace the graphics cards.

3. Replace the system board (for trained service

personnel only).

POST error codes

Each time you turn on the system, it performs a series of tests that check the operation of the system and

some options. This series of tests are called the Power-On Self-Test, or POST. POST checks the following

operations:

• Some basic system-board operations

• Memory operation

• Video operation

• Whether the boot drive is working

If the POST detects a problem, an error message appears on the screen. A single problem might cause

several error messages to appear. When you correct the cause of the first error message, the other error

messages probably will not appear on the screen the next time.

Error code POST error message Description/Action

0135 CPU fan failure

System fan failure

Power fan failure

Front fan failure

Rear fan failure

Auxiliary fan failure

ODD fan failure

This error message is displayed

when a fan fails and the system

might be overheating.

Press F10 to exit.

0211 Keyboard not found This error message is displayed when

no keyboard is detected.

0164 Memory size decreased This error message is displayed

when the memory size is

decreased.

Press F10 to exit.

1762 SATA device configuration change

has occurred This error message is displayed

when a hard disk drive change or

an optical drive change has been

made.

Press F10 to exit.

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Error code POST error message Description/Action

1820 More than one external fingerprint

reader is attached. Turn off and

remove all but the reader that you set

up within your main operating

system.

This error message is displayed

when more than one external

fingerprint reader is connected to

the computer.

Turn off and remove all but the

reader that you set up within your

main operating system.

1962 No operating system found. Boot

sequence will automatically repeat. This error occurs only after the

POST is completed.

Press any key to repeat boot

sequence.

8998 Not enough shadow RAM resources

for OPTION ROM, not all devices

initialized. Suggest to remove some

add-on cards, or change to UEFI

mode in BIOS setup.

This error message is displayed

when the shadow RAM resources

for option ROM are insufficient.

If the legacy option ROM is

insufficient, remove some add-in

cards.

For the system that supports

UEFI, set UEFI as the first priority

or disable CSM in BIOS setup.

8999 Not enough PCIe/PCI MMIO

resources. Currently only one video

card is enabled. Remove some PCIe

cards, or enter BIOS Setup and

enable “Above 4GB Decode”

This error message is displayed

when the PCIe/PCI MMIO

(memory mapped input/output)

resources are insufficient.

For the 32-bit operating system,

remove some add-in cards.

For the 64-bit operating system,

enable Above 4 GB Decode in

BIOS setup.

Miscellaneous error conditions

Message/Symptom FRU/Action

Changing display colors Display/Monitor

Computer will not power-off. See “Hard disk drive boot

error” on page 92. 1. Power Switch

2. System Board

3. Riser card, if installed.

Computer will not RPL from server 1. Ensure that the network is in startup sequence as the

first device or the first device after diskette.

2. Ensure that the network adapter is enabled for RPL.

3. Network adapter (Advise network administrator of

new MAC address)

Chapter 8.Service checkout and symptom-to-FRU index 95

Message/Symptom FRU/Action

Computer will not perform a Wake On LAN® (if applicable) 1. Check the power supply and signal cable

connections to the network adapter.

2. Ensure that the operating system settings are set to

enable Wake on LAN.

3. Ensure that the Wake On LAN feature is enabled in

Setup/Configuration (see “Starting the Setup Utility

program” on page 67)

4. Ensure that the network administrator is using the

correct MAC address.

5. Ensure no interrupt or I/O address conflicts.

6. Network adapter (advise network administrator of

new MAC address)

Dead computer. See “Hard disk drive boot error” on page

92. 1. Power Supply

2. System Board

Diskette drive in-use light remains on or does not light

when drive is active. 1. Diskette Drive

2. System Board

3. Diskette Drive Cable

Blank screen except for flashing cursor. 1. System Board

2. Primary Hard Disk Drive

3. Hard Disk Drive Cable

Incorrect memory size during POST 1. Run the Memory tests.

2. Memory Module

3. System Board

"Insert a Diskette" icon appears with a known-good

diagnostics diskette in the first 3.5-inch diskette drive. 1. System Board

2. Diskette Drive Cable

3. Network Adapter

Intensity or color varies from left to right of characters and

color bars 1. Display

2. Video adapter (if present)

3. System Board

No power or fan not running 1. See “Hard disk drive boot error” on page 92.

Non-system disk or disk error-type message with a

known-good diagnostic diskette. 1. Diskette Drive

2. System Board

3. Diskette Drive Cable

Other display symptoms not listed above (including blank

or illegible display) 1. Display

2. System Board

Power-on indicator or hard disk drive in-use light not on,

but computer works correctly 1. Power switch/LED assembly

2. System Board

Printer problems 1. Printer

2. System Board

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Message/Symptom FRU/Action

Program loads from the hard disk with a known-good

diagnostics diskette in the first 3.5-inch diskette drive 1. Run the Setup Utility program and check the Startup

sequence.

2. Diskette Drive

3. Diskette Drive Cable

4. System Board

5. Power Supply

RPL computer cannot access programs from its own hard

disk. 1. If the network administrator is using LCCM Hybrid

RPL, check the startup sequence:

a. First device - network

b. Second device - hard disk

2. Hard disk drive

RPL computer does not RPL from server 1. Check the startup sequence.

2. Check the network adapter LED status.

Serial or parallel connector device failure (system board

connector) 1. External Device Self-Test OK?

2. External Device

3. Cable

4. System Board

Serial or parallel connector device failure (adapter

connector) 1. External Device Self-Test OK?

2. External Device

3. Cable

4. Alternate Adapter

5. System Board

Some or all keys on the keyboard do not work 1. Keyboard

2. Keyboard Cable

3. System Board

Undetermined problems

This section provides instructions on how to find out the failing devices or adapters.

1. Turn off the computer.

2. Remove or disconnect the following components (if installed) one at a time.

a. External devices (modem, printer, or mouse)

b. Any adapters

c. Memory modules

d. Extended video memory

e. External Cache

f. External Cache RAM

g. Hard disk drive

h. Diskette drive

3. Turn on the computer to retest the system.

Chapter 8.Service checkout and symptom-to-FRU index 97

4. Repeat steps 1 through 3 until you find the failing device or adapter.

If all devices and adapters have been removed, and the problem continues, replace the system board. See

“System board” on page 194.

98 P520 Hardware Maintenance Manual

Chapter 9. Hardware removal and installation

This chapter provides instructions on how to remove and install hardware for your computer.

Handling static-sensitive devices

Do not open the static-protective package containing the new part until the defective part has been removed

and you are ready to install the new part. Static electricity, although harmless to you, can seriously damage

computer components and options.

When you handle options and other computer components, take these precautions to avoid static-electricity

damage:

• Limit your movement. Movement can cause static electricity to build up around you.

• Always handle options and other computer components carefully. Handle PCI/PCIe cards, memory

modules, system boards, and microprocessors by the edges. Never touch any exposed circuitry.

• Prevent others from touching the options and other computer components.

• Touch the static-protective package containing the part to a metal expansion-slot cover or other

unpainted metal surface on the computer for at least two seconds. This reduces static electricity from the

package and your body before you install or replace a new part.

• When possible, remove the new part from the static-protective package, and install it directly in the

computer without setting the part down. When this is not possible, place the static-protective package on

a smooth, level surface and place the part on the package.

• Do not place the part on the computer cover or other metal surface.

Preparing your computer and removing the computer cover

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

CAUTION:

Avoid contact with hot components inside the computer. During operation, some components

become hot enough to burn the skin. Before you open the computer cover, turn off the computer,

disconnect power, and wait approximately 10 minutes for the components to cool.

Before installing or removing any hardware component in your computer, do the following to prepare your

computer and remove the computer cover:

1. Remove any media from the drives and turn off all attached devices and the computer. Then, disconnect

all power cords from electrical outlets and disconnect all cables that are connected to the computer.

2. Unlock any locking device that secures the computer cover. See “Locking your computer” on page 61.

3. Press the handle of the computer cover so that the handle is lifted.

Figure 13. Opening the handle on the computer cover

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4. Gently lift the handle and remove the cover from the chassis.

Figure 14. Removing the computer cover

Notes:

• Depending on your computer model, some of the hardware parts in the installing or replacing section

might not be available.

• Use computer parts provided only by Lenovo.

• When installing or replacing an option, use the appropriate instructions in this section along with the

instructions that come with the option.

• In most areas of the world, Lenovo requires the return of the defective CRU. Information about this will

come with the CRU or will come a few days after the CRU arrives.

Removing and installing hardware

This section provides instructions on how to remove and install hardware for your computer. You can expand

the capabilities of your computer and maintain your computer by removing or installing hardware.

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

External options

You can connect external options to your computer, such as external speakers, a printer, or a scanner. For

some external options, you must install additional software in addition to making the physical connection.

Chapter 9.Hardware removal and installation 101

When installing an external option, see “Hardware locations” on page 29 to identify the required connector.

Then, use the instructions that come with the option to help you make the connection and install any required

software or device drivers.

Device in the flex bay

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

The flex bay of your computer supports the following devices:

• Flex module

• Front-access storage enclosure

• Multi-drive conversion kit

• Optical drive

• Slim-optical-drive adapter

• Storage drive bracket

Note: The following instructions on how to remove or install an optical drive also apply to other supported

devices in the flex bay.

To remove or install an optical drive, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Locate the flex bay. See “Computer components” on page 35.

3. To remove the optical drive, do the following:

a. Disconnect the signal cable and the power cable from the rear of the optical drive.

Note: If you are removing other supported devices from the flex bay, disconnect any additional

cables first.

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b. Then, lift the tab 1 upward as shown, and push the rear of the optical drive to slide it out of the

computer.

Figure 15. Removing the optical drive

4. To install an optical drive, do the following:

Chapter 9.Hardware removal and installation 103

a. If you are installing an optical drive into a flex bay with a plastic shield installed, press the clip as

shown to remove the plastic shield. If there is a metal static shield installed in the flex bay, remove

the metal static shield.

Figure 16. Removing the plastic shield in the flex bay

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b. Lift the tab 1 upward as shown, and slide the new optical drive halfway into the bay from the front of

the computer. Then, release the tabs and continue to slide the optical drive into the bay until it snaps

into position.

Figure 17. Installing the optical drive

c. Connect the signal cable and the power cable to the new optical drive.

Note: Reconnect any cables removed from other supported devices.

Figure 18. Connecting cables to the optical drive

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Storage drive in the front-access storage enclosure

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

Chapter 9.Hardware removal and installation 105

You can install or replace a storage drive in the front-access storage enclosure. The storage drive also can

be hot-swappable, which means that you can install or replace the drive without even turning off your

computer. Therefore, lock the enclosure cover to prevent the unexpected removal. The keys are attached at

the rear of the computer. Store the keys in a secure place.

The storage drive in the front-access storage enclosure is hot-swappable only when the following

requirements are met:

• The SATA cable of the front-access storage enclosure is connected to the eSATA connector on the

system board. To verify the cable connection, see “Preparing your computer and removing the computer

cover” on page 99 and “Parts on the system board” on page 42 for more information.

• The operating system of your computer does not reside on the storage drive installed in the front-access

storage enclosure.

Attention: If any of the above requirements are not met, do not remove or install the storage drive when the

computer is turned on. Otherwise, data on the storage drive might get damaged.

3.5-inch storage drive

To remove or install a 3.5-inch storage drive, do the following:

1. Before removing an old 3.5-inch storage drive, safely eject the old storage drive from the operating

system first. For more information, see the Windows help system.

2. Unlock the enclosure cover with the provided key as shown. Press the notch a to open the enclosure

cover.

Figure 19. Opening the front-access storage enclosure cover

3. Press the pit on the bracket cover, and then grasp the tilted cover to pull the bracket out of the front-

access storage enclosure.

Figure 20. Removing the bracket from the front-access storage enclosure

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4. To remove the 3.5-inch storage drive, flex both sides of the bracket to remove the 3.5-inch storage drive

from the bracket.

Figure 21. Removing the 3.5-inch storage drive from the bracket

Chapter 9.Hardware removal and installation 107

5. To install a new 3.5-inch storage drive, flex both sides of the bracket and align pins 1 on the bracket

with the corresponding holes in the new drive.

