Read this first: Important safety information
Chapter 1. Product overview
Chapter 2. Using your computer
Chapter 3. You and your computer
Chapter 4. Security
Chapter 5. Advanced configuration
Chapter 6. Troubleshooting, diagnostics, and recovery
Chapter 7. Hardware removal and installation
Chapter 8. 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 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 P520c User Manual

Displayed below is the user manual for P520c by Lenovo which is a product in the PCs/Workstations category. This manual has pages.

Related Manuals

Lenovo P520c Manual

P520c User Guide

Machine Types: 30BY, 30BX, and 30C0

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

this first: Important safety information” on page iii and Appendix G “Notices” on page 133.

Seventh Edition (November 2019)

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

Read this first: Important safety

information . . . . . . . . . . . . . . . . iii

Before using this manual . . . . . . . . . . . . iii

Service and upgrades . . . . . . . . . . . . . iii

Static electricity prevention . . . . . . . . . . . iv

Power cords and power adapters . . . . . . . . . iv

Extension cords and related devices. . . . . . . . v

Plugs and outlets . . . . . . . . . . . . . . . v

External devices . . . . . . . . . . . . . . . v

Heat and product ventilation . . . . . . . . . . . v

Computer placement notices . . . . . . . . . . vi

Operating environment . . . . . . . . . . . . . vi

Laser compliance statement . . . . . . . . . . . vii

Hazardous energy statement . . . . . . . . . . vii

Lithium coin-cell battery notice . . . . . . . . . . vii

Using earphones, headphones, or a headset . . . viii

Cleaning and maintenance . . . . . . . . . . . ix

Chapter 1. Product overview . . . . . . 1

Hardware locations . . . . . . . . . . . . . . 1

Front view . . . . . . . . . . . . . . . . 1

Rear view . . . . . . . . . . . . . . . . 2

Computer components . . . . . . . . . . . 5

Parts on the system board . . . . . . . . . . 6

Internal storage drives . . . . . . . . . . . 8

Machine type and model label . . . . . . . . 9

Computer features. . . . . . . . . . . . . . 10

Computer specifications . . . . . . . . . . . 13

Programs . . . . . . . . . . . . . . . . . 14

Accessing a program on your computer . . . 14

An introduction to Lenovo programs . . . . . 14

Chapter 2. Using your computer . . . 17

Registering your computer . . . . . . . . . . 17

Setting the computer volume . . . . . . . . . 17

Using a disc . . . . . . . . . . . . . . . . 17

Guidelines about using the optical drive . . . 17

Handling and storing a disc . . . . . . . . 17

Playing and removing a disc . . . . . . . . 18

Recording a disc . . . . . . . . . . . . 18

Connecting to a network . . . . . . . . . . . 19

Chapter 3. You and your computer . . 21

Arranging your workspace . . . . . . . . . . 21

Glare and lighting . . . . . . . . . . . . 21

Air circulation . . . . . . . . . . . . . . 21

Electrical outlet locations and cable lengths . . 21

Comfort . . . . . . . . . . . . . . . . 21

Accessibility information . . . . . . . . . . . 22

Cleaning your computer . . . . . . . . . . . 25

Maintenance . . . . . . . . . . . . . . . . 25

Basic maintenance tips . . . . . . . . . . 25

Good maintenance practices . . . . . . . . 25

Keeping your computer current . . . . . . . 26

Moving your computer . . . . . . . . . . . . 26

Chapter 4. Security . . . . . . . . . . 27

Locking your computer . . . . . . . . . . . . 27

Locking the computer cover . . . . . . . . 27

Attaching a Kensington-style cable lock . . . 27

Viewing and changing security settings in the

Setup Utility program . . . . . . . . . . . . 28

Using passwords and Windows accounts . . . . 28

Using fingerprint authentication . . . . . . . . 28

Using the cover presence switch . . . . . . . . 29

Using firewalls . . . . . . . . . . . . . . . 29

Protecting data against viruses . . . . . . . . . 29

Using the Smart USB Protection function . . . . . 30

Computrace Agent software embedded in

firmware (for selected models) . . . . . . . . . 30

Trusted Platform Module (TPM). . . . . . . . . 30

Intel BIOS guard . . . . . . . . . . . . . . 30

Chapter 5. Advanced

configuration . . . . . . . . . . . . . . 31

Using the Setup Utility program . . . . . . . . 31

Starting the Setup Utility program . . . . . . 31

Changing the display mode of the Setup Utility

program . . . . . . . . . . . . . . . . 31

Changing the display language of the Setup

Utility program . . . . . . . . . . . . . 31

Enabling or disabling a device . . . . . . . 32

Enabling or disabling the automatic power-on

of your computer . . . . . . . . . . . . 32

Enabling or disabling the ErP LPS compliance

mode . . . . . . . . . . . . . . . . . 32

Enabling or disabling the configuration change

detection . . . . . . . . . . . . . . . 33

Changing the BIOS settings before installing a

new operating system . . . . . . . . . . 33

Using BIOS passwords . . . . . . . . . . 33

Selecting a startup device . . . . . . . . . 35

Changing the fan speed level . . . . . . . . 36

Exiting the Setup Utility program . . . . . . 36

Updating and recovering the BIOS . . . . . . . 36

Configuring RAID . . . . . . . . . . . . . . 37

An Introduction to RAID . . . . . . . . . . 38

Configuring RAID with Intel RSTe . . . . . . 38

Configuring RAID with AVAGO MegaRAID

Configuration Utility . . . . . . . . . . . 39

Configuring RAID with Intel Virtual RAID on

CPU . . . . . . . . . . . . . . . . . 41

Chapter 6. Troubleshooting,

diagnostics, and recovery . . . . . . . 45

Basic procedure for resolving computer

problems . . . . . . . . . . . . . . . . . 45

Troubleshooting . . . . . . . . . . . . . . 45

Startup problems . . . . . . . . . . . . 45

Audio problems . . . . . . . . . . . . . 46

CD or DVD problems . . . . . . . . . . . 47

Intermittent problems. . . . . . . . . . . 48

Storage drive problems . . . . . . . . . . 48

Ethernet LAN problems . . . . . . . . . . 48

Wireless LAN problem . . . . . . . . . . 49

Bluetooth problems . . . . . . . . . . . 50

Performance problems . . . . . . . . . . 50

Serial connector problem . . . . . . . . . 51

USB device problems . . . . . . . . . . 52

Software and driver problems . . . . . . . 52

Diagnosing problems . . . . . . . . . . . . 52

Recovery information . . . . . . . . . . . . 54

Chapter 7. Hardware removal and

installation . . . . . . . . . . . . . . . 57

Handling static-sensitive devices . . . . . . . . 57

Preparing your computer and removing the

computer cover . . . . . . . . . . . . . . . 57

Removing and installing hardware . . . . . . . 58

External options . . . . . . . . . . . . . 58

Front bezel . . . . . . . . . . . . . . . 59

Power button . . . . . . . . . . . . . . 59

PCIe card . . . . . . . . . . . . . . . 60

Memory module . . . . . . . . . . . . . 67

Optical drive . . . . . . . . . . . . . . 69

Storage drive in the front-access storage

enclosure . . . . . . . . . . . . . . . 72

M.2 solid-state drive . . . . . . . . . . . 79

Device in the multi-drive conversion kit . . . . 83

Coin-cell battery. . . . . . . . . . . . . 94

Cover presence switch . . . . . . . . . . 95

Power supply assembly . . . . . . . . . . 96

Heat-sink-and-fan assembly . . . . . . . . 98

Primary storage drive . . . . . . . . . . . 100

Secondary storage drive . . . . . . . . . 102

2.5-inch storage drive . . . . . . . . . . 104

Front fan assembly. . . . . . . . . . . . 107

Rear fan assembly . . . . . . . . . . . . 108

Completing the parts replacement . . . . . . . 110

Chapter 8. Getting information, help,

and service . . . . . . . . . . . . . . . 113

Information resources . . . . . . . . . . . . 113

Accessing the user guide in various

languages . . . . . . . . . . . . . . . 113

Windows help system . . . . . . . . . . 113

Safety and warranty . . . . . . . . . . . 113

Lenovo Web site. . . . . . . . . . . . . 113

Lenovo Support Web site . . . . . . . . . 113

Frequently asked questions . . . . . . . . 114

Help and service . . . . . . . . . . . . . . 114

Calling for service . . . . . . . . . . . . 114

Using other services . . . . . . . . . . . 115

Purchasing additional services . . . . . . . 115

Appendix A. System memory

speed. . . . . . . . . . . . . . . . . . 117

Appendix B. Supplemental

information about the Ubuntu operating

system . . . . . . . . . . . . . . . . . 119

Appendix C. Regulatory information

of countries and regions . . . . . . . . 121

Appendix D. WEEE and recycling

information of countries and

regions . . . . . . . . . . . . . . . . . 125

Appendix E. Restriction of

Hazardous Substances (RoHS) Directive

of countries and regions . . . . . . . . 129

Appendix F. ENERGY STAR model

information . . . . . . . . . . . . . . . 131

Appendix G. Notices. . . . . . . . . . 133

Appendix H. Trademarks . . . . . . . 135

ii P520c User Guide

Read this first: Important safety information

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

Before using this manual

CAUTION:

Before using this manual, be sure to read and understand all the related safety information for this

product. Refer to the information in this section and the safety information in the Safety, Warranty, and

Setup Guide that you received with this product. Reading and understanding this safety information

reduces the risk of personal injury and damage to your product.

