Table of Contents
- About this documentation
- Chapter 1. Meet your computer
- Chapter 2. Get started with your computer
- Chapter 3. Explore your computer
- Chapter 4. Secure your computer and information
- Chapter 5. UEFI BIOS
- What is UEFI BIOS
- Enter the BIOS menu
- Navigate in the BIOS interface
- Change the display language of UEFI BIOS
- Change the display mode of UEFI BIOS
- Set the system date and time
- Change the startup sequence
- Enable or disable the configuration change detection feature
- Enable or disable the automatic power-on feature
- Enable or disable the ErP LPS compliance mode
- Change the fan speed level
- CPU locking when PSB is enabled
- Change BIOS settings before installing a new operating system
- Update UEFI BIOS
- UEFI BIOS self-healing recovery
- Recover from a BIOS update failure
- Clear CMOS
- Chapter 6. RAID
- Chapter 7. Troubleshooting, diagnostics, and recovery
- Chapter 8. CRU replacement
- What are CRUs
- Replace a CRU
- ID badge
- Computer cover
- Device in the flex bay
- Storage drive in the front-access storage enclosure
- Device in the multi-drive conversion kit
- Cover presence switch
- Storage drive in a storage drive bay
- Storage drive cage
- M.2 solid-state drive
- Power supply assembly
- PCIe card
- Full-length PCIe card
- Front fan assembly
- Rear fan assembly
- Memory module active cooler and duct
- Memory module
- Coin-cell battery
- Wi-Fi units
- Chapter 9. Help and support
- Appendix A. Important safety information
- Appendix B. System memory speed
- Appendix C. Accessibility and ergonomic information
- Appendix D. Supplemental information about the Ubuntu operating system
- Appendix E. Compliance and TCO Certified information
- Appendix F. Notices and trademarks
Lenovo P620 User Manual
Displayed below is the user manual for P620 by Lenovo which is a product in the PCs/Workstations category. This manual has pages.
Related Manuals
P620
User Guide
Read this first
Before using this documentation and the product it supports, ensure that you read and understand the
following:
• Appendix A “Important safety information” on page 105
• Safety and Warranty Guide
• Setup Guide
First Edition (September 2020)
© Copyright Lenovo 2020.
LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services
Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-
35F-05925.
Contents
About this documentation . . . . . . . . iii
Chapter 1. Meet your computer . . . . . 1
Front . . . . . . . . . . . . . . . . . . . . 1
Rear . . . . . . . . . . . . . . . . . . . . 3
System board . . . . . . . . . . . . . . . . 4
Internal storage drives . . . . . . . . . . . . . 7
Features and specifications . . . . . . . . . . . 9
Statement on USB transfer rate . . . . . . . 10
Chapter 2. Get started with your
computer . . . . . . . . . . . . . . . . 11
Get started with Windows 10 . . . . . . . . . 11
Windows account . . . . . . . . . . . . 11
Windows user interface . . . . . . . . . . 12
Connect to networks . . . . . . . . . . . . . 13
Connect to the wired Ethernet . . . . . . . 13
Connect to Wi-Fi networks (for selected
models) . . . . . . . . . . . . . . . . 13
Use Lenovo Vantage . . . . . . . . . . . . . 13
Use multimedia . . . . . . . . . . . . . . . 14
Use audio . . . . . . . . . . . . . . . 14
Connect to an external display . . . . . . . 14
Chapter 3. Explore your computer . . 17
Manage power . . . . . . . . . . . . . . . 17
Set power button behaviors . . . . . . . . 17
Set the power plan . . . . . . . . . . . . 17
Transfer data . . . . . . . . . . . . . . . . 17
Connect to a Bluetooth-enabled device (for
selected models) . . . . . . . . . . . . 17
Use the optical drive (for selected models) . . 18
Use a media card (for selected models). . . . 18
Purchase accessories . . . . . . . . . . . . 19
Chapter 4. Secure your computer
and information . . . . . . . . . . . . 21
Lock the computer . . . . . . . . . . . . . 21
Use passwords . . . . . . . . . . . . . . . 22
Use software security solutions. . . . . . . . . 23
Use firewalls . . . . . . . . . . . . . . 23
Use computrace Agent software embedded in
firmware (for selected models) . . . . . . . 24
Use BIOS security solutions . . . . . . . . . . 24
Erase all storage drive data . . . . . . . . 24
Use the cover presence switch . . . . . . . 24
Use Smart USB Protection. . . . . . . . . 25
Chapter 5. UEFI BIOS . . . . . . . . . 27
What is UEFI BIOS. . . . . . . . . . . . . . 27
Enter the BIOS menu. . . . . . . . . . . . . 27
Navigate in the BIOS interface . . . . . . . . . 27
Change the display language of UEFI BIOS . . . . 27
Change the display mode of UEFI BIOS . . . . . 28
Set the system date and time . . . . . . . . . 28
Change the startup sequence . . . . . . . . . 28
Enable or disable the configuration change
detection feature . . . . . . . . . . . . . . 29
Enable or disable the automatic power-on
feature . . . . . . . . . . . . . . . . . . 29
Enable or disable the ErP LPS compliance mode . . 29
Change the fan speed level . . . . . . . . . . 30
CPU locking when PSB is enabled . . . . . . . 30
Change BIOS settings before installing a new
operating system . . . . . . . . . . . . . . 30
Update UEFI BIOS. . . . . . . . . . . . . . 30
UEFI BIOS self-healing recovery . . . . . . . . 31
Recover from a BIOS update failure . . . . . . . 31
Clear CMOS . . . . . . . . . . . . . . . . 31
Chapter 6. RAID . . . . . . . . . . . . 33
What is RAID . . . . . . . . . . . . . . . . 33
Select RAID mode . . . . . . . . . . . . . . 33
RAID Levels . . . . . . . . . . . . . . . . 33
Configure RAID with RAIDXpert2 Configuration
Utility . . . . . . . . . . . . . . . . . . . 34
Chapter 7. Troubleshooting,
diagnostics, and recovery . . . . . . . 37
Basic procedure for resolving computer
problems . . . . . . . . . . . . . . . . . 37
Troubleshooting . . . . . . . . . . . . . . 37
Startup problems . . . . . . . . . . . . 37
Audio problems . . . . . . . . . . . . . 38
Network problems . . . . . . . . . . . . 38
Performance problems . . . . . . . . . . 41
Storage drive problems . . . . . . . . . . 42
CD or DVD problems . . . . . . . . . . . 42
Serial connector problems . . . . . . . . . 43
USB device problems . . . . . . . . . . 43
Software problems. . . . . . . . . . . . 44
Diagnostics . . . . . . . . . . . . . . . . 44
Lenovo diagnostic tools . . . . . . . . . . 44
ThinkStation Diagnostics . . . . . . . . . 44
Lenovo PC Diagnostics . . . . . . . . . . 45
Lenovo Vantage . . . . . . . . . . . . . 45
© Copyright Lenovo 2020 i
Recovery . . . . . . . . . . . . . . . . . 45