Notes:

• Ensure that the circuit board faces downward and the connectors face toward the rear of the bracket.

• Do not touch the circuit board on the storage drive during operation.

Figure 22. Installing the 3.5-inch storage drive into the bracket

6. Slide the bracket with the new 3.5-inch storage drive into the front-access storage enclosure until it

snaps into position. Press the notch to secure the enclosure cover and lock the enclosure cover with the

key.

Figure 23. Installing the 3.5-inch storage drive into the front-access storage enclosure

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

108 P520 Hardware Maintenance Manual

2.5-inch storage drive

To remove or install a 2.5-inch storage drive, do the following:

1. Before removing an old 2.5-inch storage drive, safely eject the old storage drive from the operating

system first. For more information, see the Windows help system.

2. Unlock the enclosure cover with the provided key as shown. Press the notch a to open the enclosure

cover.

Figure 24. Opening the front-access storage enclosure cover

3. Press the pit on the bracket cover, and then grasp the tilted cover to pull the bracket out of the front-

access storage enclosure.

Figure 25. Removing the bracket from the front-access storage enclosure

4. To remove the 2.5-inch storage drive, do the following:

a. Flex both sides of the bracket to remove the 2.5-inch storage drive from the bracket.

Figure 26. Removing the 2.5-inch storage drive from the bracket

Chapter 9.Hardware removal and installation 109

b. Lift the tab 1 of the metal bracket and push the metal bracket with force as shown. Then slide the

bracket and remove it from the plastic frame.

Figure 27. Removing the metal bracket from the plastic frame of the converter

c. Carefully flex both sides of the metal bracket to remove the storage drive from the bracket.

Figure 28. Removing the storage drive from the metal bracket

5. To install a new 2.5-inch storage drive into the front-access storage enclosure, do the following:

a. Carefully flex both sides of the metal bracket and align the four tabs 1 on the metal bracket with the

corresponding holes in the new storage drive.

Note: Ensure that the connectors of the storage drive face toward the tab of the metal bracket.

Figure 29. Installing the 2.5-inch storage drive into the metal bracket

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b. Insert the four posts 1 on the metal bracket into the corresponding slots in the plastic frame as

shown.

Figure 30. Inserting the metal bracket into the plastic frame of the converter

c. Push the metal bracket down until the tab 1 is slightly curved. Then, push the bracket with the

storage drive forward as shown until the tab 1 snaps into position.

Figure 31. Installing the metal bracket into the plastic frame of the converter

Chapter 9.Hardware removal and installation 111

d. Flex both sides of the plastic bracket and align pins 1 on the plastic bracket with the corresponding

holes in the plastic frame of the converter.

Notes:

• Ensure that the circuit board faces downward and the connectors face toward the rear of the

bracket.

• Do not touch the circuit board on the storage drive during operation.

Figure 32. Installing the converter with the 2.5-inch storage drive into the plastic bracket

6. Slide the plastic bracket with the new 2.5-inch storage drive into the front-access storage enclosure until

it snaps into position. Press the notch to secure the enclosure cover and lock the enclosure cover with

the key.

Figure 33. Installing the bracket with the 2.5-inch storage drive into the front-access storage enclosure

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Device in the multi-drive conversion kit

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

112 P520 Hardware Maintenance Manual

The multi-drive conversion kit (hereafter referred to as kit) might be equipped with either one or both of the

following components:

• Slim optical drive

• Storage drive (such as hard disk drive, solid-state drive, or hybrid drive)

Slim optical drive

Note: The instructions on how to remove or install a slim optical drive in the kit also apply to the slim-optical-

drive adapter.

To remove or install a slim optical drive, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Ensure that all the cables are disconnected from the kit. Remove the kit from the front of the computer.

See “Device in the flex bay” on page 102.

3. To remove the slim optical drive from the kit, do the following:

a. Press the clip through the hole in the top of the kit as shown and push forward the slim optical drive.

Then, remove the slim optical drive out of the kit.

Figure 34. Removing the slim optical drive from the kit

b. Detach the bracket as shown to remove it from the slim optical drive.

Figure 35. Removing the bracket from the slim optical drive

4. To install a new slim optical drive into the kit, do the following:

Chapter 9.Hardware removal and installation 113

a. Align the three tabs on the bracket with the corresponding holes in the new slim optical drive. Then,

install the bracket to the new slim optical drive.

Figure 36. Installing the bracket to the new slim optical drive

b. Insert the new slim optical drive into the kit until you hear a click. The slim optical drive is secured in

place.

Figure 37. Installing the slim optical drive into the kit

5. Slide the kit into the flex bay and reconnect the cables.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

3.5-inch storage drive

To remove or install a 3.5-inch storage drive, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Ensure that all the cables are disconnected from the kit. Remove the kit from the front of the computer.

See “Device in the flex bay” on page 102.

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3. Press the clip as shown to open the rear cover of the kit.

Figure 38. Opening the rear cover of the kit

4. Press both clips simultaneously toward each other and pull the conversion bracket out of the rear of the

kit.

Figure 39. Removing the conversion bracket from the kit

Chapter 9.Hardware removal and installation 115

5. Flex both sides of the conversion bracket and then remove the 3.5-inch storage drive out of the bracket.

Do not touch the circuit board 1 on the drive.

Figure 40. Removing the 3.5-inch storage drive from the conversion bracket

6. To install a 3.5-inch storage drive, ensure that the conversion bracket is unfolded. To unfold the bracket,

do the following:

a. Remove pins 1 and install them into slots 2.

Figure 41. Removing pins and installing them into the new slots

116 P520 Hardware Maintenance Manual

b. Release tabs 1, 2, and 3 from the corresponding slots.

Figure 42. Releasing tabs from the corresponding slots

c. Unfold the bracket as shown.

Figure 43. Unfolding the bracket

Chapter 9.Hardware removal and installation 117

d. Insert tabs 1, 2, and 3 into the corresponding slots. Ensure that the tabs are secured in place.

Figure 44. Inserting tabs into the corresponding slots

7. To install a 3.5-inch storage drive into the conversion bracket, do the following:

a. Flex both sides of the bracket and align pins 1, 2, 3, and 4 on the bracket with the corresponding

holes in the new 3.5-inch storage drive.

b. Install the new 3.5-inch storage drive into the bracket. Do not touch the circuit board 5 on the drive.

Figure 45. Installing the new 3.5-inch storage drive into the bracket

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8. Slide the new 3.5-inch storage drive with bracket into the kit from the rear until the drive snaps into

position.

Figure 46. Installing the new 3.5-inch storage drive with bracket into the kit

9. Pivot the rear cover of the kit inward until you hear a click. Ensure that the rear cover is secured in place.

Figure 47. Pivoting the rear cover inward

10. Slide the kit into the flex bay and reconnect the cables.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

2.5-inch storage drive

To remove or install a 2.5-inch storage drive, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Ensure that all the cables are disconnected from the kit. Remove the kit from the front of the computer.

See “Device in the flex bay” on page 102.

Chapter 9.Hardware removal and installation 119

3. Press the clip as shown to open the rear cover of the kit.

Figure 48. Opening the rear cover of the kit

4. Press both clips simultaneously toward each other and pull the conversion bracket out of the rear of the

kit.

Figure 49. Removing the conversion bracket from the kit

5. To remove the 2.5-inch storage drive, flex both sides of the conversion bracket and then remove the

drive out of the bracket. Do not touch the circuit board on the drive.

Figure 50. Removing the 2.5-inch storage drive from the bracket

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6. To install a 2.5-inch storage drive, ensure that the conversion bracket is folded. To fold the bracket, do

the following:

a. Remove pins 1 and install them into slots 2.

Figure 51. Removing pins and installing them into the new slots

b. Pivot the bracket as shown to release tabs 1, 2, and 3 from the slots.

Figure 52. Pivoting the bracket

c. Fold the bracket as shown.

Figure 53. Folding the bracket

Chapter 9.Hardware removal and installation 121

d. Insert tabs 1, 2, and 3 into the corresponding slots. Ensure that the tabs are secured in place.

Figure 54. Inserting the tabs into the corresponding slots

7. To install a 2.5-inch storage drive into the conversion bracket, do the following:

a. Flex both sides of the bracket and align pins 1, 2, 3, and 4 on the bracket with the corresponding

holes in the new 2.5-inch storage drive.

b. Install the new 2.5-inch storage drive into the bracket. Do not touch the circuit board 5 on the drive.

Figure 55. Installing the new 2.5-inch storage drive into the bracket

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8. Slide the new 2.5-inch storage drive with bracket into the kit from the rear until the drive snaps into

position.

Figure 56. Installing the new 2.5-inch storage drive with bracket into the kit

9. Pivot the rear cover of the kit inward until you hear a click. Ensure that the rear cover is secured in place.

Figure 57. Pivoting the rear cover inward

10. Slide the kit into the flex bay and reconnect the cables.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Cover presence switch

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

To remove or install the cover presence switch, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. To remove the cover presence switch, do the following:

Chapter 9.Hardware removal and installation 123

a. Locate the cover presence switch. See “Computer components” on page 35.

b. Disconnect the cover presence switch cable from the system board.

c. Slide the cover presence switch as shown to remove it from the computer chassis.

Figure 58. Removing the cover presence switch

3. To install a new cover presence switch, do the following:

a. Align the two notches in the new cover presence switch with the two tabs on the computer chassis.

Then, push the new cover presence switch inward until it is seated securely between the tabs.

Figure 59. Installing the cover presence switch

b. Connect the cable of the new cover presence switch to the cover presence switch connector on the

system board. See “Parts on the system board” on page 42.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

124 P520 Hardware Maintenance Manual

Storage drive in a storage drive bay

Your computer supports 3.5-inch hard disk drive, 3.5-inch hybrid drive, 2.5-inch hard disk drive, or 2.5-inch

solid-state drive.

3.5-inch storage drive

To remove or install a 3.5-inch storage drive, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Locate the storage drive bay. See “Internal storage drives” on page 44.

3. Ensure that all the cables are disconnected from the storage drive. Press both clips simultaneously

toward each other and pull the conversion bracket out of the storage drive bay.

Figure 60. Removing the conversion bracket

4. Flex both sides of the conversion bracket to remove the 3.5-inch storage drive from the bracket. Do not

touch the circuit board 1 on the drive.

Figure 61. Removing the storage drive from the conversion bracket

Chapter 9.Hardware removal and installation 125

5. To install a 3.5-inch storage drive, ensure that the conversion bracket is unfolded. To unfold the bracket,

do the following:

a. Remove the pin 1 and install it into the slot 2.

Figure 62. Removing the pin and installing it into the new slot

b. Release tabs 1, 2, and 3 from the corresponding slots.

Figure 63. Releasing tabs from the corresponding slots

126 P520 Hardware Maintenance Manual

c. Unfold the bracket as shown.

Figure 64. Unfolding the bracket

d. Insert tabs 1, 2, and 3 into the corresponding slots. Ensure that the tabs are secured in place.

Figure 65. Inserting tabs into the corresponding slots

Chapter 9.Hardware removal and installation 127

6. To install a 3.5-inch storage drive into the conversion bracket, do the following:

a. Flex both sides of the bracket and align pins 1, 2, 3, and 4 on the bracket with the corresponding

holes in the new 3.5-inch storage drive.

b. Install the new 3.5-inch storage drive into the bracket. Do not touch the circuit board 5 on the drive.

Figure 66. Installing the new 3.5-inch storage drive into the bracket

7. Ensure that the connectors on the storage drives are on the upper side. Then, slide the new 3.5-inch

storage drive with the conversion bracket into the storage drive bay until the drive snaps into position.

Figure 67. Installing the new 3.5-inch storage drive with bracket into the storage drive bay

8. Connect the signal cable and the power cable to the new storage drive.

128 P520 Hardware Maintenance Manual

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

2.5-inch storage drive

To remove or install a 2.5-inch storage drive in a conversion bracket, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Locate the storage drive bay. See “Internal storage drives” on page 44.