If you no longer have a copy of the Safety, Warranty, and Setup Guide, you can obtain a Portable Document

Format (PDF) version from the Lenovo Support Web site at https://support.lenovo.com. The Lenovo Support

Web site also provides the Safety, Warranty, and Setup Guide and this User Guide in additional languages.

Service and upgrades

Do not attempt to service a product yourself unless instructed to do so by the Customer Support Center or

your documentation. Only use a Service Provider who is approved to repair your particular product.

Note: Some computer parts can be upgraded or replaced by the customer. Upgrades typically are referred

to as options. Replacement parts approved for customer installation are referred to as Customer

Replaceable Units, or CRUs. Lenovo provides documentation with instructions when it is appropriate for

customers to install options or replace CRUs. You must closely follow all instructions when installing or

replacing parts. The Off state of a power indicator does not necessarily mean that voltage levels inside a

product are zero. Before you remove the covers from a product equipped with a power cord, always ensure

that the power is turned off and that the product is unplugged from any power source. For more information

about CRUs, refer to Chapter 7 “Hardware removal and installation” on page 57. If you have any questions or

concerns, contact the Customer Support Center.

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.

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.

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.

CAUTION:

When replacing CRUs, be cautious of sharp edges or corners that might cause injury. If you suffer an

injury, seek medical care immediately.

Static electricity prevention

Static electricity, although harmless to you, can seriously damage computer components and options.

Improper handling of static-sensitive parts can damage the part. When you unpack an option or CRU, do not

open the static-protective package containing the part until the instructions direct you to install it.

When you handle options or CRUs, or perform any work inside the computer, take the following precautions

to avoid static-electricity damage:

• Limit your movement. Movement can cause static electricity to build up around you.

• Always handle components carefully. Handle adapters, memory modules, and other circuit boards by the

edges. Never touch exposed circuitry.

• Prevent others from touching components.

• When you install a static-sensitive option or CRU, 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 in the package and your body.

• When possible, remove the static-sensitive part from the static-protective packaging and install the part

without setting it down. When this is not possible, place the static-protective packaging on a smooth, level

surface and place the part on it.

• Do not place the part on the computer cover or other metal surface.

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.

iv P520c User Guide

Extension cords and related devices

Ensure that extension cords, surge protectors, uninterruptible power supplies, and power strips that you use

are rated to handle the electrical requirements of the product. Never overload these devices. If power strips

are used, the load should not exceed the power strip input rating. Consult an electrician for more information

if you have questions about power loads, power requirements, and input ratings.

Plugs and outlets

If a receptacle (power outlet) that you intend to use with your computer equipment appears to be damaged

or corroded, do not use the outlet until it is replaced by a qualified electrician.

Do not bend or modify the plug. If the plug is damaged, contact the manufacturer to obtain a replacement.

Do not share an electrical outlet with other home or commercial appliances that draw large amounts of

electricity. Otherwise, unstable voltage might damage your computer, data, or connected devices.

Some products are equipped with a three-pronged plug. This plug fits only into a grounded electrical outlet.

This is a safety feature. Do not defeat this safety feature by trying to insert it into a non-grounded outlet. If

you cannot insert the plug into the outlet, contact an electrician for an approved outlet adapter or to replace

the outlet with one that enables this safety feature. Never overload an electrical outlet. The overall system

load should not exceed 80 percent of the branch circuit rating. Consult an electrician for more information if

you have questions about power loads and branch circuit ratings.

Be sure that the power outlet you are using is properly wired, easily accessible, and located close to the

equipment. Do not fully extend power cords in a way that will stress the cords.

Be sure that the power outlet provides the correct voltage and current for the product you are installing.

Carefully connect and disconnect the equipment from the electrical outlet.

External devices

Do not connect or disconnect any external device cables other than Universal Serial Bus (USB) cables while

the computer power is on; otherwise, you might damage your computer. To avoid possible damage to

connected devices, wait at least five seconds after the computer is shut down to disconnect external

devices.

Heat and product ventilation

Computers, power adapters, and many accessories can generate heat when turned on and when batteries

are charging. Always follow these basic precautions:

• Do not leave your computer, power adapter, or accessories in contact with your lap or any part of your

body for an extended period when the products are functioning or when the battery is charging. Your

computer, power adapter, and many accessories produce some heat during normal operation. Extended

contact with the body could cause discomfort or, potentially, a skin burn.

• Do not charge the battery or operate your computer, power adapter, or accessories near flammable

materials or in explosive environments.

• Ventilation slots, fans, and heat sinks are provided with the product for safety, comfort, and reliable

operation. These features might inadvertently become blocked by placing the product on a bed, sofa,

carpet, or other flexible surface. Never block, cover, or disable these features.

Inspect your desktop computer for dust accumulation at least once every three months. Before inspecting

your computer, turn off the power and unplug the computer's power cord from the electrical outlet; then

remove any dust from vents and perforations in the bezel. If you notice external dust accumulation, then

examine and remove dust from the inside of the computer including heat sink inlet fins, power supply vents,

and fans. Always turn off and unplug the computer before opening the cover. If possible, avoid operating

your computer within two feet of high-traffic areas. If you must operate your computer in or near a high-traffic

area, inspect and, if necessary, clean your computer more frequently.

For your safety and to maintain optimum computer performance, always follow these basic precautions with

your desktop computer:

• Keep the cover closed whenever the computer is plugged in.

• Regularly inspect the outside of the computer for dust accumulation.

• Remove dust from vents and any perforations in the bezel. More frequent cleanings might be required for

computers in dusty or high-traffic areas.

• Do not restrict or block any ventilation openings.

• Do not store or operate your computer inside furniture, as this might increase the risk of overheating.

• Airflow temperatures into the computer should not exceed 35°C (95°F).

• Do not install air filtration devices. They may interfere with proper cooling.

Computer placement notices

Inappropriate computer placement might cause harm to children.

• Place the computer on a sturdy piece of low-rise furniture or furniture that has been anchored.

• Do not place the computer at the edge of the furniture.

• Keep the computer cables out of the reach of children.

• Some items, such as toys, might attract children. Keep such items away from the computer.

Supervise children in rooms where the above safety instructions cannot be fully implemented.

Operating environment

The optimal environment in which to use your computer is 10°C–35°C (50°F–95°F) with humidity ranging

between 35% and 80%. If your computer is stored or transported in temperatures less than 10°C (50°F),

allow the cold computer to rise slowly to an optimal operating temperature of 10°C–35°C (50°F–95°F) before

use. This process could take two hours in extreme conditions. Failure to allow your computer to rise to an

optimal operating temperature before use could result in irreparable damage to your computer.

If possible, place your computer in a well-ventilated and dry area without direct exposure to sunshine.

Keep electrical appliances such as an electric fan, radio, high-powered speakers, air conditioner, and

microwave oven away from your computer because the strong magnetic fields generated by these

appliances can damage the monitor and data on the storage drive.

vi P520c User Guide

Do not place any beverages on top of or beside the computer or other connected devices. If liquid is spilled

on or in the computer or a connected device, a short circuit or other damage might occur.

Do not eat or smoke over your keyboard. Particles that fall into your keyboard can cause damage.

Laser compliance statement

CAUTION:

When laser products (such as CD-ROMs, DVD 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.

Hazardous energy statement

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.

Lithium coin-cell battery notice

DANGER

Danger of explosion if battery is incorrectly replaced.

When replacing the lithium coin-cell battery, use only the same type or equivalent type that is recommended

by the manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed

of. Swallowing the lithium coin-cell battery will cause chocking or severe internal burns in just two hours and

might even result in death.

Keep batteries away from children. If the lithium coin-cell battery is swallowed or placed inside any part of

the body, seek medical care immediately.

Do not:

• Throw or immerse into water

• Heat to more than 100 °C (212°F).

• Repair or disassemble

• Leave in an extremely low air pressure environment

• Leave in an extremely high-temperature environment

• Crush, puncture, cut, or incinerate

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

The following statement applies to users in the state of California, U.S.A.

California Perchlorate Information:

Products containing manganese dioxide lithium coin-cell batteries may contain perchlorate.

Perchlorate Material - special handling may apply, see https://www.dtsc.ca.gov/hazardouswaste/

perchlorate/.

Using earphones, headphones, or a headset

• If your computer has both a headphone connector and an audio line-out connector, always use the

headphone connector for earphones, headphones, or a headset. However, the headphone connector

does not support the microphone of the headset.