Restore system files and settings to an earlier
point . . . . . . . . . . . . . . . . . 45
Restore your files from a backup . . . . . . 45
Reset your computer . . . . . . . . . . . 46
Use advanced options . . . . . . . . . . 46
Windows automatic recovery. . . . . . . . 46
Create and use a recovery USB device . . . . 46
Update the device driver . . . . . . . . . 47
Chapter 8. CRU replacement . . . . . 49
What are CRUs . . . . . . . . . . . . . . . 49
Replace a CRU . . . . . . . . . . . . . . . 50
ID badge. . . . . . . . . . . . . . . . 50
Computer cover . . . . . . . . . . . . . 52
Device in the flex bay . . . . . . . . . . . 56
Storage drive in the front-access storage
enclosure . . . . . . . . . . . . . . . 59
Device in the multi-drive conversion kit . . . . 62
Cover presence switch . . . . . . . . . . 67
Storage drive in a storage drive bay . . . . . 68
Storage drive cage . . . . . . . . . . . . 71
M.2 solid-state drive . . . . . . . . . . . 74
Power supply assembly . . . . . . . . . . 80
PCIe card . . . . . . . . . . . . . . . 81
Full-length PCIe card . . . . . . . . . . . 85
Front fan assembly. . . . . . . . . . . . 87
Rear fan assembly . . . . . . . . . . . . 89
Memory module active cooler and duct. . . . 90
Memory module . . . . . . . . . . . . . 91
Coin-cell battery. . . . . . . . . . . . . 93
Wi-Fi units . . . . . . . . . . . . . . . 95
Chapter 9. Help and support . . . . . 101
Self-help resources . . . . . . . . . . . . . 101
Call Lenovo . . . . . . . . . . . . . . . . 102
Before you contact Lenovo . . . . . . . . 102
Lenovo Customer Support Center . . . . . . 103
Purchase additional services. . . . . . . . . . 103
Appendix A. Important safety
information . . . . . . . . . . . . . . . 105
Appendix B. System memory
speed. . . . . . . . . . . . . . . . . . 119
Appendix C. Accessibility and
ergonomic information . . . . . . . . 121
Appendix D. Supplemental
information about the Ubuntu operating
system . . . . . . . . . . . . . . . . . 125
Appendix E. Compliance and TCO
Certified information . . . . . . . . . . 127
Appendix F. Notices and
trademarks . . . . . . . . . . . . . . . 137
ii P620 User Guide
About this documentation
• Illustrations in this documentation might look different from your product.
• Depending on the model, some optional accessories, features, and software programs might not be
available on your computer.
• Depending on the version of operating systems and programs, some user interface instructions might not
be applicable to your computer.
• Documentation content is subject to change without notice. Lenovo makes constant improvements on the
documentation of your computer, including this User Guide. To get the latest documentation, go to:
https://pcsupport.lenovo.com
• Microsoft® makes periodic feature changes to the Windows® operating system through Windows Update.
As a result, some information in this documentation might become outdated. Refer to Microsoft resources
for the latest information.
© Copyright Lenovo 2020 iii
iv P620 User Guide
Chapter 1. Meet your computer
Front
1. Optical drive eject button* Eject the optical drive tray.
2. Optical drive activity indicator* This indicator is on when the optical drive is in use.
3. Power button
Press to turn on the computer.
To turn off the computer, open the Start menu, click Power, and then select
Shut down.
The indicator in the power button shows the system status of your computer.
• Blinking for three times: The computer is initially connected to power.
• On: The computer is on.
• Off: The computer is off or in hibernation mode.
• Blinking rapidly: The computer is entering sleep or hibernation mode.
• Blinking slowly: The computer is in sleep mode.
4. Power indicator This indicator is on when the computer is turned on.
5. Storage drive activity indicator This indicator is on when the storage drive is in use.
6. Photoelectric sensor*
This sensor receives the flash light sent by the Lenovo PC Diagnostics application
installed in the smartphone. Then, the photoelectric sensor triggers the computer
to send the tune of the detected error to the smartphone for users to decode the
error.
© Copyright Lenovo 2020 1
7. Headset connector Connect a headset or headphones to your computer.
8. Four-digit diagnostic display Display a four-digit error code when an issue or error is detected. You can check
the error code at https://thinkworkstationsoftware.com/diags.
9. USB 3.2 connector Gen 2 (with
charging function)
• Charge USB- compatible devices with the output voltage and current of 5 V
and 2.1 A.
• Enable you to experience higher data transfer rate when you connect USB-
compatible devices, such as a USB keyboard, USB mouse, USB storage
device, or USB printer.
10. USB 3.2 connector Gen 2
Enable you to experience higher data transfer rate when you connect USB-
compatible devices, such as a USB keyboard, USB mouse, USB storage device,
or USB printer.
11. USB-C® (3.2 Gen 2)
connector
• Charge USB-C compatible devices with the output voltage and current of 5 V
and 3 A.
• Transfer data at USB 3.2 speed, up to 10 Gbps.
* for selected models
2P620 User Guide
Rear
1. Microphone connector Connect a microphone to your computer when you want to record sound or
interact with the computer using speech recognition software.
2. Audio line-out connector
Send audio signals from the computer to external devices, such as powered
stereo speakers, headphones, or multimedia keyboards. To connect a stereo
system or other external recording device, connect a cable between the audio
line-in connector of the device and the audio line-out connector of the computer.
Note: If your computer has both an audio line-out connector and a headset or
headphone connector, always use the headset or headphone connector for
earphones, headphones, or a headset. The headphone connector does not
support headset microphones.
3. Audio line-in connector
Receive audio signals from an external audio device, such as a stereo system. To
connect an external audio device, connect a cable between the audio line-out
connector of the device and the audio line-in connector of the computer.
4. Serial connector* Connect an external modem, a serial printer, or other devices that use a serial
connector.
5. PS/2 keyboard connector* Connect a keyboard that uses a Personal System/2 (PS/2) keyboard connector.
6. PS/2 mouse connector* Connect a mouse, a trackball, or other pointing devices that use a PS/2 mouse
connector.
7. USB 2.0 connectors Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB
storage device, or USB printer.