3. Ensure that all the cables are disconnected from the storage drive. Press both clips simultaneously

toward each other and pull the conversion bracket out of the storage drive bay.

Figure 68. Removing the conversion bracket

4. Flex both sides of the conversion bracket to remove the 2.5-inch storage drive from the bracket.

Figure 69. Removing the storage drive from the conversion bracket

5. To install a 2.5-inch storage drive, ensure that the conversion bracket is folded. To fold the bracket, do

the following:

Chapter 9.Hardware removal and installation 129

a. Remove the pin 1 and install it into the slot 2.

Figure 70. Removing the pin and installing it into the new slot

b. Pivot the bracket as shown to release tabs 1, 2, and 3 from the slots.

Figure 71. Pivoting the bracket

130 P520 Hardware Maintenance Manual

c. Fold the bracket as shown.

Figure 72. Folding the bracket

d. Insert tabs 1, 2, and 3 into the corresponding slots. Ensure that the tabs are secured in place.

Figure 73. Inserting the tabs into the corresponding slots

Chapter 9.Hardware removal and installation 131

6. To install a 2.5-inch storage drive into the conversion bracket, do the following:

a. Flex both sides of the bracket and align pins 1, 2, 3, and 4 on the bracket with the corresponding

holes in the new 2.5-inch storage drive.

b. Install the new 2.5-inch storage drive into the bracket. Do not touch the circuit board on the drive.

Figure 74. Installing the new 2.5-inch storage drive into the bracket

7. Ensure that the connectors on the storage drives are on the upper side. Slide the conversion bracket

with the new 2.5-inch storage drive into the storage drive bay until it snaps into position.

Figure 75. Installing the storage drive with conversion bracket into the storage drive bay

8. Connect the signal cable and the power cable to the new storage drive.

What to do next:

132 P520 Hardware Maintenance Manual

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Storage drive cage

Your computer might come with an optional storage drive cage. To remove or install the optional storage

drive cage, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Remove the front fan assembly. See “Front fan assembly” on page 161.

3. Locate the storage drive cage. See “Computer components” on page 35.

4. Ensure that all the cables are disconnected from the storage drives. Slide the storage drives out of the

chassis. See “Storage drive in a storage drive bay” on page 125.

5. To remove the storage drive cage, do the following:

a. Remove the three screws that secure the storage drive cage.

Figure 76. Removing the screws

Chapter 9.Hardware removal and installation 133

b. Pull the storage drive cage upward. Then gently slide the storage drive cage out of the chassis.

Figure 77. Removing the storage drive cage

6. To install a storage drive cage, do the following:

a. Place the upper edge of the storage drive cage under the front-fan-assembly retainer as shown.

Figure 78. Placing the upper edge of the storage drive cage under the retainer

134 P520 Hardware Maintenance Manual

b. Gently push the storage drive cage inward until it cannot be pushed any further. Then press the drive

cage downward.

Figure 79. Installing the storage drive cage

c. Ensure that the retaining latches on the chassis snap in position. Then install the three screws into

the aligned screw holes to secure the storage drive cage.

Figure 80. Securing the storage drive cage with three screws

7. Slide the storage drives into the storage drive cage. Reconnect the removed cables to the storage

drives. See “Storage drive in a storage drive bay” on page 125.

8. Reinstall the front fan assembly.

Chapter 9.Hardware removal and installation 135

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

M.2 solid-state drive

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

An M.2 solid-state drive can be installed in the storage drive bracket, on the system board or on an M.2

solid-state drive PCIe adapter. The instructions on how to install or replace a M.2 solid-state drive also apply

to the Intel Optane memory. Before replacing the Intel Optane memory, ensure that you disable the Intel

Optane memory from the Intel Rapid Storage Technology (Intel RST) Console. Otherwise, all data on the

storage drive will be lost.

M.2 solid-state drive in the storage drive bracket

To remove or install an M.2 solid-state drive, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. To remove the failing M.2 solid-state drive, do the following:

136 P520 Hardware Maintenance Manual

a. Unlock the M.2 solid-state drive carrier with the provided key as shown. Store the key in a secure

place for later use. Press the eject button to eject the carrier from the storage drive bracket. Then,

grasp the M.2 solid-state drive carrier by its edge and gently pull it out of the bracket.

Figure 81. Removing the M.2 solid-state drive carrier

b. Remove two screws and slide the cover as shown to remove the cover from the carrier.

Figure 82. Removing the cover of the M.2 solid-state drive carrier

Chapter 9.Hardware removal and installation 137

c. Loosen the screw that secures the M.2 solid-state drive. Then, remove the M.2 solid-state drive out

of the slot at an angle of about 20 degrees.

Note: Do not touch the circuit board of the M.2 solid-state drive.

Figure 83. Removing the M.2 solid-state drive

3. To install the M.2 solid-state drive, do the following:

a. Insert the new M.2 solid-state drive into the slot at an angle of about 20 degrees. Pivot the M.2 solid-

state drive downward. Then, tighten the screw to secure the M.2 solid-state drive.

Figure 84. Installing the M.2 solid-state drive

138 P520 Hardware Maintenance Manual

b. Reinstall the cover of the carrier as shown and reinstall the screws to secure the cover.

Figure 85. Installing the cover of the M.2 solid-state drive carrier

c. Reinstall the carrier into the bracket as shown until it snaps in to position. Lock the carrier with the

key. Always store the key in a secure place.

Figure 86. Reinstalling the M.2 solid-state drive carrier

M.2 solid-state drive on the system board

To remove or install an M.2 solid-state drive on the system board, do the following:

Chapter 9.Hardware removal and installation 139

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Lay the computer on its side for easier access to the M.2 solid-state drive slots.

3. Locate the M.2 solid-state drive. See “Computer components” on page 35.

4. Turn the mounting stud 90-degree counterclockwise to release the heat sink. Then, remove the heat sink

from the system board.

Figure 87. Removing the heat sink

5. To remove the M.2 solid-state drive, do the following:

a. Loosen the screw that secures the M.2 solid-state drive 1.

b. Remove the M.2 solid-state drive with the screw holder from the M.2 solid-state drive slot 2.

c. Remove the screw holder from the M.2 solid-state drive 3.

Figure 88. Removing the M.2 solid-state drive

6. To install an M.2 solid-state drive, do the following:

140 P520 Hardware Maintenance Manual

a. If necessary, remove the film that protects the thermal pad. Align the notch 1 in the screw holder

with the corresponding notch 2 in the M.2 solid-state drive. Insert the screw holder onto the new M.2

solid-state drive as shown.

Figure 89. Inserting the screw holder onto the M.2 solid-state drive

b. Hold the new drive by its edges and ensure that the circuit board side is facing upward. Align the

notch 1 in the new drive with the slot key 2 in the M.2 slot. Insert the drive into the corresponding

slot at an angle of about 20 degrees until it is firmly secured. Pivot the M.2 solid-state drive

downward.

Notes:

• Do not touch the circuit board of the M.2 solid-state drive.

• If only one M.2 solid-state drive is installed, ensure that the drive is installed in the M.2 solid-state

drive slot 1 ( 21 ). See “Parts on the system board” on page 42.

Figure 90. Installing the M.2 solid-state drive

Chapter 9.Hardware removal and installation 141

c. Tighten the screw to secure the new M.2 solid-state drive.

Note: Do not overtighten the screw.

Figure 91. Securing the M.2 solid-state drive

d. If necessary, remove the film that protects the thermal pad on the heat sink. Insert the two hooks on

the heat sink into the corresponding holes as shown 1. Then, press the heat sink downward 2.

Ensure that the mounting stud on the heat sink is aligned with the hole in the system board.

Figure 92. Installing the heat sink onto the system board

142 P520 Hardware Maintenance Manual

e. Press the mounting stud downward and turn the mounting stud 90-degree clockwise to secure the

heat sink to the system board.

Figure 93. Securing the heat sink to the system board

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

M.2 solid-state drive in an M.2 solid-state drive PCIe adapter

Install M.2 solid-state drives in the alphabetic order as shown.

Figure 94. M.2 solid-state drive installation order

To remove or install an M.2 solid-state drive in the M.2 solid-state drive PCIe adapter, do the following:

1. Remove the M.2 solid-state drive PCIe adapter from the PCIe card slot. See “Full-length PCIe card” on

page 155.

Chapter 9.Hardware removal and installation 143

2. Slide the cover latches to the open position. Then, pivot the cover as shown until it stops.

Figure 95. Opening the cover

3. Loosen the screws that secure the M.2 solid-state drive heat sink. Then, remove the heat sink as shown.

Figure 96. Removing the heat sink

144 P520 Hardware Maintenance Manual

4. To remove the M.2 solid-state drive, pull the handle of the retention latch outward to release the M.2

solid-state drive. Then, remove the M.2 solid-state drive from the PCIe adapter.

Figure 97. Removing the M.2 solid-state drive

5. To install an M.2 solid-state drive, do the following:

a. If necessary, move the retention latch to an appropriate location to suit the length of the new M.2

solid-state drive.

Figure 98. Adjusting the location of the retention latch on the PCIe adapter

b. If necessary, remove the film on the thermal pad on which you want to install the M.2 solid-state

drive.

Chapter 9.Hardware removal and installation 145

c. Pull the handle of the retention latch outward to the open position.

Figure 99. Opening the retention latch

d. Hold the new M.2 solid-state drive by its edges and ensure that the circuit board side is facing

upward. Align the notch in the new M.2 solid-state drive with the slot key in the M.2 slot. Insert the

drive into the corresponding slot on the PCIe adapter until it is firmly seated. Then, insert the plug of

the retention latch into the hole to secure the new drive.

Note: Do not touch the circuit board of the M.2 solid-state drive.

Figure 100. Installing the M.2 solid-state drive

146 P520 Hardware Maintenance Manual

6. Install the heat sink as shown. Then tighten the screws to secure the heat sink.

Figure 101. Installing the heat sink onto the PCIe adapter

7. Install the cover as shown. Then, slide the cover latches to the locked position.

Figure 102. Closing the cover

8. Install the M.2 solid-state drive PCIe adapter in a PCIe x16 card slot on the system board. See “Parts on

the system board” on page 42 and “Full-length PCIe card” on page 155.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Power supply assembly

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

Chapter 9.Hardware removal and installation 147

Although there are no moving parts in your computer after the power cord has been disconnected, the

following warnings are required for your safety.

CAUTION:

Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury,

seek medical care immediately.

DANGER

Disconnect all power cords from electrical outlets before removing the computer cover or any part

that has the above label attached.

DO NOT disassemble components that have the above label attached. There are no serviceable parts inside

these components.

Your product is designed for safe use. However, hazardous voltage, current, and energy levels are present

inside any component that has this label attached. Disassembling of these components might cause fire or

might even result in death. If you suspect a problem with one of these parts, contact a service technician.

To remove or install the power supply assembly, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. To remove the power supply, pull the handle on the power supply assembly and pivot it downward as

shown. Then, pull the entire power supply assembly out of the chassis.

Figure 103. Removing the power supply assembly

3. Ensure that the new power supply assembly is the correct replacement.

148 P520 Hardware Maintenance Manual

4. To install a new power supply, insert the new power supply assembly with the handle open into the

chassis. Then, pivot the handle as shown to fully install the new power supply assembly into position.

Note: When pivoting the handle to the closed position, push hard if you feel resistance.

Figure 104. Installing the power supply assembly

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

PCIe card

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

Your computer comes with the following combinations: one standard PCI card slot, two PCIe 3.0 x4 card

slots, one PCIe 3.0 x8 card slot, and two PCIe 3.0 x16 card slots.

Chapter 9.Hardware removal and installation 149

Install PCIe cards according to the corresponding slot types and the following illustrated installation order:

Figure 105. PCIe card installation order

Notes:

• The instructions on how to remove or install a PCIe card also applies to the PCI card.

• If your computer comes with a full-length PCIe card, refer to “Full-length PCIe card” on page 155 for its

replacement instructions.

To remove or install a PCIe card, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Lay the computer on its side for easier access to the system board.