• If your computer has both a headset connector and an audio line-out connector, always use the headset

connector for earphones, headphones, or a headset.

CAUTION:

Excessive sound pressure from earphones and headphones can cause hearing loss. Adjustment of

the equalizer to maximum increases the earphone and headphone output voltage and the sound

pressure level. Therefore, to protect your hearing, adjust the equalizer to an appropriate level.

Excessive use of headphones or earphones for a long period of time at high volume can be dangerous if the

output of the headphone or earphone connectors do not comply with specifications of EN 50332-2. The

headphone output connector of your computer complies with EN 50332-2 Sub clause 7. This specification

limits the computer’s maximum wide band true RMS output voltage to 150 mV. To help protect against

hearing loss, ensure that the headphones or earphones you use also comply with EN 50332-2 (Clause 7

Limits) or a wide band characteristic voltage of 75 mV. Using headphones that do not comply with EN 50332-

2 can be dangerous due to excessive sound pressure levels.

If your Lenovo computer came with headphones or earphones in the package, as a set, the combination of

the headphones or earphones and the computer already complies with the specifications of EN 50332-1. If

different headphones or earphones are used, ensure that they comply with EN 50332-1 (Clause 6.5

Limitation Values). Using headphones that do not comply with EN 50332-1 can be dangerous due to

excessive sound pressure levels.

viii P520c User Guide

Cleaning and maintenance

Keep your computer and workspace clean. Shut down the computer and then disconnect the power cord

before cleaning the computer. Do not spray any liquid detergent directly on the computer or use any

detergent containing flammable material to clean the computer. Spray the detergent on a soft cloth and then

wipe the computer surfaces.

xP520c User Guide

Chapter 1. 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 USB 3.0 connectors (2)

3 Storage drive activity indicator 4 Power button

5 Power indicator 6 Microphone connector

7 Headphone connector 8 SD card slot

1 Optical-drive eject/close button

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

2 USB 3.0 connectors (2)

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

printer.

3 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): The storage drives are not in use or no data is being transferred.

4 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.

5 Power indicator

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

6 Microphone connector

Connect the microphone to your computer through the microphone connector.

7 Headphone connector

Connect the headphone to your computer through the headphone connector.

8 SD card slot

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

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.

2P520c User Guide

Figure 2. Rear view

1 Security-lock slot 2 Ethernet connector

3 Padlock loop 4 Serial connector (available on some models)

5 Audio line-in connector 6 PCIe card area*

7 Audio line-out connector 8 Microphone connector

9 USB 2.0 connectors (2) 10 USB 3.0 connectors (4)

11 Serial connector (available on some models) 12 PS/2 keyboard connector

13 PS/2 mouse connector 14 Power-cord connector

Notes:

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

Interconnect 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:

– DisplayPort® connector

– Digital Visual Interface (DVI) connector

– Mini DisplayPort® connector

Chapter 1.Product overview 3

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 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 27.

2 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.

3 Padlock loop

Attach a padlock to secure your computer. For more information, see “Locking the computer cover” on page

27.

4 11 Serial connector (available on some models)

Connect an external modem, a serial printer, or other devices that use a 9-pin serial connector to the serial

connector.

5 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.

6 PCIe card area

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

computer model, the preinstalled cards might vary.

7 Audio line-out connector

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

headphones.

8 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.

4P520c User Guide

9 USB 2.0 connector(2)

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

printer.

10 USB 3.0 connector(4)

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

printer.

12 PS/2 keyboard connector

Use this connector to attach a Personal System/2 (PS/2) keyboard.

13 PS/2 mouse connector

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

14 Power-cord connector

Connect the power cord to your computer for power supply.

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 57.

Chapter 1.Product overview 5

Figure 3. Component locations

1 Heat-sink-and-fan assembly 2 Memory module

3 Optical drive (available on some models) 4 Card reader

5 Front audio and USB assembly 6 Front bezel

7 M.2 solid-state drive assembly (available on some

models)

8 Front fan assembly

9 Storage drives 10 Graphics card (available on some models)

11 Cover presence switch (also called intrusion switch)

(available on some models)

12 Rear fan assembly

13 Power supply assembly

Parts on the system board

The following illustration shows the locations of the parts on the system board.

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

6P520c User Guide

Figure 4. System board part locations

1 4-pin power connector 2 Memory slot

3 Memory slot 4 Microprocessor fan connector

5 Microprocessor 6 Memory slot

7 Memory slot 8 Flex bay 1 fan connector

9 Flex bay 2 fan connector 10 Thermal sensor connector

11 4-pin SATA power connector 12 14-pin power connector

13 4-pin SATA power connector 14 M.2 solid-state drive slot 1

15 M.2 solid-state drive slot 2 16 VROC connector

17 Front-fan connector 18 Clear CMOS /Recovery jumper

19 Coin-cell battery 20 SATA 6 connector

21 SATA 4 connector 22 SATA 5 connector

23 SATA 2 connector 24 SATA 1 connector

25 SATA 3 connector 26 Thunderbolt™ control connector

27 SATA 7 connector (eSATA connector) 28 Front-bezel connector (for connecting LED indicators

and the power button)

29 USB 2.0 connector (for connecting the Wi-Fi

connector or 9-in-1 card reader connector)

30 Front USB 3.0 connector (for connecting USB

connectors on the front panel)

31 Internal USB 3.0 connector 32 Storage-drive activity indicator connector

33 Four-digit-diagnostics display connector 34 Trusted Cryptography Module (TCM) connector

Chapter 1.Product overview 7

35 Internal-speaker connector 36 Front-audio connector

37 PCIe x4 card slot 38 PCIe x16 card slot

39 PCIe x8 card slot 40 PCIe x16 card slot (graphics card available on some

models)

41 Cover presence switch connector (intrusion switch

connector)

42 Rear-fan connector

43 SATA Serial (COM) connector

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 install or replace 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 “Removing and

installing hardware” on page 58 for instructions on how to install or replace 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 5. Storage drive bay locations

1 Primary flex bay 2 Secondary flex bay (available on some models)

3 SD card slot 4 Secondary storage drive bay

8P520c User Guide

5 Primary storage drive bay 6 PCIe card slots (4)

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

1 2 Flex bays (2)

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

• Flex module

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

– 15-in-1 card reader

– External Serial Advanced Technology Attachment (eSATA) connector

– Four-digit diagnostics display

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

– Slim optical drive

– Front Thunderbolt adapter kit

– USB-C connector

• Front-access storage enclosure

• Multi-drive conversion kit

Depending on your computer model, the following parts might be preinstalled 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 SD card slot

An SD card is installed in some models.

4 5 Storage drive bays (2)

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

6 PCIe card slots (4)

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

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

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

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.

Chapter 1.Product overview 9

Figure 6. 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.

Memory

Your computer supports up to four double data rate 4 (DDR4) error correction code (ECC) registered dual

inline memory modules (RDIMMs).

10 P520c User Guide

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)

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 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

• Internal speaker

• Microphone connector

Input/Output (I/O) features

• 100/1000 Mbps Ethernet connector

• 9-pin serial connector

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

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

graphics card)

• eSATA connector

• Institute of Electrical and Electronics Engineer (IEEE) 1394 connector (available on some models)

• PS/2 keyboard connector

• PS/2 mouse connector

• SATA connectors

• USB connectors

Expansion

• Flex bay

• M.2 solid-state drive slots

Chapter 1.Product overview 11

• Memory slots

• PCIe x4 card slot

• PCIe x8 card slot

• PCIe x16 card slots

• SD card slot

• Storage drive bays

Power supply

500-watt automatic 92% 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 32.

• 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.

• 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 SM BIOS 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.

12 P520c User Guide

• 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

• Startup sequence control

• Startup without a keyboard or mouse

• Support for a computer cover lock

• Support for a Kensington-style cable lock

• Support for a padlock

• 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: 175 mm (6.89 inches)

• Height: 375.5 mm (14.78 inches)

• Depth: 426 mm (16.77 inches)

Weight

Maximum configuration as shipped: 14.5 kg (31.97 lb)

Environment

• Air temperature:

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

Chapter 1.Product overview 13

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.

14 P520c User Guide

• Lenovo Vantage

Your computer’s best features and capabilities should be easy to access and understand. With Lenovo

Vantage, they are.

Use Lenovo Vantage to do the following:

– 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.

– Look up warranty status (online).

– Access User Guide and helpful articles.

Notes:

– The available features vary depending on the computer model.

– Lenovo Vantage 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.

• ThinkStation Diagnostics

The ThinkStation Diagnostics program enables you to troubleshoot and resolve computer problems. The

program notifies you of any issues detected by the real-time hardware diagnostic monitoring function. The

program also provides the details of the issue, analyzes possible causes, and provides solutions.

Chapter 1.Product overview 15

16 P520c User Guide

Chapter 2. 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 14.