8. USB 3.2 connectors Gen 2
Enable you to experience higher data transfer rate when you connect USB-
compatible devices, such as a USB keyboard, USB mouse, USB storage device,
or USB printer.
Chapter 1.Meet your computer 3
9. Ethernet connector
Connect to a local area network (LAN). When the green indicator is on, the
computer is connected to a LAN. When the yellow indicator blinks, data is being
transmitted.
10. PCI-Express card area
Install PCI-Express cards into this area to improve the operating performance of
the computer. Depending on the computer model, the connectors in this area
vary.
11. Power cord connector Connect the power cord to your computer for power supply.
12. Key-nest slots Install the key holder that comes with the computer-cover-lock key to the key-nest
slots.
13. Security-lock slot Lock your computer to a desk, table, or other fixtures through a Kensington-style
cable lock.
* for selected models
System board
Note: The system board might look slightly different from the illustration.
4P620 User Guide
Figure 1. System board part locations
1 Cover presence switch connector (intrusion switch
connector)
2 Memory fan connector 1
3 Optical-drive fan connector 2 4 4-pin power connector (for optical drive)
5 Memory slot 1 6 Memory slot 2
7 Memory slot 3 8 Memory slot 4
9 Optical-drive fan connector 10 Thermal-sensor connector
11 Microprocessor fan connector 1 12 Microprocessor
13 Microprocessor fan connector 2 14 Front input/output connector
15 Memory slot 5 16 Memory slot 6
17 Memory slot 7 18 Memory slot 8
19 M.2 solid-state drive slot 1 20 M.2 solid-state drive slot 2
21 Coin-cell battery 22 4-pin power connector (for storage drive)
Chapter 1.Meet your computer 5
23 8-pin power connector (for graphics card) 24 8-pin power connector (for graphics card)
25 Front-fan-assembly connector 26 eSATA / SATA 6 connector
27 SATA 4 connector 28 SATA 2 connector
29 SATA 1 connector 30 SATA 3 connector
31 SATA 5 connector 32 Media card reader (MCR) header
33 Internal USB 3.2 Gen 2 connector 34 Alternative Trusted Platform Module (TPM) header
35 Thunderbolt™ control connector 36 Power supply connector
37 Internal-storage-drive activity indicator connector 38 Internal USB 2.0 connector
39 PCIe 4.0 x8 card slot 6 40 PCIe 4.0 x16 card slot 5
41 PCIe 4.0 x16 card slot 4 42 PCIe 4.0 x16 card slot 3
43 Clear CMOS / Recovery jumper 44 PCIe 4.0 x8 card slot 2
45 PCIe 4.0 x 16 card slot 1 46 Memory fan connector 2
47 Serial port (COM) connector
6P620 User Guide
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.
1. M.2 solid-state drive slots One or two M.2 solid-state drives are installed in selected models.
2. Flex bay
Depending on your computer model, the following devices might be installed in
the flex bay:
• Flex module
Depending on your computer model, the following parts might be installed in
the flex module:
– 15-in-1 card reader
– Slim optical drive
• Front-access storage enclosure
• Multi-drive conversion kit
Depending on your computer model, the following parts might be installed in
the multi-drive conversion kit:
– Internal storage drive
– Slim optical drive
• Slim-optical-drive adapter
Chapter 1.Meet your computer 7
3. Storage drive bays*
You can install hard disk drives in the storage drive bays.
Note: If you want to install storage drives into the optional-storage-drive bays,
contact the Lenovo Customer Support Center for help.
4. Storage drive bays You can install hard disk drives in the storage drive bays.
5. PCIe slots You can install compatible PCIe cards and PCIe solid-state drives in the PCIe card
slots.
* for selected models
8P620 User Guide
Features and specifications
Dimensions
• Width: 165 mm (6.5 inches)
• Height: 446 mm (17.6 inches)
• Depth: 455 mm (17.9 inches)
Weight (without the packaging) Maximum configuration as shipped: 24 kg (52.91 lb)
Hardware configuration
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.
Power supply 1000-watt automatic voltage-sensing power supply
Electrical input • Input voltage: From 100 V ac to 240 V ac
• Input frequency: 50/60 Hz
Microprocessor To view the microprocessor information of your computer, right-click the Start
button and then click System.
Memory Up to eight double data rate 4 (DDR4) error correction code (ECC) registered dual
inline memory modules (RDIMMs)
Storage device
• Hard disk drive
• M.2 solid-state drive*
• Slim optical drive*
• 15-in-1 media card*
To view the storage drive capacity of your computer, right-click the Start button
to open the Start context menu and then click Disk Management.
Note: The storage drive capacity indicated by the system is less than the nominal
capacity.
Video features
• PCIe x16 card slots on the system board for a discrete graphics card
• Video connectors on a discrete graphics card:
– DVI connector
– DisplayPort connector
– Mini DisplayPort connector
Audio features
The integrated audio card supports the following:
• Audio line-in connector
• Audio line-out connector
• Headset connector
• Internal speaker
• Microphone connector
Chapter 1.Meet your computer 9
Expansion
• Flex bay
• Storage drive bays
• M.2 solid-state drive slots
• Memory slots
• PCI Express slots
Network features
• Bluetooth*
• Ethernet LAN
• Wireless LAN*
* for selected models
Statement on USB transfer rate
Depending on many factors such as the processing capability of the host and peripheral devices, file
attributes, and other factors related to system configuration and operating environments, the actual transfer
rate using the various USB connectors on this device will vary and will be slower than the data rate listed
below for each corresponding device.
USB device Data rate (Gbit/s)
3.2 Gen 1 / 3.1 Gen 1 5
3.2 Gen 2 / 3.1 Gen 2 10
3.2 Gen 2 × 2 20
10 P620 User Guide
Chapter 2. Get started with your computer
Get started with Windows 10
Learn the basics of Windows 10 and start working with it right away. For more information about Windows
10, see the Windows help information.
Windows account
A user account is required to use the Windows operating system. It can either be a Windows user account or
a Microsoft account.
Windows user account
When you start Windows for the first time, you are prompted to create a Windows user account. This first
account you created is of the “Administrator” type. With an Administrator account, you can create additional
user accounts or change account types by doing the following:
1. Open the Start menu and select Settings ➙ Accounts ➙ Family & other users.
2. Follow the on-screen instructions.
Microsoft account
You can also log in to the Windows operating system with a Microsoft account.
To create a Microsoft account, go to the Microsoft sign-up page at https://signup.live.com and follow the on-
screen instructions.
With a Microsoft account, you can:
• Enjoy one-time signing in if you are using other Microsoft services, such as OneDrive, Skype, and Outlook.
com.