150 P520 Hardware Maintenance Manual

3. To remove a PCIe card retainer, pull and pivot the tab on the front fan assembly as shown to open the

latch inside.

Figure 106. Opening the latch in the front fan assembly

Gently pull the PCIe card retainer out of the slot in the front fan assembly and then remove the card

retainer from the PCIe card latch.

Note: The PCIe card retainer is only available on some models.

Figure 107. Removing the PCIe card retainer

4. To remove the PCIe card, do the following:

Chapter 9.Hardware removal and installation 151

a. Lift the plastic PCIe card latch at the rear of the computer. Then, pivot the latch outward to rest it on

the edge of the rear panel.

Figure 108. Opening the PCIe card latch

b. If the PCIe card is connected to another device, disconnect the cable from the card first.

152 P520 Hardware Maintenance Manual

c. If the old PCIe card is held in place by a retaining latch, press the card retaining latch 1 as shown to

disengage the latch. Then grasp the card and gently pull it out of the slot.

Note: The card might fit tightly into the slot. If necessary, alternately move each side of the card a

small amount until the card is removed from the slot.

Figure 109. Removing a PCIe card

5. To install a new PCIe card, do the following:

a. Remove the new PCIe card from its static-protective package.

Chapter 9.Hardware removal and installation 153

b. Lift the plastic PCIe card latch at the rear of the computer. Then, pivot the latch outward to rest it on

the edge of the rear panel.

Figure 110. Opening the PCIe card latch

c. Remove the appropriate metal slot cover. Install the new card into the appropriate slot on the system

board. See “Parts on the system board” on page 42.

d. Pivot the PCIe card latch and push it back in until it snaps into position.

e. If the new PCIe card needs to be connected to another device, connect the cable of the device to the

new PCIe card.

154 P520 Hardware Maintenance Manual

6. To install a PCIe card retainer, insert the corresponding end of the PCIe card retainer into the gaps in the

PCIe card latch as shown. Pivot the retainer downward to insert the part a into the corresponding slot in

the front fan assembly. Then, pivot the tab on the front fan assembly to close the latch inside.

Figure 111. Installing the PCIe card retainer

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Full-length PCIe card

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

Your computer comes with the following combinations: one standard PCI card slot, two PCIe 3.0 x4 card

slots, one PCIe 3.0 x8 card slot, and two PCIe 3.0 x16 card slots.

To remove or install a full-length PCIe card, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Lay the computer on its side for easier access to the system board.

Chapter 9.Hardware removal and installation 155

3. Lift the plastic PCIe card latch at the rear of the computer. Then, pivot the latch outward to rest it on the

edge of the rear panel.

Figure 112. Opening the PCIe card latch

4. Pull and pivot the tab on the front fan assembly as shown to open the latch inside.

Figure 113. Opening the latch in the front fan assembly

156 P520 Hardware Maintenance Manual

5. To remove a full-length PCIe card, disconnect the power cable from the card first. Press the card

retaining latch as shown to disengage the latch, and grasp the old card and gently pull it out of the slot.

Notes:

• Remove any parts that might prevent your access to the latch.

• The card might fit tightly into the slot. If necessary, alternately move each side of the card a small

amount until the card is removed from the slot.

Figure 114. Removing a full-length PCIe card

6. To install a full-length PCIe card, do the following:

a. If you are installing a new full-length PCIe card, remove the appropriate metal slot cover.

b. Remove the new full-length PCIe card from its static-protective package.

c. Align the extender on the new full-length PCIe card with the corresponding slot in the front fan

assembly. Then, install the new card into the appropriate slot on the system board. See “Parts on the

system board” on page 42.

Note: It is recommended that you install the full-length PCIe card into a PCIe 3.0 x16 card slot for

best performance.

7. Pivot the PCIe card latch and push it back in until it snaps into position. Then, pivot the tab on the front

fan assembly to close the latch inside.

8. Connect one end of the power cable to the new full-length PCIe card and the other end to the

appropriate power connector on the system board. See “Parts on the system board” on page 42.

What to do next:

Chapter 9.Hardware removal and installation 157

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Heat-sink-and-fan assembly

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

CAUTION:

Avoid contact with hot components inside the computer. During operation, some components

become hot enough to burn the skin. Before you open the computer cover, turn off the computer,

disconnect power, and wait approximately 10 minutes for the components to cool.

To remove or install the heat-sink-and-fan assembly, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Lay the computer on its side for easier access to the system board.

3. Locate the heat-sink-and-fan assembly. See “Computer components” on page 35.

4. Disconnect the heat-sink-and-fan-assembly cable from the microprocessor fan connector on the

system board.

5. Remove the four screws that secure the heat-sink-and-fan assembly to the system board in diagonal

sequence. For example,

a. Partially remove screw 1, then fully remove screw 2, and then fully remove screw 1.

b. Partially remove screw 3, then fully remove screw 4, and then fully remove screw 3.

Note: The illustration might be slightly different from your computer.

Figure 115. Removing the heat-sink-and-fan assembly

6. Carefully remove the heat-sink-and-fan assembly to avoid any possible damage to the system board.

Notes:

• The four screws cannot be removed from the heat-sink-and-fan assembly.

158 P520 Hardware Maintenance Manual

• You might have to gently twist the heat-sink-and-fan assembly to free it from the microprocessor.

• Do not touch the thermal grease while handling the heat-sink-and-fan assembly.

7. Apply appropriate amount of thermal grease to the new heat-sink-and-fan assembly.

8. Position the new heat-sink-and-fan assembly on the system board so that the four screws are aligned

with the holes in the system board.

Note: Ensure that the heat-sink-and-fan assembly cable is toward the microprocessor fan connector on

the system board.

9. Install the four screws to secure the new heat-sink-and-fan assembly in diagonal sequence. Do not

over-tighten the screws.

a. Partially tighten screw 1, then fully tighten screw 2, and then fully tighten screw 1.

b. Partially tighten screw 3, then fully tighten screw 4, and then fully tighten screw 3.

10. Connect the heat-sink-and-fan-assembly cable to the microprocessor fan connector on the system

board. See “Parts on the system board” on page 42.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Super capacitor module

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

To remove or install the super capacitor module, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Lay the computer on its side for easier access to the super capacitor module.

3. To remove the super capacitor module, do the following:

a. Pull and pivot the tab on the front fan assembly as shown to open the latch inside.

Figure 116. Opening the latch in the front fan assembly

Chapter 9.Hardware removal and installation 159

b. Disconnect the super-capacitor-module cable from the RAID adapter. Then, remove the holder with

the failing super capacitor module.

Figure 117. Removing the super capacitor module

4. To install a new super capacitor module, do the following:

a. Touch the static-protective package that contains the new super capacitor module and its holder to

any unpainted surface on the outside of the computer. Then, remove the new super capacitor

module and its holder from the package.

b. Pull and pivot the tab on the front fan assembly as shown to open the latch inside.

Figure 118. Opening the latch in the front fan assembly

c. Connect the super-capacitor-module cable to the super capacitor module connector on the RAID

adapter.

160 P520 Hardware Maintenance Manual

d. Insert the corresponding end of the holder into the gaps in the PCIe card latch as shown. Pivot the

holder downward to insert the part a into the corresponding slot in the front fan assembly. Then,

pivot the tab on the front fan assembly to secure the holder.

Figure 119. Installing the super capacitor module

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Front fan assembly

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

CAUTION:

Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury,

seek medical care immediately.

To remove or install the front fan assembly, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Remove the following devices if any:

• Full-length PCIe cards, see “Full-length PCIe card” on page 155

• PCIe card retainer, see “PCIe card” on page 149

• Super capacity module, see “Super capacitor module” on page 159

3. To remove the front fan assembly, do the following:

Chapter 9.Hardware removal and installation 161

a. Pull the front fan assembly by the handle to slide it out of the computer chassis.

Note: When you slide out the front fan assembly, avoid pulling the front-fan-assembly cable.

Figure 120. Removing the front fan assembly

b. Disconnect the front-fan-assembly cable from the front-fan-assembly connector on the system

board.

4. To install a new front fan assembly, do the following:

a. Connect the cable of the new front fan assembly to the front-fan-assembly connector on the system

board. See “Parts on the system board” on page 42.

b. Align the top and bottom edges of the new front fan assembly with the front-fan-assembly retainer in

the computer chassis. Then, slide the new front fan assembly inward until it is secured in position.

Figure 121. Installing the front fan assembly

5. Reinstall the M.2 solid-state drive holder, the full-length PCIe cards, the PCIe card retainer, and the

super capacitor module if you have removed them.

162 P520 Hardware Maintenance Manual

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Rear fan assembly

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

CAUTION:

Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury,

seek medical care immediately.

To remove or install the rear fan assembly, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Locate the rear fan assembly. See “Computer components” on page 35.

3. To remove the rear fan assembly, do the following:

a. Locate and disconnect the rear-fan-assembly cable from the rear-fan-assembly connector on the

system board.

b. Remove the rear fan assembly by breaking or cutting the rubber mounts and gently pulling the rear

fan assembly out of the chassis.

Figure 122. Removing the rear fan assembly

4. To install a new rear fan assembly, do the following:

Chapter 9.Hardware removal and installation 163

a. Align the new rubber mounts with the corresponding holes in the chassis and push the rubber

mounts through the holes. Pull the tips of the rubber mounts until the rear fan assembly is secured in

place.

Figure 123. Installing the rear fan assembly

b. Connect the rear-fan-assembly cable to the rear-fan-assembly connector on the system board. See

“Parts on the system board” on page 42.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Memory module

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

Your computer has eight slots for installing DDR4 RDIMMs that provide up to a maximum of 256 GB system

memory. When removing or installing a memory module, use the following guidelines:

• Use 8 GB, 16 GB, or 32 GB DDR4 ECC RDIMMs in any combination up to a maximum of 256 GB.

164 P520 Hardware Maintenance Manual

• Always install DIMMs in the following order as illustrated:

Figure 124. Memory module installation order

To remove or install a memory module, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Lay the computer on its side for easier access to the system board.

3. Locate the memory module slot. See “Parts on the system board” on page 42.

4. To remove the memory module, open the retaining clips and gently pull the memory module out of the

memory slot.

Figure 125. Removing a memory module

5. To install a memory module, do the following:

Chapter 9.Hardware removal and installation 165

a. Open the retaining clips of the memory slot into which you want to install the memory module.

Figure 126. Opening the retaining clips

b. Position the new memory module over the memory slot. Ensure that the notch 1 on the memory

module aligns correctly with the slot key 2 on the system board. Push the memory module straight

down into the slot until the retaining clips close.

Figure 127. Installing a memory module

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Coin-cell battery

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

Your computer has a special type of memory that maintains the date, time, and settings for built-in features,

such as parallel-connector assignments (configuration). A coin-cell battery keeps this information active

when you turn off the computer.

The coin-cell battery normally requires no charging or maintenance throughout its life; however, no battery

lasts forever. If the coin-cell battery fails, the date and time information is lost.

Refer to the “Lithium coin cell battery notice” in the Safety, Warranty, and Setup Guide for information about

replacing and disposing of the battery.

166 P520 Hardware Maintenance Manual

To remove or install the coin-cell battery, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Locate the coin-cell battery. See “Parts on the system board” on page 42.

3. Remove any parts that might impede your access to the coin-cell battery. Depending on your computer

model, you might need to remove the following parts for easier access to the coin-cell battery.

• “PCIe card” on page 149

• “Full-length PCIe card” on page 155

• “Super capacitor module” on page 159

4. Remove the old coin-cell battery as shown.

Figure 128. Removing the coin-cell battery

5. Install a new coin-cell battery as shown.

Figure 129. Installing a coin-cell battery

6. Reinstall the PCIe cards or the super capacitor module if you have removed them. See “PCIe card” on

page 149, “Full-length PCIe card” on page 155, or “Super capacitor module” on page 159.

7. Reinstall the computer cover and connect the cables. See “Completing the parts replacement” on page

198.

Note: When the computer is turned on for the first time after the coin-cell battery is replaced, an error

message might be displayed. This is normal after the coin-cell battery is replaced.