3. Follow the instructions on the screen.

• Burn a disc from an ISO file.

18 P520c User Guide

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 14.

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 2.Using your computer 19

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.

20 P520c User Guide

Chapter 3. 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

iv.

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. This section provides information about the ways these users can get

the most out of their computer experience. You also can get the most up-to-date accessibility information

from the following Web site:

https://www.lenovo.com/accessibility

Keyboard shortcuts

The following list contains keyboard shortcuts that can help make your computer easier to use.

Note: Depending on your keyboard, some of the following keyboard shortcuts might not be available.

• Windows logo key + U: Open Ease of Access Center

• Right Shift for eight seconds: Turn on or turn off Filter Keys

• Shift five times: Turn on or turn off Sticky Keys

• Num Lock for five seconds: Turn on or turn off Toggle Keys

• Left Alt+Left Shift+Num Lock: Turn on or turn off Mouse Keys

• Left Alt+Left Shift+PrtScn (or PrtSc): Turn on or turn off High Contrast

For more information, go to https://windows.microsoft.com/, and then search using any of the following

keywords: keyboard shortcuts, key combinations, shortcut keys.

Ease of Access Center

Ease of Access Center on the Windows operating system enables you to configure your computer to suit

your physical and cognitive needs.

22 P520c User Guide

To use Ease of Access Center, do the following:

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

2. Click Settings ➙ Ease of Access.

3. Choose the appropriate tool by following the instructions on the screen.

Ease of Access Center mainly includes the following tools:

• Magnifier

Magnifier is a useful utility that enlarges the entire screen or part of the screen so that you can see the

items better.

• Narrator

Narrator is a screen reader that reads aloud what is displayed on the screen and describes events such as

error messages.

• On-Screen Keyboard

To input data into your computer using a mouse, joystick, or other pointing devices instead of a physical

keyboard, you can use On-Screen Keyboard.

• High Contrast

High Contrast is a feature that heightens the color contrast of some text and images on your screen. As a

result, those items are more distinct and easier to identify.

• Personalized keyboard

Adjust keyboard settings to make your keyboard easier to use. For example, you can use your keyboard

to control the pointer and type certain key combinations easier.

• Personalized mouse

Adjust mouse settings to make your mouse easier to use. For example, you can change the pointer

appearance and make it easier to manage windows with the mouse.

Speech Recognition

Speech Recognition enables you to control your computer by voice.

Using only your voice, you can start programs, open menus, click objects on the screen, dictate text into

documents, and write and send e-mails. Everything you do with the keyboard and mouse can be done with

only your voice.

To use Speech Recognition, 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 Speech Recognition.

4. Follow the instructions on the screen.

Screen-reader technologies

Screen-reader technologies are primarily focused on software program interfaces, help information systems,

and various online documents. For additional information about screen readers, see the following:

• Using PDFs with screen readers:

https://www.adobe.com/accessibility.html?promoid=DJGVE

• Using the JAWS screen reader:

https://www.freedomscientific.com/Products/Blindness/JAWS

• Using the NVDA screen reader:

Chapter 3.You and your computer 23

https://www.nvaccess.org/

Screen resolution

You can make the text and images on your screen easier to read by adjusting the screen resolution of your

computer.

To adjust the screen resolution, do the following:

1. Right-click a blank area on the desktop.

2. Click Display settings ➙ Display.

3. Follow the instructions on the screen.

Note: Setting the resolution too low might prevent some items from fitting on the screen.

Customizable item size

You can make the items on your screen easier to read by changing the item size.

• To change the item size temporarily, use the Magnifier tool in Ease of Access Center.

• To change the item size permanently, do the following:

– Change the size of all the items on your screen. Do the following:

1. Right-click a blank area on the desktop.

2. Click Display settings ➙ Display.

3. Follow the on-screen instructions to change the item size. For some applications, your

configuration might not take effect until you sign out and then sign in again.

– Change the size of the items on a Web page.

Press and hold Ctrl, and then press the plus-sign key (+) to enlarge or the minus-sign key (-) to reduce

the text size.

– Change the size of the items on the desktop or a window.

Note: This function might not work on some windows.

If your mouse has a wheel, press and hold Ctrl, and then scroll the wheel to change the item size.

Industry-standard connectors

Your computer provides industry-standard connectors that enable you to connect assistive devices.

For more information about the location and function of each connector, see “Hardware locations” on page

TTY/TDD conversion modem

Your computer supports the use of a text telephone (TTY) or the telecommunications device for the deaf

(TDD) conversion modem. The modem must be connected between your computer and a TTY/TDD

telephone. Then, you can type a message on your computer and send it to the telephone.

Documentation in accessible formats

Lenovo provides electronic documentation in accessible formats, such as properly tagged PDF files or

HyperText Markup Language (HTML) files. Lenovo electronic documentation is developed to ensure that

visually impaired users can read the documentation through a screen reader. Each image in the

documentation also includes adequate alternative text so that visually impaired users can understand the

image when they use a screen reader.

24 P520c User Guide

Cleaning your computer

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

this first: Important safety information” on page iii. Properly remove or install your computer cover. See

Chapter 7 “Hardware removal and installation” on page 57.

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.

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 54.

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

computer current” on page 26.

Chapter 3.You and your computer 25

• 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 54 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 Lenovo Vantage to check the available update packages. If the latest update package is available,

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

To open the Lenovo Vantage program, see “Accessing a program on your computer” on page 14.

• 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 25.

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.

26 P520c User Guide

Chapter 4. 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 comes with a padlock loop so that the computer cover cannot be removed when a

padlock is installed.

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

Figure 7. Installing a padlock

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. The cable lock also locks the buttons

used to open the computer cover. This is the same type of lock used with many notebook computers. You

can order such a cable lock directly from Lenovo by searching for Kensington at:

http://www.lenovo.com/support

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

Figure 8. 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 31.

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 31 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:

• To use BIOS passwords, see “Using BIOS passwords” on page 33.

• 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

28 P520c User Guide

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 10 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 31.

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 7 “Hardware removal and installation” on

page 57.

2. Start and then exit the Setup Utility program. See “Starting the Setup Utility program” on page 31 and

“Exiting the Setup Utility program” on page 36.

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.

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.

Chapter 4.Security 29

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 31.

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 (for selected

models)

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.

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.

30 P520c User Guide

Chapter 5. 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 33.

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 31.

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 31.

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 31.

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 31.

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 31.

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 32.

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:

32 P520c User Guide

• 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 32.

• 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 31.

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 31.

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 31 and

“Exiting the Setup Utility program” on page 36.

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 31.

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 5.Advanced configuration 33

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 31.

2. Select Security.

3. Depending on the password type, select Set Power-On Password, Set Administrator Password, or

Hard Disk Password and press Enter.

34 P520c User Guide

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 34.

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 7 “Hardware removal and installation” on page 57.

3. Locate the Clear Complementary Metal Oxide Semiconductor (CMOS) /Recovery jumper on the system

board. See “Hardware locations” on page 1.

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 7 “Hardware removal and

installation” on page 57.

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 31.

3. Select Startup.

4. Follow the instructions on the right side of the screen to change the startup device sequence.

Chapter 5.Advanced configuration 35

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 35.

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 31.

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.

36 P520c User Guide

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 18.

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 7 “Hardware removal and installation” on page 57.

3. Locate the Clear CMOS /Recovery jumper on the system board. See “Hardware locations” on page 1.

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 7

“Hardware removal and installation” on page 57.

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 36.

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 before the BIOS update.

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

Chapter 5.Advanced configuration 37

• 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

– 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 31.

b. Select Devices ➙ PCH SATA Configuration and press Enter.

c. Select Configure SATA as and press Enter. Then, select RAID and press Enter.

38 P520c User Guide

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 31.

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 31.

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.

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 31.

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:

Chapter 5.Advanced configuration 39

• 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

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 31.

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

40 P520c User Guide

• 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 31.

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:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 31.

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:

Chapter 5.Advanced configuration 41

• An upgrade key module is connected to the Virtual RAID on CPU (VROC) connector on the system board.

See “Hardware locations” on page 1.

• 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 31.

b. Select Advanced ➙ Intel(R) VMD technology and press Enter.

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 31.

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

42 P520c User Guide

• 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 31.

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 31.

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.

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.

Chapter 5.Advanced configuration 43

44 P520c User Guide

Chapter 6. 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 32.

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 45 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 “Diagnosing problems” on page 52. If the diagnostic program does not

resolve your problem, continue with the next step.

5. Recover your operating system. See “Recovery information” on page 54.

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 8 “Getting information, help, and service” on

page 113.

Troubleshooting

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

this first: Important safety information” on page iii.

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 35.

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.

46 P520c User Guide

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 36 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 6.Troubleshooting, diagnostics, and recovery 47

• 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 35.

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 7 “Hardware removal and installation” on page

57.

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.

48 P520c User Guide

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 26.

• 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 26.