• Sync personalized settings across other Windows-based devices.
© Copyright Lenovo 2020 11
Windows user interface
1. Account Change account settings, lock the computer, or sign out from the current account.
2. Documents Open the Documents folder, a default folder to save your received files.
3. Pictures Open the Pictures folder, a default folder to save your received pictures.
4. Settings Launch Settings.
5. Power Shut down, restart, or put the computer into sleep mode.
6. Start button Open the Start menu.
7. Windows Search Type what you are looking for in the search box and get search results from your
computer and the Web.
8. Task View Display all opened apps and switch among them.
9. Windows notification area Display notifications and status of some features.
10. Battery status icon Display power status and change battery or power settings. When your computer
is not connected to ac power, the icon changes to .
11. Network icon Connect to an available wireless network and display the network status. When
connected to a wired network, the icon changes to .
12. Action center Display the latest notifications from apps and provide quick access to some
features.
Open the Start menu
• Click the Start button.
• Press the Windows logo key on the keyboard.
Open the Start context menu
Right-click the Start button.
12 P620 User Guide
Access Control Panel
• Open the Start menu and click Windows System ➙ Control Panel.
• Use Windows Search.
Launch an app
• Open the Start menu and select the app you want to launch.
• Use Windows Search.
Connect to networks
Your computer helps you connect to the world through a wired or wireless network.
Connect to the wired Ethernet
Connect your computer to a local network through the Ethernet connector on your computer with an
Ethernet cable.
Connect to Wi-Fi networks (for selected models)
If your computer includes a wireless LAN module, you can connect your computer to Wi-Fi® networks. The
wireless LAN module on your computer may support different standards. For some countries or regions, use
of 802.11ax may be disabled according to local regulations.
1. Click the network icon in the Windows notification area. A list of available wireless networks is displayed.
2. Select a network available for connection. Provide required information, if needed.
Use Lenovo Vantage
The preinstalled Lenovo Vantage is a customized one-stop solution to help you maintain your computer with
automated updates and fixes, configure hardware settings, and get personalized support.
Access Lenovo Vantage
Open the Start menu and click Lenovo Vantage. You also can type Lenovo Vantage in the search box.
To download the latest version of Lenovo Vantage, go to Microsoft Store and search by the app name.
Key features
Lenovo Vantage enables you to:
• Know the device status easily and customize device settings.
• Download and install UEFI BIOS, firmware and driver updates to keep your computer up-to-date.
• Monitor your computer health, and secure your computer against outside threats.
• Scan your computer hardware and diagnose hardware problems.
• Look up warranty status (online).
• Access User Guide and helpful articles.
Notes:
Chapter 2.Get started with your computer 13
• 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.
Use multimedia
Use your computer for business or entertainment with the devices (such as a camera, a monitor, or
speakers).
Use audio
To enhance the audio experience, connect speakers, headphones, or a headset to the audio connector.
Adjust the volume
1. Click the volume icon in the Windows notification area on the taskbar.
2. Follow the on-screen instructions to adjust the volume. Click the speaker icon to mute the audio.
Change the sound settings
1. Go to Control Panel and view by category.
2. Click Hardware and Sound ➙ Sound.
3. Change the settings as you prefer.
Connect to an external display
Connect to a wired display
Connect your computer to a projector or a monitor through the video connectors on a discrete graphics card
installed in your computer to give presentations or expand your workspace.
If your computer cannot detect the external display, right-click an empty area of the desktop, and then click
Display settings ➙ Detect.
Connect to a wireless display
To use a wireless display, ensure that both your computer and the external display support the Miracast®
feature.
• Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices ➙ Add
Bluetooth or other device. In the Add a device window, click Wireless display or dock. Then, follow the
instructions on the screen.
• Click the action center icon in the Windows notification area and click Connect. Select the wireless
display and follow the on-screen instructions.
Set the display mode
Right-click a blank area on the desktop and select Display settings. Then, select a display mode of your
preference from the Multiple displays menu.
• Duplicate these displays: Display the same video output on both your computer screen and an external
display.
• Extend these displays: Extend the video output from your computer display to an external display. You
can drag and move items between the two displays.
• Show only on 1: Display the video output only on your computer screen.
14 P620 User Guide
• Show only on 2: Display the video output only on an external display.
If you show programs using DirectDraw or Direct3D® in full-screen mode, only the main display shows the
video output.
Change display settings
1. Right-click a blank area on the desktop and select Display settings.
2. Select the display that you want to configure.
3. Change display settings of your preference.
You can change the settings for both the computer display and the external display. For example, you can
define which one is the main display and which one is the secondary display. You also can change the
resolution and orientation.
Note: If you set a higher resolution for the computer display than the external display, only part of the screen
can be displayed on the external display.
Chapter 2.Get started with your computer 15
16 P620 User Guide
Chapter 3. Explore your computer
Manage power
Use the information in this section to achieve the best balance between performance and power efficiency.
Set power button behaviors
You can define what the power button does according to your preference. For example, by pressing the
power button, you can turn off the computer or put the computer to sleep or hibernation mode.
To change what the power button does:
1. Go to Control Panel and view by large icons or small icons.
2. Click Power Options ➙ Choose what the power buttons do.
3. Change the settings as you prefer.
Set the power plan
For ENERGY STAR® compliant computers, the following power plan takes effect when your computers have
been idle for a specified duration:
Table 1. Default power plan (when plugged into ac power)
• Turn off the display: After 10 minutes
• Put the computer to sleep: After 25 minutes
To awaken the computer from Sleep mode, press any key on your keyboard.
To reset the power plan to achieve the best balance between performance and power saving:
1. Go to Control Panel and view by large icons or small icons.
2. Click Power Options, and then choose or customize a power plan of your preference.
Transfer data
Quickly share your files using the built-in Bluetooth technology among devices with the same features. You
also can install a disc or media card to transfer data.
Connect to a Bluetooth-enabled device (for selected models)
You can connect all types of Bluetooth-enabled devices to your computer, such as a keyboard, a mouse, a
smartphone, or speakers. To ensure that the connection is successful, place the devices 10 meters (33 feet),
at most, from the computer.
1. Turn on Bluetooth on the computer.
a. Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices.
b. Turn on the Bluetooth switch.
2. Click Add Bluetooth or other device ➙ Bluetooth.
3. Select a Bluetooth device, and then follow the on-screen instructions.
© Copyright Lenovo 2020 17
Your Bluetooth device and computer will automatically connect the next time if the two devices are in range
of each other with Bluetooth turned on. You can use Bluetooth for data transfer or remote control and
communication.