8. Turn on the computer and all attached devices.

9. Use the Setup Utility program to set the date and time. See “Using the Setup Utility program” on page

67.

Wi-Fi units

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

The Wi-Fi units include a Wi-Fi adapter, a Wi-Fi card, and a Wi-Fi antenna.

To remove or install the Wi-Fi units, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

Chapter 9.Hardware removal and installation 167

2. To remove the Wi-Fi antenna, unscrew the Wi-Fi antenna cable from the rear of the computer.

Figure 130. Removing the Wi-Fi antenna

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3. If your computer comes with a Wi-Fi card that supports the Bluetooth function, disconnect the Bluetooth

cable from the Wi-Fi adapter.

Figure 131. Disconnecting the Bluetooth cable

4. To remove the Wi-Fi adapter, lift the plastic PCIe card latch at the rear of the computer. Then, pivot the

latch outward to rest it on the edge of the rear panel.

Chapter 9.Hardware removal and installation 169

Figure 132. Opening the PCIe card latch

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Grasp the Wi-Fi adapter that is installed and gently pull it out of the slot.

Note: The card might fit tightly into the slot. If necessary, alternately move each side of the card a small

amount until the card is removed from the slot.

Figure 133. Removing the Wi-Fi adapter

Chapter 9.Hardware removal and installation 171

5. To remove the Wi-Fi card, do the following:

a. Disconnect the two Wi-Fi antenna cables from the Wi-Fi card.

b. Remove the two screws that secure the Wi-Fi card to the Wi-Fi adapter.

c. Gently pull the Wi-Fi card out of the mini PCIe slot.

Figure 134. Removing the Wi-Fi card

6. To install a new Wi-Fi card, do the following:

a. Insert the Wi-Fi card into the mini PCIe slot on the Wi-Fi adapter.

b. Install the two screws to secure the Wi-Fi card to the Wi-Fi adapter.

c. Connect the two Wi-Fi antenna cables to the Wi-Fi card.

Figure 135. Installing a Wi-Fi card

172 P520 Hardware Maintenance Manual

7. To install the Wi-Fi adapter, install the Wi-Fi adapter into the PCIe card slot on the system board. See

“Parts on the system board” on page 42. Then, pivot the PCIe card latch and push it back in until it

snaps into position.

Figure 136. Installing the Wi-Fi adapter

8. If the installed Wi-Fi card supports the Bluetooth function, connect a Bluetooth cable to the Wi-Fi

adapter.

Note: The Bluetooth cable connects the Bluetooth connector on the Wi-Fi adapter to one of the internal

USB 3.0 connectors on the system board. See “Parts on the system board” on page 42.

Chapter 9.Hardware removal and installation 173

9. Attach the Wi-Fi antenna cable connectors 1 to the corresponding Wi-Fi antenna connectors 2 as

shown.

Figure 137. Installing the Wi-Fi antenna

10. Tighten the Wi-Fi antenna cable connectors to secure them to the rear of the computer.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Device in the 5.25-inch flex module

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

The following devices are supported in the 5.25-inch flex module.

• “Slim optical drive” on page 186

• “Card reader” on page 175

• “eSATA connector, IEEE 1394 connector, or USB-C connector” on page 177

• “Front Thunderbolt adapter kit” on page 182

• “Four-digit diagnostics display” on page 179

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Card reader

To remove or install a card reader in the flex module, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Record the cable connections and cable routing. Then, disconnect all cables connected to the flex

module from the system board. See “Parts on the system board” on page 42.

3. Remove the flex module from the front of the computer. See “Device in the flex bay” on page 102.

4. Lift the clip on the side of the flex module upward. Then, slide the flex module cover to the rear of the

flex module to remove the cover.

Figure 138. Removing the flex module cover

5. If you are removing a card reader, do the following:

a. Pull the clip as shown to remove the card reader with the card reader retaining bracket out of the flex

module.

Figure 139. Removing the card reader in the flex module

b. Flex the four clips on the sides of the card reader retaining bracket to remove the card reader from

the bracket.

Chapter 9.Hardware removal and installation 175

Figure 140. Removing the card reader from the card reader retaining bracket

6. To install a card reader, do the following:

a. To install a new card reader into the card reader retaining bracket, align the four holes in the card

reader with the corresponding studs on the bracket. Then, press the new card reader downward until

it snaps into position.

Figure 141. Installing the card reader into the card reader retaining bracket

b. Note the orientation of the new card reader and route the card reader cable into the cable clip. Hold

the clip on the card reader retaining bracket. Then, insert the new card reader into the card reader

slot in flex module until it snaps into position.

Figure 142. Installing the card reader in the flex module

7. Position the flex module cover on the flex module. Ensure that the rail guides on the bottom of the flex

module cover engage the rails on the flex module. Then, push the cover to the front of the flex module

until it snaps into position.

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Figure 143. Reinstalling the flex module cover

8. Install the flex module into the flex bay. See “Device in the flex bay” on page 102.

9. Refer to the recorded information about the cable connections and routing. Reconnect all cables

connected to the flex module to the system board. For the card reader, connect the card reader cable to

the 15-in-1 card reader connector 39 on the system board. See “Parts on the system board” on page

42.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

eSATA connector, IEEE 1394 connector, or USB-C connector

To remove or install the eSATA connector, IEEE 1394 connector, or USB-C connector in the flex module, do

the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Record the cable connections and cable routing. Then, disconnect all cables connected to the flex

module from the system board. See “Parts on the system board” on page 42.

3. Remove the flex module from the front of the computer. See “Device in the flex bay” on page 102.

4. Lift the clip on the side of the flex module upward. Then, slide the flex module cover to the rear of the

flex module to remove the cover.

Figure 144. Removing the flex module cover

Chapter 9.Hardware removal and installation 177

5. Press the two clips toward each other as shown, and then pull the eSATA connector, IEEE 1394

connector, or USB-C connector out of the flex module.

Figure 145. Removing the eSATA connector, IEEE 1394 connector, or USB-C connector in the flex module

6. To install the eSATA connector, IEEE 1394 connector, or USB-C connector, do the following:

a. Note the orientation of the eSATA connector, IEEE 1394 connector, or USB-C connector and route

the cable into the cable clip.

b. Place the eSATA connector, IEEE 1394 connector, or USB-C connector into the metal retainer. Then,

insert the connector into the corresponding slot in the flex module as shown.

Figure 146. Installing the eSATA connector, IEEE 1394 connector, or USB-C connector in the flex module

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7. Position the flex module cover on the flex module. Ensure that the rail guides on the bottom of the flex

module cover engage the rails on the flex module. Then, push the cover to the front of the flex module

until it snaps into position.

Figure 147. Reinstalling the flex module cover

8. Install the flex module into the flex bay. See “Device in the flex bay” on page 102.

9. Refer to the recorded information about the cable connections and routing, reconnect all cables

connected to the flex module to the system board. See “Parts on the system board” on page 42. For the

eSATA connector, IEEE 1394 connector, or USB-C connector, connect the cables to the system board

as follows:

• Connect the eSATA connector cable to the eSATA connector on the system board.

• Connect the IEEE 1394 connector cable to the IEEE 1394 adapter.

• Connect the USB-C connector cable to the USB 3.0 extension connector or 15-in-1 card reader

connector on the system board.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Four-digit diagnostics display

To remove or install a four-digit diagnostics display in the flex module, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Record the cable connections and cable routing. Then, disconnect all cables connected to the flex

module from the system board. See “Parts on the system board” on page 42.

3. Disconnect the four-digit-diagnostics-display cable from the four-digit-diagnostics-display connector on

the system board. See “Parts on the system board” on page 42.

4. Remove the flex module from the front of the computer. See “Device in the flex bay” on page 102.

Chapter 9.Hardware removal and installation 179

5. Lift the clip on the rear of the flex module, and then slide the flex module cover to the rear of the flex

module.

Figure 148. Removing the flex module cover

6. To remove a four-digit diagnostics display, press the two clips toward each other and push forward the

four-digit diagnostics display. Then, pull the four-digit diagnostics display out of the flex module.

Figure 149. Removing the four-digit diagnostics display

7. To install a four-digit diagnostics display, do the following:

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a. Press the two clips toward each other as shown and push the dummy bezel out of the flex module.

Figure 150. Removing the dummy bezel

b. Insert the four-digit-diagnostics-display cable into the corresponding slot. Then, push the four-digit

diagnostics display as shown until it snaps into position.

Figure 151. Installing the four-digit diagnostics display

Chapter 9.Hardware removal and installation 181

8. Position the flex module cover on the flex module. Ensure that the rail guides on the bottom of the cover

engage the rails on the flex module. Then, push the cover to the front of the flex module until it snaps

into position.

Figure 152. Reinstalling the flex module cover

9. Install the flex module into the flex bay. See “Device in the flex bay” on page 102.

10. Refer to the recorded information about the cable connections and routing. Reconnect all cables

connected to the flex module to the system board. For the four-digit diagnostics display, connect the

four-digit-diagnostics-display cable to the four-digit-diagnostics-display connector on the system

board.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Front Thunderbolt adapter kit

The front Thunderbolt adapter kit includes the following parts:

• A front Thunderbolt I/O adapter

• A front Thunderbolt PCIe x4 card

• A bezel

• A general-purpose input/output (GPIO) cable

• A mini-SAS cable

• An internal DP-to-DP cable

• An external DP-to-DP cable

To remove or install a front Thunderbolt adapter kit, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Record the cable connections and cable routing. Then, disconnect all cables connected to the flex

module from the system board. See “Parts on the system board” on page 42.

3. Remove the flex module from the front of the computer. See “Device in the flex bay” on page 102.

4. Lift the clip on the rear of the flex module, and then slide the flex module cover to the rear of the flex

module.

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Figure 153. Removing the flex module cover

5. To remove a front Thunderbolt I/O adapter, do the following:

a. Remove all the cables connected to the front Thunderbolt I/O adapter.

b. Pull the clip as shown to remove the front Thunderbolt I/O adapter and the retaining bracket out of

the flex module.

Figure 154. Removing the front Thunderbolt adapter and the retaining bracket out of the flex module

c. Flex the four clips on the sides of the retaining bracket to remove the front Thunderbolt I/O adapter

from the bracket.

Figure 155. Removing the front Thunderbolt I/O adapter from the retaining bracket

6. To install a front Thunderbolt I/O adapter, do the following:

a. If necessary, remove the dummy bezel. Then, install the bezel in the front Thunderbolt adapter kit to

the flex module.

Chapter 9.Hardware removal and installation 183

Figure 156. Installing the bezel to the flex module

b. Align the four holes in the front Thunderbolt I/O adapter with the corresponding mounting studs on

the bracket. Then, press the card downward until it snaps into position.

Figure 157. Installing the front Thunderbolt I/O adapter into the retaining bracket

c. Hold the clip on the retaining bracket. Then insert the front Thunderbolt I/O adapter and the retaining

bracket into the flex module as shown until they snap into position.

Figure 158. Installing the front Thunderbolt adapter and the retaining bracket into the flex module

184 P520 Hardware Maintenance Manual

d. Install the front Thunderbolt PCIe x4 card into a PCIe 3.0 x4 card slot on the system board. See

“PCIe card” on page 149 and “Parts on the system board” on page 42.

e. Connect the cables to the front Thunderbolt I/O adapter.

• Connect the power cable in the flex module to the 4-pin power connector a.

• Connect the GPIO cable to the connector b.

• Connect the internal DP-to-DP cable to the DisplayPort connector c.

• Connect the mini-SAS cable to the SAS connector d.

abcd

Figure 159. Front Thunderbolt adapter cable connection

f. Route the cables through the two holes in the rear of the flex module.

7. Position the flex module cover on the flex module. Ensure that the rail guides on the bottom of the cover

engage the rails on the flex module. Then, push the cover to the front of the flex module until it snaps

into position.