Chapter 6.Troubleshooting, diagnostics, and recovery 49

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. Do the following:

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 26.

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.

50 P520c User Guide

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 7 “Hardware removal and installation” on page 57. 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 6.Troubleshooting, diagnostics, and recovery 51

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 30.

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 26.

• 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 26.

Diagnosing problems

Many computer problems can be solved without outside assistance. If you experience a problem with your

computer, the first place to start is the troubleshooting information in your computer documentation. If you

suspect a software problem, see the documentation, including readme files and help information systems,

52 P520c User Guide

that come with the operating system or program. ThinkStation computers come with a set of diagnostic

programs that you can use to help you identify hardware problems.

Diagnosing problems with Lenovo Vantage

Lenovo Vantage is preinstalled on your computer and is ready to run.

Note: If you are unable to isolate and repair the problem yourself after running Lenovo Vantage, save and

print the log files created by the program. You need the log files when you speak to a Lenovo technical

support representative.

Lenovo Vantage supports the hardware scan function. It combines diagnostic tests, system information

collection, security status, and support information, along with hints and tips for optimal system

performance.

The troubleshooting information or the diagnostic programs might tell you that you need additional or

updated device drivers or other software. You can get the latest technical information and download device

drivers and updates from the Lenovo Support Web site at:

https://support.lenovo.com

Diagnosing problems with ThinkStation Diagnostics

ThinkStation Diagnostics is preinstalled on your computer and also is available for download at:

https://www.lenovo.com/diags

ThinkStation Diagnostics enables you to troubleshoot and resolve computer problems. The program notifies

you of any issues detected by the real-time hardware diagnostic monitoring function. The program also

provides the details of the issue, analyzes possible causes, and provides solutions.

Hardware diagnostics

The hardware diagnostics function enables your computer to monitor hardware components in real time for

potential issues or errors without impacting the performance. When an issue or error is detected, hardware

diagnostic information is presented in one of the following ways:

• If the ThinkStation Diagnostics application is installed and running on your computer, an issue or error

message is displayed in the Windows notification area. Go to ThinkStation Diagnostics for more

information and suggested solutions.

• If the ThinkStation Diagnostics application is not installed or running on your computer, an error code is

displayed on the seven-segment display on the front of the computer. For detailed information, do either

of the following:

– Check the error code at:

https://thinkworkstationsoftware.com/diags

– If the Lenovo PC Diagnostics application is installed in your smartphone, use the application to transfer

the error code from the computer to the smartphone for further analysis. The application is available for

download at both Google Play and iTunes App Store.

The hardware diagnostics function is enabled on your computer by default. If you want to disable the

function, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 31.

2. From the main interface, select Advanced ➙ Diagnostics, and then press Enter.

3. Select Real-time Diagnostics Monitoring and press Enter. Then select Disabled 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.

Chapter 6.Troubleshooting, diagnostics, and recovery 53

Hardware diagnostics

The hardware diagnostics function enables your computer to monitor hardware components in real time for

potential issues or errors without impacting the performance. When an issue or error is detected, hardware

diagnostic information is presented in either of the following ways:

• If the ThinkStation Diagnostics application is installed and running on your computer, an issue or error

message is displayed in the Windows notification area. Go to ThinkStation Diagnostics for more

information and suggested solutions.

• If the ThinkStation Diagnostics application is not installed or running on your computer, depending on

your computer configuration, do either of the following:

1. If your computer has the four-digit diagnostic display installed, an error code is displayed on the four-

digit diagnostic display on the front of the computer. Check the error code at the following Web site:

https://thinkworkstationsoftware.com/diags

2. If the signal diagnostic LED indicator is available on your computer, the diagnostic LED indicator

blinks to indicate that an issue or error is detected. Then you can use the Lenovo PC Diagnostics

application installed in your smartphone to transfer the error code from the computer to the

smartphone for further analysis. The application is available for download at both Google Play and

iTunes App Store.

The hardware diagnostics function is enabled on your computer by default. If you want to disable the

function, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 31.

2. From the main interface, select Advanced ➙ Diagnostics, and then press Enter.

3. Select Real-time Diagnostics Monitoring and press Enter. Then select Disabled 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.

Hardware diagnostics

The hardware diagnostics function enables your computer to monitor hardware components in real time for

potential issues or errors without impacting the performance. When an issue or error is detected, hardware

diagnostic information is presented in either of the following ways:

• If the ThinkStation Diagnostics application is installed and running on your computer, an issue or error

message is displayed in the Windows notification area. Go to ThinkStation Diagnostics for more

information and suggested solutions.

• If your computer has the four-digit diagnostic display installed, an error code is displayed on the four-digit

diagnostic display on the front of the computer. Check the error code at the following Web site:

https://thinkworkstationsoftware.com/diags

The hardware diagnostics function is enabled on your computer by default. If you want to disable the

function, do the following:

1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 31.

2. From the main interface, select Advanced ➙ Diagnostics, and then press Enter.

3. Select Real-time Diagnostics Monitoring and press Enter. Then select Disabled 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.

Recovery information

This section provides instructions on how to recover your operating system.

54 P520c User Guide

Note: If a device does not work correctly after recovering the operating system, update the device driver.

See “Keeping your computer current” on page 26.

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 36. 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 114.

Chapter 6.Troubleshooting, diagnostics, and recovery 55

56 P520c User Guide

Chapter 7. 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 “Read

this first: Important safety information” on page iii.

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 27.

3. Remove the two screws that secure the computer cover.

4. Press the cover-release button on the side of the computer and slide the cover to the rear of the

computer to remove the cover.

Figure 9. Removing the computer cover

Notes:

• Depending on your computer model, some of the hardware parts in the removing or installing section

might not be available.

• Use computer parts provided only by Lenovo.

• When removing or installing 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 “Read

this first: Important safety information” on page iii.

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.

When installing an external option, see “Hardware locations” on page 1 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.

58 P520c User Guide

Front bezel

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

this first: Important safety information” on page iii.

To remove and install the front bezel, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 57.

2. Release the three plastic tabs on the left side and pivot the front bezel outward to remove it from the

computer.

Figure 10. Removing the front bezel

3. To install the front bezel, align the three plastic tabs on the right side of the front bezel with the

corresponding holes in the chassis. Then pivot the front bezel inwards until it snaps into position on the

left side.

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 110.

Power button

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

this first: Important safety information” on page iii.

To remove and install the power button, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 57.

2. Remove the front bezel. See “Front bezel” on page 59.

3. Locate the power button. See “Computer components” on page 5.

4. Disconnect the power button cable from the power button connector on the system board. See “Parts

on the system board” on page 6.

Chapter 7.Hardware removal and installation 59

5. Remove the screw that secures the power button to the front bezel. Then, remove the power button

from the front bezel.

Figure 11. Removing the power button

6. Align the screw hole in the power button with the corresponding hole in the front bezel. Then install the

screw to secure the power button to the front bezel.

Figure 12. Installing the power button

7. Connect the power button cable to the front-bezel connector on the system board. See “Parts on the

system board” on page 6.

8. Reinstall the front bezel. See “Front bezel” on page 59.

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 110.

PCIe card

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

this first: Important safety information” on page iii.

60 P520c User Guide

Your computer has one PCIe x4 card slot, one PCIe x8 card slot, and two PCIe x16 card slots (graphics card

available on some models).

Half-length PCIe card

To remove or install a half-length PCIe card, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 57.

2. At the rear of the computer, press the release button 1 to open the card latch 2.

Figure 13. Opening the PCIe card latch

3. Locate the PCIe card slot. See “Parts on the system board” on page 6.

4. If the PCIe card slot is a PCIe x16 card slot, press the retaining latch 1 as shown to disengage the latch.

Figure 14. Disengaging the retaining latch

Chapter 7.Hardware removal and installation 61

5. To remove a half-length PCIe card, grasp the old card that is currently installed and gently pull it out of

the slot.

Figure 15. Removing a PCIe card

Notes:

• If the card is connected to other device, disconnect the cables from the card.

• 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.

6. To install a half-length PCIe card, do the following:

a. Remove the new PCIe card from its static-protective package.

b. If necessary, remove the appropriate metal slot cover.

c. Install the new card into the card slot on the system board until it is securely seated. See “Parts on

the system board” on page 6.

Note: If you are installing a PCIe x16 graphics card, ensure that the memory-slot retaining clips are

closed before you install the card to avoid any interference during the installation.

Figure 16. Installing a PCIe card

62 P520c User Guide

d. Pivot the card latch to the closed position to secure the PCIe card.

Figure 17. Closing the PCIe card latch

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 110.

Full-length PCIe card

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 57.

2. Lay the computer on its side for easier access to the PCIe card slots.

3. At the rear of the computer, press the release button 1 to open the card latch 2.

Figure 18. Opening the PCIe card latch

4. Locate the PCIe card slot. See “Parts on the system board” on page 6.

Chapter 7.Hardware removal and installation 63

5. If the PCIe card slot is a PCIe x16 card slot, press the retaining latch 1 as shown to disengage the latch.

Figure 19. Disengaging the retaining latch

6. To remove a full-length PCIe card, do the following:

a. Pivot the tab on the front fan assembly outward to open the latch inside.