Use the optical drive (for selected models)
If your computer has an optical drive, read the following information.
Know the type of your optical drive
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.
Install or remove a disc
1. With the computer on, press the eject/close button on the optical drive. The tray slides out of the drive.
2. Insert a disc into the tray or remove a disc from the tray, and then press the eject/close button again to
close the tray.
Note: If the tray does not slide out of the drive when you press the eject/close button, turn off the 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.
Record a disc
1. Insert a recordable disc into the optical drive that supports recording.
2. Do one of the following:
• Open the Start menu, and then click Settings ➙ Devices ➙ AutoPlay. Select or turn on Use
AutoPlay for all media and devices.
• Open Windows Media Player.
• Double-click the ISO file.
3. Follow the on-screen instructions.
Use a media card (for selected models)
If your computer has a SD-card slot, read the following information.
Install a media card
1. Locate the SD-card slot.
2. Ensure that the metal contacts on the card are facing the ones in the SD-card slot. Insert the card firmly
into the SD-card slot until it is secured in place.
Remove a media card
Attention: Before removing a media card, eject the card from the Windows operating system first.
Otherwise, data on the card might get corrupted or lost.
1. Click the triangular icon in the Windows notification area to show hidden icons. Then, right-click the
Safely Remove Hardware and Eject Media icon.
2. Select the corresponding item to eject the card from the Windows operating system.
3. Press the card and remove it from your computer. Store the card safely for future use.
18 P620 User Guide
Purchase accessories
Lenovo has a number of hardware accessories and upgrades to help expand the capabilities of your
computer. Options include memory modules, storage devices, network cards, power adapters, keyboards,
mice, and more.
To shop at Lenovo, go to https://www.lenovo.com/accessories.
Chapter 3.Explore your computer 19
20 P620 User Guide
Chapter 4. Secure your computer and information
Lock the computer
Note: You are responsible for evaluating, selecting, and implementing the locking device and security
feature. Lenovo makes no comments, judgments, or warranties about the function, quality, or performance
of the locking device and security feature. You can purchase computer locks from Lenovo.
Key lock
Locking the computer cover through a key lock prevents unauthorized access to the inside of your computer.
The keys for the key lock are attached to the rear of the machine. For security, store the keys in a secure
place when you are not using them.
Kensington-style cable lock
Lock your computer to a desk, table, or other fixtures through a Kensington-style cable lock.
© Copyright Lenovo 2020 21
Use passwords
Password types
You can set the following passwords in UEFI (Unified Extensible Firmware Interface) BIOS (Basic Input/
Output System) to prevent unauthorized access to your computer. However, you are not prompted to enter
any UEFI BIOS password when your computer resumes from sleep mode.
• 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.
• Supervisor password
Setting a supervisor 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 a
supervisor password.
When a supervisor password is set, you are prompted to enter a valid password each time you try to enter
the BIOS menu.
If both the power-on password and supervisor password are set, you can enter either password.
However, you must use your supervisor password to change any configuration settings.
• Hard disk password
22 P620 User Guide
Setting a hard disk password prevents unauthorized access to the data on the storage 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.
Note: After you set a hard disk password, your data on the storage drive is protected even if the storage
drive is removed from one computer and installed in another.
• System management password (for selected models)
You can enable the system management password to have the same authority as the supervisor
password to control security related features. To customize the authority of the system management
password through the UEFI BIOS menu:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Security ➙ System Management Password Access Control.
3. Follow the on-screen instructions.
If you have set both the supervisor password and the system management password, the supervisor
password overrides the system management password.
Set, change, and remove a password
Before you start, print these instructions.
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Security.
3. Depending on the password type, select Set Supervisor Password, Set Power-On Password, Set
System Management Password, or Hard Disk Password and press Enter.
4. Follow the on-screen instructions to set, change, or remove a password.
5. Press F10 or Fn+F10 to save the changes and exit.
You should record your passwords and store them in a safe place. If you forget the passwords, see “Clear
CMOS” on page 31 to remove them by yourself. You can also contact a Lenovo-authorized service provider
to have the passwords removed.
Notes:
• If the supervisor password is forgotten, it might not be removed by clearing CMOS depending on your
BIOS settings.
• If the hard disk password is forgotten, Lenovo cannot remove the password or recover data from the
storage drive.
Use software security solutions
This section provides software solutions to secure your computer and information.
Use 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 the
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 firewalls:
1. Go to Control Panel and view by large icons or small icons.
Chapter 4.Secure your computer and information 23
2. Click Windows Defender Firewall, and then follow the on-screen instructions.
Use 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.
Use BIOS security solutions
This section provides BIOS solutions to secure your computer and information.
Erase all storage drive data
It is recommended that you erase all storage drive data before recycling a storage drive or the computer.
To erase all storage drive data:
1. Set a hard disk password for the storage drive you will recycle. See “Use passwords” on page 22.
2. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
3. Select Security ➙ Hard Disk Password ➙ Security Erase HDD Data and press Enter.
4. Select the storage drive you will recycle and press Enter.
5. A message is displayed, prompting you to confirm the operation. Select Yes and press Enter. The
erasing process begins.
Note: During the erasing process, the power button and the keyboard are disabled.
6. After the erasing process is completed, a message is displayed, prompting you to reset the system.
Select Continue.
Note: Depending on the storage drive capacity, the erasing process will take half an hour to three hours.
7. After the resetting process is completed, one of the following will happen:
• If the data on the system storage drive is erased, you will be prompted that no operating system is
available.
• If the data on the non-system storage drive is erased, the computer restarts automatically.
Use the cover presence switch
The cover presence switch prevents the computer from logging in to the operating system when the
computer cover is not properly installed or closed.
To enable the cover presence switch connector on the system board:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Security ➙ Cover Tamper Detected and press Enter.
3. Select Enabled and press Enter.
4. Press F10 or Fn+F10 to save the changes and exit.
When the cover presence switch connector on the system board is enabled, if the cover presence switch
detects that the computer cover is not correctly installed or closed, an error message will be displayed when
you turn on the computer. To bypass the error message and log in to the operating system:
1. Properly install or close the computer cover.
24 P620 User Guide
2. Enter the BIOS menu, save and then exit.
Use Smart USB Protection
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:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Security ➙ Smart USB Protection and press Enter.
3. Select the desired setting and press Enter.
4. Press F10 or Fn+F10 to save the changes and exit.
Chapter 4.Secure your computer and information 25
26 P620 User Guide
Chapter 5. UEFI BIOS
This chapter provides information about configuring and updating UEFI BIOS, and clearing CMOS.