Figure 160. Reinstalling the flex module cover

8. Install the flex module into the flex bay. See “Device in the flex bay” on page 102.

9. Refer to the recorded information about the cable connections and routing. Reconnect all cables

connected to the flex module to the system board. For the front Thunderbolt adapter kit, connect the

cables to the system board and the front Thunderbolt PCIe x4 card as follows:

Chapter 9.Hardware removal and installation 185

• Connect the GPIO cable to the Thunderbolt control connector ( 47 ) on the system board. See “Parts

on the system board” on page 42.

• Connect the internal DP-to-DP cable to the DisplayPort connector on the front Thunderbolt PCIe x4

card.

• Connect the mini-SAS cable to the SAS connector on the front Thunderbolt PCIe x4 card.

• Connect the external DP-to-DP cable to the DisplayPort connector on the front Thunderbolt PCIe x4

card and the DisplayPort connector on the graphics card.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Slim optical drive

To remove or install a slim optical drive in the flex module, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Record the cable connections and cable routing. Then, disconnect all cables connected to the flex

module from the system board. See “Parts on the system board” on page 42.

3. Remove the flex module from the front of the computer. See “Device in the flex bay” on page 102.

4. Lift the clip on the rear of the flex module. Then, slide the flex module cover to the rear of the flex module

to remove the cover.

Figure 161. Removing the flex module cover

5. To remove a slim optical drive, do the following:

a. Press the button as shown to remove the slim optical drive from the flex module.

186 P520 Hardware Maintenance Manual

Figure 162. Removing the slim optical drive from the flex module

b. Remove the two screws that secure the clip to remove the plastic clip from the rear of the slim optical

drive.

Note: The plastic clip and the two screws need to be reused to install a new slim optical drive.

Figure 163. Removing the plastic clip from the slim optical drive

6. To install a slim optical drive, do the following:

a. If no slim optical drive has been installed in the flex module before, press the two metal clips 1 to

remove the plastic clip with the two screws as shown. Remove the two screws.

Figure 164. Removing the plastic clip with the two screws

Chapter 9.Hardware removal and installation 187

b. Install the two screws to secure the plastic clip on the rear of the new slim optical drive.

Figure 165. Installing the plastic clip to the slim optical drive

c. Slide the new slim optical drive with the plastic clip into the flex module until the slim optical drive

snaps into position.

Figure 166. Installing the slim optical drive in the flex module

7. Position the flex module cover on the flex module. Ensure that the rail guides on the bottom of the flex

module cover engage the rails on the flex module. Then, push the cover to the front of the flex module

until it snaps into position.

Figure 167. Reinstalling the flex module cover

8. Install the flex module into the flex bay. See “Device in the flex bay” on page 102.

188 P520 Hardware Maintenance Manual

9. Refer to the recorded information about the cable connections and routing. Reconnect all cables

connected to the flex module to the system board. See “Parts on the system board” on page 42.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Front panel I/O cage

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter

1 “Read this first: Important safety information” on page 1.

To remove or install the front panel I/O cage, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Lay the computer on its side for easier access to the front panel I/O cage.

3. Locate the front panel I/O cage. See “Major FRUs and CRUs” on page 35.

4. To remove the front panel I/O cage, lift the tab on the rear of the cage 1 and push the cage

simultaneously in the direction as shown to remove it from the front of the chassis 2.

Figure 168. Removing the front panel I/O cage

Chapter 9.Hardware removal and installation 189

5. To install a new front panel I/O cage, note the orientation and insert the cage from the front of the

chassis into the flex bay until you hear a click. The front panel I/O cage is secured in place.

Figure 169. Installing the front panel I/O cage

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Microprocessor

Attention: Before you replace any FRU, be sure to read and understand Chapter 1 “Read this first:

Important safety information” on page 1.

CAUTION:

Avoid contact with hot components inside the computer. During operation, some components

become hot enough to burn the skin. Before you open the computer cover, turn off the computer,

disconnect power, and wait approximately 10 minutes for the components to cool.

Notes:

• Ensure that you install the correct type of microprocessor option your computer supports.

• Your microprocessor, socket, and socket cover might look slightly different from the illustrations in this

topic.

To remove or install the microprocessor, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Lay the computer on its side for easier access to the system board.

3. Locate and remove the heat sink and fan assembly. See “Heat-sink-and-fan assembly” on page 158.

Note: Place the heat sink and fan assembly on its side. Ensure that the thermal grease on the bottom of

it does not get in contact with anything.

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4. Open the small handle 1 by gently pressing down the small handle. Then pull the small handle slightly

outward to release it from the secured position. Then, open the other small handle 2 by following the

same instructions. Ensure that the small handles are in the fully open position.

Note: There are two marks on the microprocessor retainer. You must open the small handle marked

with first and then you can open the other small handle marked with .

Figure 170. Opening the handles

5. Gently press down the small handle 1 to open the microprocessor retainer. Pivot the retainer upward

until it is in the fully open position.

Figure 171. Opening the microprocessor retainer

Chapter 9.Hardware removal and installation 191

6. Lift the microprocessor straight up and out of the microprocessor socket. Place the old microprocessor

on a static-protective surface.

Notes:

• Your microprocessor and socket might look different from the one illustrated.

• Touch only the edges of the microprocessor. Do not touch the gold contacts on the bottom.

• Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be

kept as clean as possible.

Figure 172. Removing the microprocessor

7. Touch the static-protective package that contains the new microprocessor to any unpainted surface on

the outside of the computer. Then, remove the new microprocessor from the package.

8. Remove the new microprocessor from the protective cover that protects the gold contacts on the

bottom of the new microprocessor. Do not touch the pins on the microprocessor socket or the gold

contacts on the bottom of the new microprocessor.

Figure 173. Do not touch the pins

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9. Note the orientation of the new microprocessor. Hold the new microprocessor by its edges and align the

notches 1 on it with the tabs 2 in the microprocessor socket. Then, carefully lower the new

microprocessor straight down into the microprocessor socket.

Note: The small triangle 3 on one corner of the new microprocessor is the microprocessor orientation

indicator. The new microprocessor is in the correct orientation when this indicator faces the beveled

corner 4 of the microprocessor socket.

Figure 174. Installing the microprocessor

10. Pivot the microprocessor retainer downward to close the retainer.

Figure 175. Closing the microprocessor retainer

Chapter 9.Hardware removal and installation 193

11. Gently press down the small handle 2 and then push the handle inward to secure it. Then gently press

down the small handle 1 and push the handle inward to lock the microprocessor retainer into position.

Ensure that the new microprocessor is secured in the socket.

Note: There are two marks on the microprocessor retainer. Ensure that you close the small handle

marked with first and then close the small handle marked with . Always follow the correct

sequence when you close the small handles.

Figure 176. Securing the microprocessor in the socket

12. Reinstall the heat sink and fan assembly.

13. If you are instructed to return the old microprocessor, follow all packaging instructions and use any

packaging materials that are supplied to you for shipping.

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

System board

Attention: Before you replace any FRU, be sure to read and understand Chapter 1 “Read this first:

Important safety information” on page 1.

CAUTION:

Avoid contact with hot components inside the computer. During operation, some components

become hot enough to burn the skin. Before you open the computer cover, turn off the computer,

disconnect power, and wait approximately 10 minutes for the components to cool.

To remove or install the system board, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 99.

2. Lay the computer on its side for easier access to the system board.

3. To get access to the system board, remove the following parts if any:

• “PCIe card” on page 149

• “Full-length PCIe card” on page 155

• “Super capacitor module” on page 159

• “Memory module” on page 164

• “M.2 solid-state drive” on page 136

• “Power supply assembly” on page 147

• “Heat-sink-and-fan assembly” on page 158

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• “Coin-cell battery” on page 166

• “Front panel I/O cage” on page 189

4. Record the cable routing and cable connections and then disconnect all cables from the system board.

See “Parts on the system board” on page 42.

5. Remove the 11 screws that secure the system board in the sequence shown in the following illustration.

Figure 177. Removing the 11 screws that secure the system board

6. Slide the system board to the front of the computer and then carefully lift the system board out of the

chassis.

7. Remove the microprocessor from the failing system board and install it on the new system board. See

“Microprocessor” on page 190.

Chapter 9.Hardware removal and installation 195

8. Install the new system board into the chassis by aligning the 11 screw holes in the new system board

with the corresponding mounting studs on the chassis. Then, install the 11 screws in the sequence as

shown to secure the new system board.

Figure 178. Installing the 11 screws to secure the system board

9. Reinstall all parts that you have removed one by one in the reversed sequence as you remove them.

Refer to the information that you have noted down and the related topics in Chapter 9 “Hardware

removal and installation” on page 99.

10. Connect all cables to the new system board. See “Parts on the system board” on page 42.

11. Connect the external cables and the power cord to the computer.

The failing system board must be returned with a microprocessor socket cover to protect the pins during

shipping and handling. Install the microprocessor socket covers removed from the new system board on the

failing system board.

To install the microprocessor socket cover, do the following:

Note: Your microprocessor socket and cover might look slightly different from the illustration.

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1. Pivot the microprocessor retainer downward to close the retainer.

Figure 179. Closing the microprocessor retainer

2. Gently press down the small handle 2, and then push the handle inward to secure it. Then gently press

down the small handle 1 and push the handle inward to lock the microprocessor retainer into position.

Figure 180. Securing the microprocessor in the socket

3. Position the microprocessor socket cover on the microprocessor socket as shown. Then, lower the

socket cover straight down into the microprocessor socket on the system board.

Figure 181. Installing the microprocessor socket cover

What to do next:

• To work with another piece of hardware, go to the appropriate section.

• To complete the installation or replacement, go to “Completing the parts replacement” on page 198.

Chapter 9.Hardware removal and installation 197

Completing the parts replacement

CAUTION:

After replacing a CRU, reinstall all protective covers, including the computer cover, before connecting

power and operating the computer. This action is important to help prevent unexpected electrical

shock and help ensure the containment of an unexpected fire that could happen under extremely rare

conditions.

After completing the installation or replacement for all parts, reinstall the computer cover and reconnect

cables. Depending on the parts you installed or replaced, you might need to confirm the updated information

in the Setup Utility program. Refer to “Using the Setup Utility program” on page 67.

To reinstall the computer cover and reconnect cables to your computer, do the following:

1. Ensure that all components have been reassembled correctly and that no tools or loose screws are left

inside your computer. See “Computer components” on page 35 for the locations of various components

in your computer.

2. Ensure that the cables are routed correctly before reinstalling the computer cover. Keep cables clear of

the hinges and sides of the computer chassis to avoid interference with reinstalling the computer cover.

3. Hold the computer cover with the handle and position the computer cover on the chassis. Insert the tabs

on the bottom of the cover into the corresponding slots on the chassis.

Figure 182. Positioning the computer cover

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4. Pivot the cover downward. Press the handle of the computer cover so that the computer cover is locked.

Figure 183. Reinstalling the computer cover

5. Place the computer in an upright position.

6. If there is any locking device available, lock the computer cover. See “Locking your computer” on page

61.

7. Reconnect the external cables and power cords to the corresponding connectors on the computer. See

“Hardware locations” on page 29.

8. Update the configuration of your computer if necessary. See “Using the Setup Utility program” on page

67.

9. If a newly installed hardware component does not work correctly, update the device driver.

Chapter 9.Hardware removal and installation 199

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Chapter 10. Getting information, help, and service

This chapter provides information about getting help and support from Lenovo.

Information resources

You can use the information in this section to access useful resources relating to your computing needs.

Accessing the user guide in various languages

To access the user guide in various languages, go to:

https://support.lenovo.com

Windows help system

The Windows help system provides you with detailed information about using the Windows operating

system.

To access the Windows help system, do the following:

1. Click the Start button to open the Start menu.

2. Click Get Help.

Note: Using online help for Windows 10 requires an active Internet connection.

Safety and warranty

The Safety, Warranty, and Setup Guide provided with your computer contains important safety information,

product warranty terms, initial setup procedure, and legal notices. Ensure that you read and understand all

safety information in the Safety, Warranty, and Setup Guide before using your computer.

In addition, read and understand Chapter 1 “Read this first: Important safety information” on page 1 before

using your computer. This preface provides additional safety information that applies to topics and tasks

described in this User Guide.