Figure 20. Opening the latch on the front fan assembly

64 P520c User Guide

b. Grasp the old card that is currently installed and gently pull it out of the slot.

Notes:

• If the card is connected to other device, disconnect the cables from the card.

• 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 21. Removing the full-length PCIe card

7. To install a full-length PCIe card, do the following:

a. Remove the new full-length PCIe card from its static-protective package.

Chapter 7.Hardware removal and installation 65

b. Align the notch on the new full-length PCIe card with the slot key in a PCIe x16 card slot on the

system board. Then, insert the new card downward into the card slot until it is secured tightly. See

“Parts on the system board” on page 6.

Note: Ensure that the memory-slot retaining clips are closed before you install the card to avoid any

interference during the installation.

Figure 22. Installing a full-length PCIe card

c. Pivot the tab on the front fan assembly inward to close the latch inside.

Figure 23. Closing the latch on the front fan assembly

66 P520c User Guide

8. Pivot the card latch to the closed position to secure the full-length PCIe card.

Figure 24. Closing the PCIe card latch

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 110.

Memory module

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

this first: Important safety information” on page iii.

Your computer has four memory slots for installing or replacing DDR4 RDIMMs that provide up to a

maximum of 128 GB system memory. When installing or replacing a memory module, use the following

guidelines:

• Use any of DDR4 ECC RDIMMs for your computer.

• Use 8 GB, 16 GB, or 32 GB ECC RDIMMs in any combination up to a maximum of 128 GB system

memory.

Chapter 7.Hardware removal and installation 67

• Install memory modules in the alphabetic order as shown.

Figure 25. 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 57.

2. Lay the computer on its side for easier access to the system board.

3. Locate the memory slots. See “Parts on the system board” on page 6.

4. Remove any parts that might prevent your access to the memory slots. Depending on your computer

model, you might need to remove the PCIe x16 graphics card for easier access to the memory slots. See

“Full-length PCIe card” on page 63.

5. To remove a memory module, open the retaining clips and gently pull the memory module out of the

memory slot.

Figure 26. Removing a memory module

68 P520c User Guide

6. To install a memory module, do the following:

a. Open the retaining clips of the memory slot into which you want to install the memory module.

Figure 27. Opening the retaining clips

b. Position the new memory module over the memory slot. Ensure that the notch 1 on the memory

module is aligned with the key 2 in the slot. Push the memory module straight down into the slot until

the retaining clips completely close.

Figure 28. Installing a memory module

7. Reinstall the PCIe x16 graphics card if you have removed it.

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 110.

Optical drive

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

this first: Important safety information” on page iii.

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

• 5.25-inch flex module

• Front-access storage enclosure

• Multi-drive conversion kit

Chapter 7.Hardware removal and installation 69

• 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 57.

2. Remove the front bezel. See “Front bezel” on page 59.

3. If you are removing an optical drive, do the following:

a. Disconnect cables from the rear of the optical drive, press the release button 1, and then slide the

optical drive out of the chassis.

Figure 29. Removing the optical drive

b. Remove the optical-drive retainer from the left side of the optical drive.

4. If you are installing an optical drive, do the following:

70 P520c User Guide

a. Locate the optical-drive retainer from the left side of the computer. Push the retainer downwards to

unlock the retainer. Then lift the retainer out of the chassis.

Figure 30. Removing the optical-drive retainer from the computer

b. Install the optical-drive retainer onto the left side of the new optical drive.

Figure 31. Installing the optical-drive retainer

c. If necessary, remove the plastic panel in the front bezel for the desired flex bay.

Chapter 7.Hardware removal and installation 71

d. Slide the new optical drive into the flex bay from the front of the computer until the optical drive

snaps into position.

Figure 32. Installing the optical drive

e. Connect the cables to the rear of the new optical drive.

Figure 33. Connecting the cables to the rear of the new optical drive

5. Reinstall the front bezel. See “Front bezel” on page 59.

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 110.

Storage drive in the front-access storage enclosure

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

this first: Important safety information” on page iii.

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:

72 P520c User Guide

• 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 57 and “Parts on the system board” on page 6 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 34. 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 35. Removing the bracket from the front-access storage enclosure

Chapter 7.Hardware removal and installation 73

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 36. Removing the 3.5-inch storage drive from the bracket

5. To install a new 3.5-inch storage drive into the front-access storage enclosure, do the following:

74 P520c User Guide

a. Flex both sides of the bracket and align pins 1 on the bracket with the corresponding holes in the

new 3.5-inch storage 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.

Figure 37. Installing the 3.5-inch storage drive into the bracket

b. Slide the bracket with the new 3.5-inch storage drive into the front-access storage enclosure until it

snaps into position.

Figure 38. Installing the 3.5-inch storage drive into the front-access storage enclosure

c. Press the notch to secure the enclosure cover and lock the enclosure cover with the key.

What to do next:

Chapter 7.Hardware removal and installation 75

• 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 110.

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 39. 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 40. 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 41. Removing the 2.5-inch storage drive from the bracket

76 P520c User Guide

b. Pivot the tab 1 of the metal adapter upward. Then, push the adapter as shown until the four tabs on

the adapter slide into the notches 2. Pivot the adapter as shown to remove it with the storage drive

from the converter.

Figure 42. Removing the adapter from the converter

c. Flex both sides of the adapter to release the four pins 1 from the storage drive. Then, remove the

storage drive from the adapter.

Figure 43. Removing the storage drive from the adapter

5. To install a new 2.5-inch storage drive, do the following:

Chapter 7.Hardware removal and installation 77

a. Note the orientation of the connector on the new storage drive. Then, flex both sides of the adapter

and align the four pins 1 with the corresponding holes in the storage drive.

Note: Do not touch the circuit board (if accessible) of the 2.5-inch storage drive.

Figure 44. Installing the storage drive into the adapter

b. Align the four tabs on the adapter with the corresponding notches 1 in the converter. Then, slide the

storage drive as shown until the tab 2 snaps into position. The adapter with the storage drive is

installed into the converter.

Figure 45. Installing the adapter into the converter

78 P520c User Guide

c. 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.

Figure 46. Installing the converter with the 2.5-inch storage drive into the plastic bracket

d. Slide the plastic bracket with the new 2.5-inch storage drive into the front-access storage enclosure

until it snaps into position.

Figure 47. Installing the plastic bracket with the 2.5-inch storage drive into the front-access storage enclosure

e. Press the notch to secure the enclosure cover and lock the enclosure cover with the key.

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 110.

M.2 solid-state drive

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

this first: Important safety information” on page iii.

Chapter 7.Hardware removal and installation 79

M.2 solid-state drive in the storage drive bracket

To remove or install the M.2 solid-state drive in the storage drive bracket, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 57.

2. To remove the failing M.2 solid-state drive, do the following:

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 48. Removing the M.2 solid-state drive carrier

80 P520c User Guide

b. Remove two screws and slide the cover as shown to remove the cover from the carrier.

Figure 49. Removing the cover of the M.2 solid-state drive carrier

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 50. Removing the M.2 solid-state drive

3. To install the M.2 solid-state drive, do the following:

Chapter 7.Hardware removal and installation 81

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 51. Installing the M.2 solid-state drive

b. Reinstall the cover of the carrier as shown and reinstall the screws to secure the cover.

Figure 52. Installing the cover of the M.2 solid-state drive carrier

82 P520c User Guide

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 53. Reinstalling the M.2 solid-state drive carrier

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 110.

Device in the multi-drive conversion kit

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

this first: Important safety information” on page iii.

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, hybrid drive, or solid-state 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 57.

Chapter 7.Hardware removal and installation 83

2. Ensure that all the cables are disconnected from the kit. Remove the kit from the front of the computer.

See “Optical drive” on page 69.

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 54. Removing the slim optical drive from the kit

b. Detach the bracket as shown to remove it from the slim optical drive.

Figure 55. Removing the bracket from the slim optical drive

4. To install a new slim optical drive into the kit, do the following:

84 P520c User Guide

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 56. 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 57. 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 110.

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 57.

2. Ensure that all the cables are disconnected from the kit. Remove the kit from the front of the computer.

See “Optical drive” on page 69.

Chapter 7.Hardware removal and installation 85

3. Press the clip as shown to open the rear cover of the kit.

Figure 58. 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 59. Removing the conversion bracket from the kit

86 P520c User Guide

5. To remove the 3.5-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 1 on the drive.

Figure 60. Removing the storage drive from the 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 61. Removing pins and installing them into slots

Chapter 7.Hardware removal and installation 87

b. Release tabs 1, 2, and 3 from the corresponding slots.

Figure 62. Releasing tabs from the corresponding slots

c. Unfold the bracket as shown.