What is UEFI BIOS
Note: The operating system settings might override any similar settings in UEFI BIOS.
UEFI BIOS is the first program that the computer runs when the computer is turned on. UEFI BIOS initializes
the hardware components and loads the operating system and other programs. Your computer comes with a
setup program with which you can change UEFI BIOS settings.
Enter the BIOS menu
Restart the computer. When the logo screen is displayed, press F1 or Fn+F1 to enter the BIOS menu.
Note: If you have set BIOS passwords, enter the correct passwords when prompted. You also can select No
or press Esc to skip the password prompt and enter the BIOS menu. However, you cannot change the
system configurations that are protected by passwords.
Navigate in the BIOS interface
Attention: The default configurations are already optimized for you in boldface. Improper change of the
configurations might cause unexpected results.
Depending on your keyboard, you can navigate in the BIOS interface by pressing the following keys, or
combinations of Fn and the following keys:
F1 or Fn+F1 Display the General Help screen.
Esc or Fn+Esc Exit the submenu and return to the parent menu.
↑↓ or Fn+↑↓ Locate an item.
← → or Fn+← → Select a tab.
+/– or Fn++/– Change to a higher or lower value.
Enter Enter the selected tab or submenu.
F9 or Fn+F9 Restore to the default settings.
F10 or Fn+F10 Save your configuration and exit.
Change the display language of UEFI BIOS
UEFI BIOS supports three or four display languages: English, French, simplified Chinese, and Russian (for
selected models).
To change the display language of UEFI BIOS:
1. Select Main ➙ Language and press Enter.
2. Set the display language as desired.
© Copyright Lenovo 2020 27
Change the display mode of UEFI BIOS
You can use UEFI BIOS in the graphic mode or the text mode according to your needs.
To change the display mode of UEFI BIOS:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Main ➙ Setup Mode Select and press Enter.
3. Set the display mode as desired.
Set the system date and time
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Main ➙ System Time & Date and press Enter.
3. Set the system date and time as desired.
4. Press F10 or Fn+F10 to save the changes and exit.
Change the startup sequence
If the computer does not start up from a device as expected, you can change the startup device sequence
permanently or select a temporary startup device.
Change the startup device sequence permanently
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 the computer is on or turn on the computer. 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. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
3. Select Startup, and then follow the on-screen instructions to change the startup sequence.
4. Press F10 or Fn+F10 to save the changes and exit.
Select a temporary startup device
Note: Not all discs and storage drives are bootable.
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 the computer is on or turn on the computer. 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. Restart the computer. When the logo screen is displayed, press F12 or Fn+F12.
3. Select the storage device as desired and press Enter.
If you want to change the startup device sequence permanently, select Enter Setup on Startup Device Menu
and press Enter to enter the BIOS menu.
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Enable or disable the configuration change detection feature
If you enable configuration change detection, when the POST detects configuration changes of some
hardware devices (such as storage drives or memory modules), an error message will be displayed when you
turn on the computer.
To enable or disable the configuration change detection feature:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Security ➙ Configuration Change Detection and press Enter.
3. Enable or disable the feature as desired.
4. Press F10 or Fn+F10 to save the changes and exit.
To bypass the error message and log in to the operating system, press F2 or Fn+F2. To clear the error
message, enter the BIOS menu, save and then exit.
Enable or disable the automatic power-on feature
The Automatic Power On item in UEFI BIOS provides various options for you to make your computer start up
automatically.
To enable or disable the automatic power-on feature:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Power ➙ Automatic Power On and press Enter.
3. Select the feature as desired and press Enter.
4. Enable or disable the feature as desired.
5. Press F10 or Fn+F10 to save the changes and exit.
Enable or disable 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/us/en/compliance/eco-declaration
You can enable the ErP LPS compliance mode to reduce the consumption of electricity when the computer
is off or in sleep mode. When the ErP LPS compliance mode is enabled, you can wake up the computer by
pressing the power button.
To enable or disable the ErP LPS compliance mode:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Power ➙ Enhanced Power Saving Mode and press Enter.
3. Depending on whether you select Enabled or Disabled, do one of the following:
• If you select Enabled, press Enter. Then, select Power ➙ Automatic Power On and press Enter.
Check whether the Wake on LAN feature is disabled automatically. If no, disable it.
• If you select Disabled, press Enter. Then, go to the next step.
4. Press F10 or Fn+F10 to save the changes and exit.
To meet the off mode requirement of ErP compliance, you need to disable the Fast Startup function.
1. Go to Control Panel and view by large icons or small icons.
Chapter 5.UEFI BIOS 29
2. Click Power Options ➙ Choose what the power buttons do ➙ Change settings that are currently
unavailable.
3. Clear the Turn on fast startup (recommended) option from the Shutdown settings list.
Change the fan speed level
You can change the fan speed level, from level 1 to level 7, to adjust the thermal performance of your
computer. A higher fan speed level indicates better thermal performance with more noise.
To change the fan speed level:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Power ➙ Fan Control Stepping and press Enter.
3. Set the fan speed level as desired.
4. Press F10 or Fn+F10 to save the changes and exit.
CPU locking when PSB is enabled
Platform Secure Boot is an AMD technology to enhance platform security. With this feature enabled in the
UEFI BIOS, after you replace the failing CPU with a new one and start the system, you will be prompted that
the new CPU will be locked and only work with the current computer model. You can select the option of
your preference.
Change BIOS settings before installing a new operating system
BIOS settings vary by operating system. Change the BIOS settings before installing a new operating system.
Microsoft constantly makes updates to the Windows 10 operating system. Before installing a particular
Windows 10 version, check the compatibility list for the Windows version. For details, go to:
https://support.lenovo.com/us/en/solutions/windows-support
To change the BIOS settings:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. From the main interface, select Security ➙ Secure Boot and press Enter.
3. Depending on the operating system to be installed, do one of the following:
• To install the Windows 10 (64-bit) and most of Linux operating system, select Enabled for Secure
Boot.
• To install an operating system that does not support secure boot, select Disabled for Secure Boot.
4. Press F10 or Fn+F10 to save the changes and exit.
Update UEFI BIOS
When you install a new program, device driver, or hardware component, you might need to update UEFI
BIOS. You can update the BIOS from your operating system or a flash update disc (supported only on
selected models).
Download and install the latest UEFI BIOS update package by one of the following methods:
• From Lenovo Vantage:
Open Lenovo Vantage to check the available update packages. If the latest UEFI BIOS update package is
available, follow the on-screen instructions to download and install the package.