Lenovo Web site

The Lenovo Web site (https://www.lenovo.com) provides up-to-date information and services to help you buy,

upgrade, and maintain your computer. You also can do the following:

• Shop for desktop and notebook computers, monitors, projectors, upgrades, and accessories for your

computer, and special offers.

• Purchase additional services, such as support for hardware, operating systems, programs, network setup

and configuration, and custom installations.

• Purchase upgrades and extended hardware repair services.

• Access troubleshooting and support information for your computer model and other supported products.

• Find a Service Provider located near you.

Lenovo Support Web site

Technical support information is available on the Lenovo Support Web site at:

https://support.lenovo.com

This Web site is updated with the latest support information such as the following:

• Drivers and software

• Diagnostic solutions

• Product and service warranty

• Product and parts details

• User guides and manuals

• Knowledge base and frequently asked questions

• Lenovo Support phone numbers

Frequently asked questions

For the answers to frequently asked questions about your computer, go to:

http://www.lenovo.com/support/faq

Help and service

This section provides information about obtaining help and service.

Calling for service

During the warranty period, you can get help and information by telephone through the Customer Support

Center. For the warranty period of your computer, go to https://www.lenovo.com/warranty-status. For a list of

Lenovo Support phone numbers, go to https://pcsupport.lenovo.com/supportphonelist.

Note: Phone numbers are subject to change without notice. If the number for your country or region is not

provided, contact your Lenovo reseller or Lenovo marketing representative.

The following services are available during the warranty period:

• Problem determination - Trained service personnel are available to assist you with determining a

hardware problem and deciding what action is necessary to fix the problem.

• Hardware repair - If the problem is caused by hardware under warranty, trained service personnel are

available to provide the applicable level of service.

• Engineering Change management - There might be changes that are required after a product has been

sold. Lenovo or your reseller will make selected Engineering Changes (ECs) that apply to your hardware

available.

These items are not covered by the warranty:

• Replacement or use of parts not manufactured for or by Lenovo or non-warranted Lenovo parts

• Identification of software problem sources

• Configuration of BIOS as part of an installation or upgrade

• Changes, modifications, or upgrades to device drivers

• Installation and maintenance of network operating systems (NOS)

• Installation and maintenance of programs

If possible, be at your computer when you call. Have the following information available:

• Machine type and model

• Serial numbers of your hardware products

• Description of the problem

• Exact wording of any error messages

• Hardware and software configuration information

202 P520 Hardware Maintenance Manual

Using other services

You might travel with your computer or relocate it to a country or region where the machine type for your

desktop or notebook computer is sold. In such a situation, your computer might be eligible for International

Warranty Service, which automatically entitles you to obtain warranty service throughout the warranty period.

Service will be performed by service providers authorized to perform warranty service.

Service methods and procedures vary by country, and some services might not be available in all countries.

International Warranty Service is delivered through the method of service (such as depot, carry-in, or on-site

service) that is provided in the servicing country. Service centers in certain countries might not be able to

service all models of a particular machine type. In some countries, fees and restrictions might apply at the

time of service.

To determine whether your computer is eligible for International Warranty Service and to view a list of the

countries or regions where service is available, go to https://support.lenovo.com.

For technical assistance with the installation of or questions related to Service Packs for your preinstalled

Microsoft Windows product, go to https://support.microsoft.com. You also can contact the Lenovo Customer

Support Center for help. Some fees might apply.

Purchasing additional services

During and after the warranty period, you can purchase additional services. Examples of these additional

services include:

• Support for hardware, operating systems, and programs

• Network setup and configuration services

• Upgraded or extended hardware repair services

• Custom installation services

Service availability and service name might vary by country or region. For more information about these

services, go to the Lenovo Web site at:

https://www.lenovo.com

Chapter 10.Getting information, help, and service 203

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Appendix A. System memory speed

The Intel Xeon® microprocessor families compatible with this ThinkStation computer feature an integrated

memory controller, which provides the microprocessor with direct access to the system memory. Because of

this design, the system memory speed will be determined by a number of factors, including the

microprocessor model and the type, speed, size (capacity), and number of DIMMs installed.

Notes:

• The actual system memory speed of the memory modules varies depending on the microprocessor

model. For example, your computer comes with 2666 MT/s memory modules, but microprocessor only

supports up to 2400 MT/s memory modules. Then the system memory speed will be no faster than 2400

MT/s.

• The microprocessor models supported in your computer might vary. For a list of supported

microprocessor models, contact the Lenovo Customer Support Center.

206 P520 Hardware Maintenance Manual

Appendix B. Supplemental information about the Ubuntu

operating system

In limited countries or regions, Lenovo offers customers an option to order computers with the preinstalled

Ubuntu® operating system.

If the Ubuntu operating system is available on your computer, read the following information before you use

the computer. Ignore any information related to Windows-based programs, utilities, and Lenovo preinstalled

applications in this documentation.

Accessing the Lenovo Limited Warranty

This product is covered by the terms of the Lenovo Limited Warranty (LLW), version L505-0010-02 08/2011.

You can view the LLW in a number of languages from the following Web site. Read the Lenovo Limited

Warranty at:

https://www.lenovo.com/warranty/llw_02

The LLW also is preinstalled on the computer. To access the LLW, go to the following directory:

/opt/Lenovo

If you cannot view the LLW either from the Web site or from your computer, contact your local Lenovo office

or reseller to obtain a printed version of the LLW.

Accessing the Ubuntu help system

The Ubuntu help system provides information about how to use the Ubuntu operating system. To access the

help system from the Unity, move your pointer to the Launch bar, and then click the Help icon. If you cannot

find the Help icon from the Launch bar, click the Search icon, and type Help to search it.

To learn more about the Ubuntu operating system, go to:

https://www.ubuntu.com

Getting support information

If you need help, service, technical assistance, or more information about the Ubuntu operating system or

other applications, contact the provider of the Ubuntu operating system or the provider of the application. If

you need the service and support for hardware components shipped with your computer, contact Lenovo.

For more information about how to contact Lenovo, refer to the User Guide and Safety, Warranty, and Setup

Guide.

To access the latest User Guide and Safety, Warranty, and Setup Guide, go to:

https://support.lenovo.com

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Appendix C. Regulatory and TCO Certified information of

countries and regions

The latest compliance information is available at:

https://www.lenovo.com/compliance

Export classification notice

This product is subject to the United States Export Administration Regulations (EAR) and has an Export

Classification Control Number (ECCN) of 5A992.c. It can be re-exported except to any of the embargoed

countries in the EAR E1 country list.

Electronic emissions notices

Federal Communications Commission Declaration of Conformity

The following information refers to Lenovo personal computer machine types 30BE, 30BF, 30BQ, and 30DC.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference in a residential installation. This equipment generates, uses, and can radiate radio frequency

energy and, if not installed and used in accordance with the instructions, may cause harmful interference to

radio communications. However, there is no guarantee that interference will not occur in a particular

installation. If this equipment does cause harmful interference to radio or television reception, which can be

determined by turning the equipment off and on, the user is encouraged to try to correct the interference by

one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult an authorized dealer or service representative for help.

Lenovo is not responsible for any radio or television interference caused by using other than specified or

recommended cables and connectors or by unauthorized changes or modifications to this equipment.

Unauthorized changes or modifications could void the user's authority to operate the equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)

this device may not cause harmful interference, and (2) this device must accept any interference received,

including interference that may cause undesired operation.

Responsible Party:

Lenovo (United States) Incorporated

1009 Think Place - Building One

Morrisville, NC 27560

Phone Number: 919-294-5900

Industry Canada Class B emission compliance statement

CAN ICES-3(B)/NMB-3(B)

European Union (EU) / United Kingdom (UK) – Radio Equipment Compliance

EU Contact: Lenovo (Slovakia), Landererova 12, 811 09 Bratislava, Slovakia

UK contact: Lenovo, Redwood, Crockford Lane, Basingstoke, RG24 8WQ, UK.

This product is in conformity with all the requirements and essential norms that apply to EU Council Radio

Equipment Directive 2014/53/EU on the approximation of the laws of the Member States, as well as the UK

Radio Equipment Regulations SI 2017 No. 1206, relating to radio equipment.

The full text of the system EU declaration of conformity is available at:

https://www.lenovo.com/us/en/compliance/eu-doc

The full text of the system UK declaration of conformity is available at:

https://www.lenovo.com/us/en/compliance/uk-doc

Lenovo cannot accept responsibility for any failure to satisfy the protection requirements resulting from a

non-recommended modification of the product, including the installation of option cards from other

manufacturers. This product has been tested and found to comply with the limits for Class B equipment

according to European and UK compliance standards. The limits for Class B equipment were derived for

typical residential environments to provide reasonable protection against interference with certified

communication devices.

European Union (EU) / United Kingdom (UK) — Electromagnetic Compatibility Compliance

This product is in conformity with the protection requirements of EU Council Directive 2014/30/EU on the

approximation of the laws of the Member States, as well as UK SI 2016 No. 1091 with amendments, relating

to the electromagnetic compatibility limits for Class B equipment. These Class B requirements are intended

to offer adequate protection to broadcast services within residential environments.

German Class B compliance statement

Deutschsprachiger EU Hinweis:

Hinweis für Geräte der Klasse B EU-Richtlinie zur Elektromagnetischen Verträglichkeit

Dieses Produkt entspricht den Schutzanforderungen der EU-Richtlinie 2014/30/EU zur Angleichung der

Rechtsvorschriften über die elektromagnetische Verträglichkeit in den EU-Mitgliedsstaaten und hält die

Grenzwerte der Klasse B der Norm gemäß Richtlinie.

Um dieses sicherzustellen, sind die Geräte wie in den Handbüchern beschrieben zu installieren und zu

betreiben. Des Weiteren dürfen auch nur von der Lenovo empfohlene Kabel angeschlossen werden. Lenovo

übernimmt keine Verantwortung für die Einhaltung der Schutzanforderungen, wenn das Produkt ohne

Zustimmung der Lenovo verändert bzw. wenn Erweiterungskomponenten von Fremdherstellern ohne

Empfehlung der Lenovo gesteckt/eingebaut werden.

Deutschland:

Einhaltung des Gesetzes über die elektromagnetische Verträglichkeit von Betriebsmitteln

210 P520 Hardware Maintenance Manual

Dieses Produkt entspricht dem „Gesetz über die elektromagnetische Verträglichkeit von Betriebsmitteln“

EMVG (früher „Gesetz über die elektromagnetische Verträglichkeit von Geräten“). Dies ist die Umsetzung der

EMV EU-Richtlinie 2014/30/EU in der Bundesrepublik Deutschland.

Zulassungsbescheinigung laut dem Deutschen Gesetz über die elektromagnetische Verträglichkeit von

Betriebsmitteln, EMVG vom 20. Juli 2007 (früher Gesetz über die elektromagnetische Verträglichkeit von

Geräten), bzw. der EMV EU Richtlinie 2014/30/EU, für Geräte der Klasse B.

Dieses Gerät ist berechtigt, in Übereinstimmung mit dem Deutschen EMVG das EG-Konformitätszeichen -

CE - zu führen. Verantwortlich für die Konformitätserklärung nach Paragraf 5 des EMVG ist die Lenovo

(Deutschland) GmbH, Meitnerstr. 9, D-70563 Stuttgart.

Informationen in Hinsicht EMVG Paragraf 4 Abs. (1) 4:

Das Gerät erfüllt die Schutzanforderungen nach EN 55024 und EN 55032 Klasse B.

Korean wireless-radio compliance information

Japan VCCI Class B compliance statement

Japan compliance statement for products which connect to the power mains with rated current less

than or equal to 20 A per phase

Japan notice for ac power cord

The ac power cord shipped with your product can be used only for this specific product. Do not use the ac

power cord for other devices.

Lenovo product service information for Taiwan

Keyboard and mouse compliance statement for Taiwan

Eurasian compliance mark

Appendix C. Regulatory and TCO Certified information of countries and regions 211

Brazil audio notice

Ouvir sons com mais de 85 decibéis por longos períodos pode provocar danos ao sistema auditivo.