Figure 63. Unfolding the bracket

88 P520c User Guide

d. Insert tabs 1, 2, and 3 into the corresponding slots. Ensure that the tabs are secured in place.

Figure 64. Inserting tabs into the corresponding slots

7. Install a 3.5-inch storage drive into the bracket by doing 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 65. Installing the new 3.5-inch storage drive into the bracket

Chapter 7.Hardware removal and installation 89

c. Slide the new 3.5-inch storage drive with bracket into the kit from the rear until the drive snaps into

position.

Figure 66. Installing the new 3.5-inch storage drive with bracket into the kit

8. Pivot the rear cover of the kit inward until you hear a click. Ensure that the rear cover is secured in place.

Figure 67. Pivoting the rear cover inward

9. 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 110.

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 57.

2. Ensure that all the cables are disconnected from the kit. Remove the kit from the front of the computer.

See “Optical drive” on page 69.

90 P520c User Guide

3. Press the clip as shown to open the rear cover of the kit.

Figure 68. 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 69. Removing the 2.5-inch storage drive 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 70. Removing the 2.5-inch storage drive from the bracket

Chapter 7.Hardware removal and installation 91

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 71. Removing pins and installing them into new slots

b. Pivot the bracket as shown to release tabs 1, 2, and 3 from the slots.

Figure 72. Pivoting the bracket

c. Fold the bracket as shown.

Figure 73. Folding the bracket

92 P520c User Guide

d. Insert tabs 1, 2, and 3 into the corresponding slots. Ensure that the tabs are secured in place.

Figure 74. Inserting the tabs into the corresponding slots

7. To install a 2.5-inch storage drive, do the following:

a. Flex 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 75. Installing the new 2.5-inch storage drive into the bracket

Chapter 7.Hardware removal and installation 93

c. Slide the new 2.5-inch storage drive with bracket into the kit from the rear until the drive snaps into

position.

Figure 76. Installing the new 2.5-inch storage drive with bracket into the kit

8. Pivot the rear cover of the kit inward until you hear a click. Ensure that the rear cover is secured in place.

Figure 77. Pivoting the rear cover inward

9. 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 110.

Coin-cell battery

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

this first: Important safety information” on page iii.

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.

94 P520c User Guide

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

disposing of the coin-cell battery.

To remove and install the coin-cell battery, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 57.

2. Locate the coin-cell battery. See “Parts on the system board” on page 6.

3. Remove any PCIe cards that might prevent your access to the coin-cell battery. See “PCIe card” on

page 60.

4. Remove the old coin-cell battery as shown.

Figure 78. Removing the coin-cell battery

5. Install the new coin-cell battery as shown.

Figure 79. Installing the coin-cell battery

6. Reinstall the PCIe cards if you have removed them. See “PCIe card” on page 60.

7. Reinstall the computer cover and reconnect the cables. See “Completing the parts replacement” on

page 110.

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

31.

Cover presence switch

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

this first: Important safety information” on page iii.

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 57.

2. Locate the cover presence switch. See “Computer components” on page 5.

3. To remove the cover presence switch, do the following:

Chapter 7.Hardware removal and installation 95

a. Disconnect the cover presence switch cable from the cover presence switch connector on the

system board. See “Parts on the system board” on page 6.

b. Remove the screw that secures the cover presence switch and remove the cover presence switch

from the chassis.

Figure 80. Removing the cover presence switch

4. To install the cover presence switch, do the following:

a. Align the screw hole in the cover presence switch with the corresponding hole in the chassis. Then

install the screw to secure the cover presence switch to the chassis.

Figure 81. Installing the cover presence switch

b. Connect the cover presence switch cable to the cover presence switch connector on the system

board. See “Parts on the system board” on page 6.

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 110.

Power supply assembly

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

this first: Important safety information” on page iii.

Although there are no moving parts in your computer after the power cord has been disconnected, the

following warnings are required for your safety and proper Underwriters Laboratories (UL) certification.

CAUTION:

96 P520c User Guide

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.

To remove and install the power supply assembly, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 57.

2. To remove the power supply assembly, do the following:

a. Disconnect the power supply assembly cables from the system board and all drives. See “Parts on

the system board” on page 6.

b. Release the power supply assembly cables from the cable clips and ties.

c. Lay the computer on its side and remove the four screws at the rear of the chassis that secure the

power supply assembly. Then slide the power supply assembly to the front of the computer and then

lift it out of the chassis.

Figure 82. Removing the screws for the power supply assembly

3. To install the power supply assembly, do the following:

a. Ensure that the new power supply assembly is the correct replacement.

b. Install the new power supply assembly into the chassis so that the screw holes in the power supply

assembly align with those in the chassis.

c. Install and tighten the four screws to secure the power supply assembly.

Note: Use only screws provided by Lenovo.

d. Connect the power supply assembly cables to the system board and each of the drives.

e. Secure the power supply assembly cables with the cable clips and ties in the chassis.

Chapter 7.Hardware removal and installation 97

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 110.

Heat-sink-and-fan assembly

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

this first: Important safety information” on page iii.

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 57.

2. Lay the computer on its side for easier access to the system board.

3. Locate the heat-sink-and-fan assembly. See “Parts on the system board” on page 6.

4. To remove the heat-sink-and-fan assembly, do the following:

a. Disconnect the heat-sink-and-fan assembly cable from the microprocessor fan connector on the

system board. See “Parts on the system board” on page 6.

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b. Follow the following sequence to remove the four screws that secure the heat-sink-and-fan

assembly to the system board:

• Partially remove screw a, then fully remove screw b, and then fully remove screw a.

• Partially remove screw c, then fully remove screw d, and then fully remove screw c.

Note: Carefully remove the four screws to avoid any possible damage to the system board. The four

screws cannot be removed from the heat-sink-and-fan assembly.

Figure 83. Removing the heat-sink-and-fan assembly

c. Lift the failing heat-sink-and-fan assembly off the system board.

Notes:

• 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.

5. To install the heat-sink-and-fan assembly, do the following:

a. Apply appropriate amount of thermal grease to the new heat-sink-and-fan assembly.

b. Position the heat-sink-and-fan assembly on the system board. Ensure 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.

c. Follow the following sequence to install the four screws to secure the new heat-sink-and-fan

assembly. Do not over-tighten the screws.

• Partially tighten screw a, then fully tighten screw b, and then fully tighten screw a.

• Partially tighten screw c, then fully tighten screw d, and then fully tighten screw c.

Chapter 7.Hardware removal and installation 99

d. 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 6.

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 110.

Primary storage drive

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

this first: Important safety information” on page iii.

To remove or install the primary storage drive, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 57.

2. Locate the primary storage drive. See “Computer components” on page 5.

3. To remove the primary storage drive, do the following:

a. Disconnect the signal cable and the power cable from the storage drive.

b. Pull the handle of the plastic 3.5-inch storage-drive bracket to remove the storage drive from the

storage drive bay.

Figure 84. Removing the primary storage drive

c. Flex the sides of the bracket to remove the storage drive from the bracket.

4. To install the primary storage drive, do the following:

a. Pull the handle of the plastic 3.5-inch storage-drive bracket to remove it from the storage drive bay.

100 P520c User Guide

b. To install a new storage drive into the bracket, flex the bracket and align pin 1, pin 2, pin 3, and pin

4 on the bracket with the corresponding holes in the storage drive. Do not touch the circuit board 5

on the bottom of the storage drive.

Figure 85. Installing the storage drive into the bracket

c. Slide the new storage drive into the storage drive bay until it snaps into position.

Figure 86. Installing the primary storage drive

d. Connect the signal cable and the power cable to the new storage 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 110.

Chapter 7.Hardware removal and installation 101

Secondary storage drive

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

this first: Important safety information” on page iii.

Note: Your computer comes with a secondary storage drive bay for installing or replacing a secondary 3.5-

inch storage drive or a 2.5-inch storage drive.

To remove or install the secondary storage drive, do the following:

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 57.

2. Locate the secondary storage drive. See “Computer components” on page 5.

3. To remove the secondary storage drive, do the following:

a. Disconnect the signal cable and the power cable from the storage drive.

b. Pull the handle of the plastic 3.5-inch storage-drive bracket to remove the storage drive from the

storage drive bay.

Figure 87. Removing the secondary storage drive

c. Flex the sides of the bracket to remove the storage drive from the bracket.

4. To install the secondary storage drive, do the following:

a. Pull the handle of the plastic 3.5-inch storage-drive bracket to remove it from the storage drive bay.

102 P520c User Guide

b. To install a new storage drive into the bracket, flex the bracket and align pin 1, pin 2, pin 3, and pin

4 on the bracket with the corresponding holes in the storage drive. Do not touch the circuit board 5

on the bottom of the storage drive.

Figure 88. Installing the storage drive into the bracket

c. Slide the new storage drive into the storage drive bay until it snaps into position.