30 P620 User Guide
• From the Lenovo Support Web site:
1. Go to https://pcsupport.lenovo.com.
2. Download the flash BIOS update driver for the operating system version or the ISO image version
(used to create a flash update disc). Then, download the installation instructions for the flash BIOS
update driver you have downloaded.
3. Print the installation instructions and follow the instructions to update the BIOS.
UEFI BIOS self-healing recovery
When you update the UEFI BIOS, you might encounter a power failure or other critical operations that cause
the boot to crash. In this case, the UEFI BIOS self-healing recovery function is launched automatically to help
UEFI BIOS recover to boot, and help you save settings as much as possible. User input will be blocked and
no user operation is needed during the self-healing recovery process. Do not turn off your computer. System
will enter setup and display the progress when the primary image is recovered.
During the self-healing recovery process, the four-digit diagnostic display will indicate that self-healing
recovery is in progress and show the percentage of the progress alternatively. The whole process might take
you about 15 minutes.
If the self-healing recovery fails, the system will hang. You can contact a Lenovo-authorized service provider
to have the computer serviced.
Recover from a BIOS update failure
1. Remove all media from the drives and turn off all connected devices.
2. Insert the BIOS update disc into the optical drive, and then turn off the computer.
3. Disconnect all power cords from electrical outlets. Then, remove any parts that impede access to the
Clear CMOS /Recovery jumper.
4. Move the jumper from the standard position to the maintenance position.
5. Reconnect the power cords for the computer and the monitor to electrical outlets.
6. Turn on the computer and the monitor. When the computer beeps, the recovery process begins.
7. After the recovery process is completed, the computer will be turned off automatically.
Note: Depending on the computer model, the recovery process will take two to three minutes.
8. Disconnect all power cords from electrical outlets.
9. Move the jumper back to the standard position.
10. Reinstall all the parts that have been removed. Then, reconnect the power cords for the computer and
the monitor to electrical outlets.
11. Turn on the computer and the monitor. When the logo screen is displayed, press F1 or Fn+F1.
12. To prevent data loss, ensure that BIOS settings are restored to an earlier point. For BIOS configurations,
see Chapter 5 “UEFI BIOS” on page 27.
Clear CMOS
1. Remove all media from the drives and turn off all connected devices and the computer.
2. Disconnect all power cords from electrical outlets. Then, remove any parts that impede access to the
Clear CMOS /Recovery jumper.
3. Move the jumper from the standard position to the maintenance position.
4. Reconnect the power cords for the computer and the monitor to electrical outlets.
Chapter 5.UEFI BIOS 31
5. Turn on the computer and the monitor. When the computer beeps, wait for approximately 10 seconds.
6. Turn off the computer by holding the power button for approximately four seconds.
7. Disconnect all power cords from electrical outlets.
8. Move the jumper back to the standard position.
9. Reinstall all the parts that have been removed. Then, reconnect the power cords for the computer and
the monitor to electrical outlets.
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. For BIOS configurations,
see Chapter 5 “UEFI BIOS” on page 27.
32 P620 User Guide
Chapter 6. RAID
What is RAID
Redundant Array of Independent Disks (RAID) is a technology that provides increased storage functions and
reliability through redundancy. It also can 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.
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.
Select RAID mode
You can select the SATA RAID mode or NVMe RAID mode to configure RAID with RAIDXpert2 Configuration
Utility.
1. Do one of the following to select the SATA RAID mode or NVMe RAID mode:
• SATA RAID mode:
a. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
b. Select Devices ➙ ATA Drive Setup ➙ Configure SATA as (AHCI/RAID).
c. Select RAID.
• NVMe RAID mode:
a. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
b. Select Devices ➙ NVMe Setup ➙ NVMe RAID Mode (Enabled/Disabled).
c. Select Enabled.
2. Press F10 or Fn+F10 to save the changes and exit.
3. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
4. Select Devices ➙ RAIDXpert2 Configuration Utility to select drives and configure RAID.
RAID Levels
CAUTION:
• Only one redundant RAID array is supported by AMD-RAID. RAID1, RAID5, and RAID10 are all
redundant arrays.
• The AMD-RAID does not support more than eight arrays, including Non-RAID array.
• Multiple operating systems are not supported on AMD-RAID Array. If the system is booted from an
AMD-RAID bootable array, the first array in the Arrays section must be the bootable array. The
system boots only from the first array in the Arrays section. Refer to “Configure RAID with
RAIDXpert2 Configuration Utility” on page 34 to find the first array by viewing array details and
checking the array number.
Your computer supports the following RAID levels:
• RAID 0: striped disk array
© Copyright Lenovo 2020 33
– Provide the highest performance but no data redundancy. Data in the array is striped (distributed)
across several disks.
– Support 2-8 disks.
– RAID 0 arrays are useful for holding information, such as the operating system paging file, where
performance is extremely important but redundancy is not.
• RAID 1: mirrored disk array
– Mirror data on a partition of one disk to another.
– Support 2 disks.
– RAID 1 arrays are useful when there are only two disks available and data integrity is more important
than storage capacity.
• RAID 5: block-level striped disk array with distributed parity
– Stripe data as well as parity, across all disks in the array.
– Support 3-8 disks.
– Offer exceptional read performance and redundancy.
• RAID 10: striped and mirrored disk array (a combination of RAID 0 and RAID 1)
– Combine mirrors and stripe sets. RAID 10 allows multiple disk failures, up to 1 failure in each mirror that
has been striped.
– Support 4, 6, or 8 disks.
– Offer better performance than a simple mirror because of the extra disks. Require twice the disk space
of RAID 1 to offer redundancy.
• Volume (JBOD):
– RAIDXpert2 Configuration Utility treats one or more disks or the unused space on a disk as a single
array.
– Support 1-8 disks.
– Provide the ability to link-together storage from one or several disks, regardless of the size of the space
on those disks. It is useful in scavenging space on disks unused by other disks in the array. It does not
provide performance benefits or data redundancy. Disk failure will result in data loss.
• RAIDABLE (also known as RAID Ready):
– Allow a RAIDABLE disk to be transformed later to RAID 0 or RAID 1.
– Support 1 disk.
Configure RAID with RAIDXpert2 Configuration Utility
If your computer comes with the RAIDXpert2 Configuration Utility , you can follow the sections below to
configure RAID.
Initialize disks
New disks and legacy disks must be initialized before they can be used to create an AMD-RAID array.
Initialization writes AMD-RAID configuration information (metadata) to a disk.
CAUTION:
• If a disk is part of an AMD-RAID array, the disk cannot be selected for initialization. To initialize the
disk anyway, delete the AMD-RAID array. Data on the disk is deleted during initialization so ensure
the correct disks are chosen to initialize.