Mexico wireless-radio compliance information

Advertencia: En Mexico la operación de este equipo estásujeta a las siguientes dos condiciones: (1) es

posible que este equipo o dispositivo no cause interferencia perjudicial y (2) este equipo o dispositivo debe

aceptar cualquier interferencia, incluyendo la que pueda causar su operación no deseada.

Additional regulatory information

For additional regulatory information, refer to the Regulatory Notice shipped with your computer. Depending

on the configuration of your computer and the country or region where the computer was purchased, you

might have received additional printed regulatory notices. All regulatory notices are available on the Lenovo

Support Web site in electronic format. To access electronic copies of the documentation, go to https://

support.lenovo.com.

212 P520 Hardware Maintenance Manual

Appendix D. WEEE and recycling information of countries and

regions

Lenovo encourages owners of information technology (IT) equipment to responsibly recycle their equipment

when it is no longer needed. Lenovo offers various programs and services to assist equipment owners in

recycling their IT products. The latest environmental information is available at:

https://www.lenovo.com/ecodeclaration

Important battery recycling and WEEE information

Take back and recycling information for WEEE and batteries/accumulators in the European Union and the

United Kingdom

The crossed-out wheeled bin marking applies only to countries with WEEE and batteries waste regulations

including the European Union (EU), and United Kingdom (UK).

Appliances and batteries/accumulators are labeled in accordance with local regulations concerning waste

electrical and electronic equipment (WEEE) and waste batteries and waste accumulators. These regulations

determine the framework for the return and recycling of used appliances and used batteries/accumulators as

applicable within each geography. This label is applied to various products to indicate that the product is not

to be thrown away, but rather put in the established collection systems for reclaiming these end of life

products.

The label on the battery may also include a chemical symbol for the metal concerned in the battery (Pb for

lead, Hg for mercury, and Cd for cadmium).

Users of electrical and electronic equipment (EEE) and users of batteries/accumulators with the crossed-out

wheeled bin marking must not dispose of end of life products as unsorted municipal waste, but use the

collection framework available to them for the return, recycle, and recovery of WEEE and waste batteries/

accumulators and to minimize any potential effects of EEE and batteries on the environment and human

health due to the presence of hazardous substances.

Lenovo electrical and electronic equipment (EEE) may contain parts and components, which at end-of-life

might qualify as hazardous waste.

EEE and waste electrical and electronic equipment (WEEE) can be delivered free of charge to the place of

sale or any distributor that sells electrical and electronic equipment of the same nature and function as the

used EEE or WEEE.

Before placing electrical and electronic equipment (EEE) in the waste collection stream or in waste collection

facilities, the end user of equipment containing batteries and/or accumulators must remove those batteries

and accumulators for separate collection.

Dispose of lithium batteries and battery packs from Lenovo products:

A coin-cell type lithium battery might be installed inside your Lenovo product. You can find details about the

battery in the product documentation. If the battery needs to be replaced, contact your place of purchase or

contact Lenovo for service. If you need to dispose of a lithium battery, insulate it with vinyl tape, contact your

place of purchase or a waste-disposal operator, and follow their instructions.

Your Lenovo device might contain a lithium-ion battery pack or a nickel metal hydride battery pack. You can

find details on the battery pack in the product documentation. If you need to dispose of a battery pack,

insulate it with vinyl tape, contact Lenovo sales, service, or your place of purchase, or a waste-disposal

operator, and follow their instructions. You also can refer to the instructions provided in the user guide for

your product.

For proper collection and treatment, go to:

https://www.lenovo.com/environment

For additional WEEE information, go to:

https://www.lenovo.com/recycling

WEEE information for Hungary

Lenovo, as a producer, bears the cost incurred in connection with the fulfillment of Lenovo’s obligations

under Hungary Law No. 197/2014 (VIII.1.) subsections (1)-(5) of section 12.

EU ErP (EcoDesign) Directive (2009/125/EC) - external power adapters

(Regulation (EU) 2019/1782), Ecodesign for Energy-Related Products

Regulations 2010 - UK SI 2010 No. 2617 (Ext PSU), SI 2020 No. 485 (Ntwk

Standby), SI 2014 No. 1290 as amended

Lenovo products are compliant with the EU EcoDesign (ErP) Directive and UK EcoDesign for Energy-related

Products Regulations. Refer to the following for details. For EU, refer to the system declaration https://

www.lenovo.com/us/en/compliance/eu-doc, and for UK refer to the system declaration https://

www.lenovo.com/us/en/compliance/uk-doc.

Recycling information for Japan

Collecting and recycling a disused Lenovo computer or monitor

If you are a company employee and need to dispose of a Lenovo computer or monitor that is the property of

the company, you must do so in accordance with the Law for Promotion of Effective Utilization of Resources.

Computers and monitors are categorized as industrial waste and should be properly disposed of by an

industrial waste disposal contractor certified by a local government. In accordance with the Law for

Promotion of Effective Utilization of Resources, Lenovo Japan provides, through its PC Collecting and

Recycling Services, for the collecting, reuse, and recycling of disused computers and monitors. For details,

visit the Lenovo Web site at https://www.lenovo.com/recycling/japan. Pursuant to the Law for Promotion of

Effective Utilization of Resources, the collecting and recycling of home-used computers and monitors by the

manufacturer was begun on October 1, 2003. This service is provided free of charge for home-used

computers sold after October 1, 2003. For details, visit the Lenovo Web site at https://www.lenovo.com/

recycling/japan.

Disposing of Lenovo computer components

Some Lenovo computer products sold in Japan may have components that contain heavy metals or other

environmental sensitive substances. To properly dispose of disused components, such as a printed circuit

board or drive, use the methods described above for collecting and recycling a disused computer or monitor.

214 P520 Hardware Maintenance Manual

Disposing of disused lithium batteries from Lenovo computers

A button-shaped lithium battery is installed inside your Lenovo computer to provide power to the computer

clock while the computer is off or disconnected from the main power source. If you need to replace it with a

new one, contact your place of purchase or contact Lenovo for service. If you need to dispose of a disused

lithium battery, insulate it with vinyl tape, contact your place of purchase or an industrial-waste-disposal

operator, and follow their instructions. Disposal of a lithium battery must comply with local ordinances and

regulations.

Recycling information for Brazil

Declarações de Reciclagem no Brasil

Descarte de um Produto Lenovo Fora de Uso

Equipamentos elétricos e eletrônicos não devem ser descartados em lixo comum, mas enviados à pontos de

coleta, autorizados pelo fabricante do produto para que sejam encaminhados e processados por empresas

especializadas no manuseio de resíduos industriais, devidamente certificadas pelos orgãos ambientais, de

acordo com a legislação local.

A Lenovo possui um canal específico para auxiliá-lo no descarte desses produtos. Caso você possua um

produto Lenovo em situação de descarte, ligue para o nosso SAC ou encaminhe um e-mail para:

reciclar@lenovo.com, informando o modelo, número de série e cidade, a fim de enviarmos as instruções

para o correto descarte do seu produto Lenovo.

Battery recycling information for Taiwan

Appendix D. WEEE and recycling information of countries and regions 215

216 P520 Hardware Maintenance Manual

Appendix E. Restriction of Hazardous Substances (RoHS)

Directive of countries and regions

The latest environmental information about Lenovo products is available at:

https://www.lenovo.com/ecodeclaration

European Union (EU) / United Kingdom (UK) RoHS

This Lenovo product, with included parts (cables, cords, and so on) meets the requirements of EU Directive

2011/65/EU (as amended by Directive 2015/863/EU) and UK SI 2012 No. 3032 on the restriction of the use of

certain hazardous substances in electrical and electronic equipment ("RoHS recast" or "RoHS 2").

For more information about Lenovo worldwide compliance on RoHS, go to:

https://www.lenovo.com/rohs-communication

Turkish RoHS

The Lenovo product meets the requirements of the Republic of Turkey Directive on the Restriction of the Use

of Certain Hazardous Substances in Waste Electrical and Electronic Equipment (WEEE).

Ukraine RoHS

India RoHS

RoHS compliant as per E-Waste (Management) Rules.

Mainland China RoHS

Taiwan RoHS

218 P520 Hardware Maintenance Manual

Appendix F. ENERGY STAR model information

ENERGY STAR® is a joint program of the U.S. Environmental Protection Agency and the U.S. Department of

Energy aimed at saving money and protecting the environment through energy efficient products and

practices.

Lenovo is proud to offer our customers products with an ENERGY STAR compliant designation. Some

models of the following machine types have been designed and tested to conform to the ENERGY STAR

program requirement for computers at the time of manufacture: 30BE0009US and 30BE0008US. For more

information about ENERGY STAR ratings for Lenovo computers, go to:

http://www.lenovo.com

By using ENERGY STAR compliant products and taking advantage of the power-management features of

your computer, you reduce the consumption of electricity. Reduced electrical consumption contributes to

potential financial savings, a cleaner environment, and the reduction of greenhouse gas emissions.

For more information about ENERGY STAR, go to:

http://www.energystar.gov

Lenovo encourages you to make efficient use of energy an integral part of your day-to-day operations. To

help in this endeavor, set the following power-management features to take effect when your computer has

been inactive for a specified duration:

Table 1. ENERGY STAR power-management features

Windows 10 operating system

Power plan: Default

• Turn off the display: After 10 minutes

• Put the computer to sleep: After 25 minutes

• Advanced power settings:

– Turn off hard disk drives: After 20 minutes

– Hibernate: Never

To awaken your computer from a Sleep mode, press any key on your keyboard.

To change power settings, do the following:

1. Click the Start button to open the Start menu.

2. Click Windows System ➙ Control Panel.

3. View Control Panel by Large icons or Small icons, and then click Power Options.

4. Follow the instructions on the screen.

220 P520 Hardware Maintenance Manual

Appendix G. Notices

Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult

your local Lenovo representative for information on the products and services currently available in your

area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that

Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service

that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user's

responsibility to evaluate and verify the operation of any other product, program, or service.

Lenovo may have patents or pending patent applications covering subject matter described in this

document. The furnishing of this document does not give you any license to these patents. You can send

license inquiries, in writing, to:

Lenovo (United States), Inc.

8001 Development Drive

Morrisville, NC 27560

U.S.A.

Attention: Lenovo Director of Licensing

LENOVO PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS

OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow

disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to

you.

This information could include technical inaccuracies or typographical errors. Changes are periodically made

to the information herein; these changes will be incorporated in new editions of the publication. Lenovo may

make improvements and/or changes in the products and/or the programs described in this publication at any

time without notice.

The products described in this document are not intended for use in implantation or other life support

applications where malfunction may result in injury or death to persons. The information contained in this

document does not affect or change Lenovo product specifications or warranties. Nothing in this document

shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo or

third parties. All information contained in this document was obtained in specific environments and is

presented as an illustration. The result obtained in other operating environments may vary.

Lenovo may use or distribute any of the information you supply in any way it believes appropriate without

incurring any obligation to you.

Any references in this publication to non-Lenovo Web sites are provided for convenience only and do not in

any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of the

materials for this Lenovo product, and use of those Web sites is at your own risk.

Any performance data contained herein was determined in a controlled environment. Therefore, the result

obtained in other operating environments may vary significantly. Some measurements may have been made

on development-level systems and there is no guarantee that these measurements will be the same on

generally available systems. Furthermore, some measurements may have been estimated through

extrapolation. Actual results may vary. Users of this document should verify the applicable data for their

specific environment.

222 P520 Hardware Maintenance Manual

Appendix H. Trademarks

LENOVO, LENOVO logo, THINKSTATION, and THINKSTATION logo are trademarks of Lenovo.

Microsoft, Windows, and Windows Media are trademarks of the Microsoft group of companies.

Intel, Thunderbolt, and Xeon are trademarks of Intel Corporation in the U.S. and/or other countries.

Linux is a registered trademark of Linus Torvalds.

DisplayPort and Mini DisplayPort are trademarks of the Video Electronics Standards Association.

Ubuntu is a registered trademark of Canonical Ltd.

224 P520 Hardware Maintenance Manual

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