Figure 89. Installing the secondary storage drive

d. Connect the signal cable and the power cable to the new storage 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 110.

Chapter 7.Hardware removal and installation 103

2.5-inch storage drive

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

this first: Important safety information” on page iii.

The 2.5-inch storage drive is only available on some models.

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 57.

2. Locate the desired storage drive bay. See “Internal storage drives” on page 8.

3. To remove a 2.5-inch storage drive, do the following:

a. Disconnect the signal cable and power cable from the storage drive.

b. Remove the plastic 3.5-inch storage-drive bracket with the 2.5-inch storage drive from the storage

drive bay. See “Primary storage drive” on page 100 or “Secondary storage drive” on page 102.

c. Flex the sides of the bracket to remove the 2.5-inch to 3.5-inch storage-drive converter from the

bracket.

Figure 90. Removing the 2.5-inch to 3.5-inch storage-drive converter from the 3.5-inch storage-drive bracket

104 P520c User Guide

d. Remove the four screws that secure the 2.5-inch storage drive. Then lift the storage drive out of the

storage-drive converter.

Figure 91. Removing the 2.5-inch storage drive from the storage-drive converter

4. To install a 2.5-inch storage drive, do the following:

a. Remove the plastic 3.5-inch storage-drive bracket from the storage drive bay. See “Primary storage

drive” on page 100 or “Secondary storage drive” on page 102.

b. Flex the sides of the bracket to remove the 2.5-inch to 3.5-inch storage-drive converter from the

bracket.

Chapter 7.Hardware removal and installation 105

c. Install a new 2.5-inch storage drive into the storage-drive converter. Then install the four screws to

secure the new storage drive to the storage-drive converter.

Figure 92. Installing a new 2.5-inch storage drive into the storage-drive converter

106 P520c User Guide

d. To install the storage-drive converter into the 3.5-inch storage-drive bracket, flex the bracket and

align pin 1, pin 2, pin 3, and pin 4 on the bracket with the corresponding holes in the converter.

Figure 93. Installing the storage-drive converter together with the 2.5-inch storage drive into the storage-drive

bracket

e. Install the storage-drive converter with the bracket into the desired storage drive bay. See “Primary

storage drive” on page 100 or “Secondary storage drive” on page 102.

f. Connect the signal cable and the power cable to the storage 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 110.

Front fan assembly

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

this first: Important safety information” on page iii.

Note: The front fan assembly is only available on some models.

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 57.

2. Remove the front bezel. See “Front bezel” on page 59.

3. Locate the front fan assembly. See “Computer components” on page 5.

4. To remove the front fan assembly, do the following:

Chapter 7.Hardware removal and installation 107

a. Disconnect the front-fan assembly cable from the power fan connector on the system board. See

“Parts on the system board” on page 6.

b. The front fan assembly is attached to the chassis by four rubber mounts. Break or cut the rubber

mounts and gently pull the front fan assembly out of the chassis.

Figure 94. Removing the front fan assembly

5. To install the front fan assembly, do the following:

a. Align the new rubber mounts of the new front fan assembly with the corresponding holes in the

chassis. Push the rubber mounts through the holes.

b. Pull the tips of the rubber mounts until the front fan assembly is secured in place.

Figure 95. Installing the front fan assembly

c. Connect the front-fan assembly cable to the front-fan connector on the system board. See “Parts on

the system board” on page 6.

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 110.

Rear fan assembly

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

this first: Important safety information” on page iii.

To remove or install the rear fan assembly, do the following:

108 P520c User Guide

1. Prepare your computer. See “Preparing your computer and removing the computer cover” on page 57.

2. Locate the rear fan assembly. See “Computer components” on page 5.

3. To remove the rear fan assembly, do the following:

a. Disconnect the rear-fan assembly cable from the system fan connector on the system board. See

“Parts on the system board” on page 6.

b. The rear fan assembly is attached to the chassis by four rubber mounts. Break or cut the rubber

mounts and gently pull the rear fan assembly out of the chassis.

Figure 96. Removing the rear fan assembly

4. To install the rear fan assembly, do the following:

a. Align the new rubber mounts of the new rear fan assembly with the corresponding holes in the

chassis. Push the rubber mounts through the holes.

b. Pull the tips of the rubber mounts until the rear fan assembly is secured in place.

Figure 97. Installing the rear fan assembly

c. Connect the rear-fan assembly cable to the rear-fan connector on the system board. See “Parts on

the system board” on page 6.

Chapter 7.Hardware removal and installation 109

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 110.

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 31.

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 5 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. Position the computer cover on the chassis so that the rail guides on the bottom of the computer cover

engage the rails on the chassis. Then, push the cover to the front of the computer until it snaps into

position.

Figure 98. Reinstalling the computer cover

110 P520c User Guide

4. Install the screws to secure the computer cover.

5. Place the computer in an upright position.

6. If there is any locking device available, lock the computer cover. See “Preparing your computer and

removing the computer cover” on page 57.

7. Reconnect the external cables and power cords to the corresponding connectors on the computer. See

“Hardware locations” on page 1.

8. Update the configuration of your computer if necessary. See “Using the Setup Utility program” on page

31.

9. If a newly installed hardware component does not work correctly, update the device driver. See

“Keeping your computer current” on page 26.

Chapter 7.Hardware removal and installation 111

112 P520c User Guide

Chapter 8. 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.

Note: Using the help for Windows 10 requires an active Internet connection.

To access the Windows help system, do the following:

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

2. Click Get Help.

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 “Read this first: Important safety information” on page iii 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

114 P520c User Guide

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 8.Getting information, help, and service 115

116 P520c User Guide

Appendix A. System memory speed

The Intel Xeon® microprocessor families compatible with this ThinkStation computer feature an integrated

memory controller. The memory controller provides the microprocessor with direct access to the system

memory. Therefore, the system memory speed will be determined by the memory module type, frequency,

size (capacity), the number of memory modules installed, and the microprocessor model.

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.

118 P520c User Guide

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:

/usr/share/doc/lenovo-doc

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

Note: For information about configuring RAID in the Linux® environment, contact your Linux software

provider.

120 P520c User Guide

Appendix C. Regulatory 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 30BY, 30BX, and 30C0.

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 conformity

EU contact: Lenovo (Slovakia), Landererova 12, 811 09 Bratislava, Slovakia

EMC Directive Statement: This product is in conformity with the protection requirements of EU Council

EMC Directive 2014/30/EU on the approximation of the laws of the Member States relating to

electromagnetic compatibility.

This product has been tested and found to comply with the limits for Class B equipment according to

European Standards harmonized in the Directives in compliance. The Class B requirements for equipment

are intended to offer adequate protection to broadcast services within residential environments.

Radio Equipment Directive Statement: 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 relating to radio equipment. The full text of the system EU declaration of conformity and

the EU wireless module declarations are available at following Internet addresses: http://www.lenovo.com/eu-

doc-workstations

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.

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

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.

122 P520c User Guide

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

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.

Appendix C. Regulatory information of countries and regions 123

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.

124 P520c User Guide

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 WEEE information

The WEEE marking on Lenovo products applies to countries with WEEE and e-waste regulations (for

example, the European WEEE Directive, India E-Waste Management Rules). Appliances are labeled in

accordance with local regulations concerning waste electrical and electronic equipment (WEEE). These

regulations determine the framework for the return and recycling of used appliances 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.

Users of electrical and electronic equipment (EEE) with the WEEE marking must not dispose of end of life

EEE as unsorted municipal waste, but use the collection framework available to them for the return, recycle,

and recovery of WEEE and to minimize any potential effects of EEE 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.

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.

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.

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

126 P520c User Guide

Battery recycling information for the European Union

Notice: This mark applies only to countries within the European Union (EU).

Batteries or packaging for batteries are labeled in accordance with European Directive 2006/66/EC

concerning batteries and accumulators and waste batteries and accumulators. The Directive determines the

framework for the return and recycling of used batteries and accumulators as applicable throughout the

European Union. This label is applied to various batteries to indicate that the battery is not to be thrown

away, but rather reclaimed upon end of life per this Directive.

In accordance with the European Directive 2006/66/EC, batteries and accumulators are labeled to indicate

that they are to be collected separately and recycled at end of life. 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 batteries and accumulators must not dispose of batteries and accumulators as unsorted municipal

waste, but use the collection framework available to customers for the return, recycling, and treatment of

batteries and accumulators. Customer participation is important to minimize any potential effects of batteries

and accumulators on the environment and human health due to the potential presence of hazardous

substances.

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.

Disposing 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.

Disposing of battery packs from Lenovo products

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

Appendix D. WEEE and recycling information of countries and regions 127

128 P520c User Guide

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 RoHS

This Lenovo product, with included parts (cables, cords, and so on) meets the requirements of Directive

2011/65/EU 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

130 P520c User Guide

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: 30BX0009US and 30BX0008US. 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.

132 P520c User Guide

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.

134 P520c User Guide

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.

136 P520c User Guide

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