• A legacy disk can contain valid data. When a legacy array is deleted, all data on the disk is lost.
34 P620 User Guide
1. Enter the RAIDXpert2 Configuration Utility menu. Then, use the arrow keys to select Physical Disk
Management and press Enter.
2. Use the arrow keys to select Select Physical Disk Operations and press Enter.
3. Use the arrow keys to select Initialize Disk and press Enter.
4. Select the disk(s) to initialize:
a. Use the arrow keys to select a disk and press the Space Bar or Enter. Multiple disks can be selected
using this method.
b. Use the arrow keys to select OK and press Enter.
c. Review the warning message. If you want to proceed, use the arrow keys to select YES and press
Enter.
Note: The Initialization process takes about 10 to 15 seconds. During initialization, a complete re-
scan of all channels is done automatically.
Create arrays
Arrays can be created after the disks are initialized:
1. Enter the RAIDXpert2 Configuration Utility menu. Then, use the arrow keys to select Array
Management and press Enter.
2. Use the arrow keys to select Create Array and press Enter.
3. Use the arrow keys to select Select RAID Level ➙ RAID Level and press Enter.
Note: Some of the RAID levels might not be displayed because the number of installed storage drives
varies.
4. Select the disks with which to create the array:
a. Use the arrow keys to select Physical Disks and press Enter.
b. Use the arrow keys to select desired disks and press the Space Bar or Enter.
c. Use the arrow keys to select Apply Changes and press Enter.
5. Refer to the table below for the default cache tag size (CTS).
Array type Default CTS
HDD Array 64k
SSD Array 64k
All NVMe Array 256k
6. Use the arrow keys to select Read Cache Policy and press Enter. Select the desired read cache policy
and press Enter.
7. Use the arrow keys to select Write Cache Policy and press Enter. Select the desired write cache policy
and press Enter.
8. Use the arrow keys to select Create Array and press Enter.
Delete arrays
CAUTION:
• Deleting an array permanently destroys all data that is on the array. This action cannot be recalled
and it is very unlikely the data can be recovered.
• Do not delete the first array listed in the Arrays section, if it is the AMD-RAID bootable array. Doing
this deletes the operating system and AMD-RAID files.
Chapter 6.RAID 35
1. Enter the RAIDXpert2 Configuration Utility menu. Then, use the arrow keys to select Array
Management and press Enter.
2. Use the arrow keys to select Delete Arrays and press Enter.
3. Select the array(s) to delete:
a. Use the arrow keys to select the desired array or multiple arrays, then press the Space Bar or Enter
to change the option to Enabled for deletion.
b. If you want to select all of the arrays, use the arrow keys to select Check all and press Enter.
c. Use the arrow keys to select Delete Array and press the Space Bar or Enter.
d. Review the warning message. If you want to proceed, press the Space Bar or Enter.
e. Use the arrow keys to select Yes to delete arrays.
View array details
This option displays the details of an array. Nothing can be changed using this menu option. It is for
informational purposes only.
1. Enter the RAIDXpert2 Configuration Utility menu. Then, use the arrow keys to select Array
Management and press Enter.
2. Use the arrow keys to select Select Manage Array Properties and press Enter.
3. Use the arrow keys to select Select Array and press Enter. Select the desired array and press Enter.
4. Use the arrow keys to select View Associated Physical Disks and press Enter.
5. Press the Space Bar to select one of the members of the Array.
6. Use the arrow keys to select View Physical Disk Properties and press Enter.
7. Information about the array is displayed below Select Array header:
• Array number
• RAID level
• State
• Size
• Cache Tag Size
• Cache settings
• Associated physical disks
8. To view another array, press ESC twice and perform steps 2 through 7 again.
9. Press ESC to exit the main menu.
36 P620 User Guide
Chapter 7. Troubleshooting, diagnostics, and recovery
This chapter provides solutions to resolve computer problems. Use the basic procedure as a starting point
for resolving computer problems.
Basic procedure for resolving computer problems
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
1. Check that:
a. The cables for all connected devices are connected correctly and securely.
b. All components have been reassembled correctly.
c. All connected devices that require ac power are connected to properly grounded and working
electrical outlets.
d. All connected devices are enabled in UEFI BIOS.
2. Use an antivirus program (if any) to see if the computer has been infected by a virus. If the program
detects a virus, remove the virus.
3. See Chapter 7 “Troubleshooting, diagnostics, and recovery” on page 37 to resolve the problem you are
experiencing, run the diagnostic program, and recover your operating system.
4. If the problem persists, contact Lenovo. See Chapter 9 “Help and support” on page 101.
Troubleshooting
Use the troubleshooting information to find solutions to problems that have definite symptoms.
Startup problems
Problem Solution
The computer does not start up when you
press the power button.
• Ensure that the power cord is correctly connected to the rear of the
computer and to a working electrical outlet.
• If the 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 does not start up from
the correct storage drive or fails to start up
• Ensure that all storage drive signal cables and power cables are
connected correctly.
• Ensure that the storage drive the computer starts up from is listed
as the first startup device in UEFI BIOS.
• In rare cases, the storage drive with the operating system might get
corrupted or damaged. In such cases, you might need to replace
the storage drive.
The computer beeps multiple times before
the operating system starts up. Ensure that no keys are stuck.
© Copyright Lenovo 2020 37
Audio problems
Problem Solution
The audio cannot be heard on the Windows®
operating system.
• 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. Check the speaker and volume settings. Do not mute the
speaker or set the volume at a very low level.
• If your computer has 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 connector on the computer. Most
speaker cables are color-coded to match the audio connector.
Note: When external-speaker or headphone cables are connected
to the audio connector, 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 in the
Microsoft 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 SoundBlaster Pro or
SoundBlaster emulation.
• Ensure that the audio device drivers are correctly installed.
The sound does not come from the headset
or headphones.
Select the headset or headphones as the default audio output device
in advanced sound settings.
The sound comes from one of the external
speakers.
• Ensure that the speaker cable is inserted completely into the
connector on the computer.
• Ensure that the cable that connects the left speaker to the right
speaker is securely connected.
• Ensure that the balance settings are set correctly.
1. Right-click the volume icon in the Windows notification area
on the taskbar. Then, click Open Volume Mixer and select the
desired speaker.
2. Click the speaker icon on top of the volume control, and then
click the Levels tab.
Network problems
Note: The Wi-Fi® and Bluetooth features are optional.
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Problem Solution
The computer cannot connect to an Ethernet
LAN.
• Connect the cable from the Ethernet connector to the RJ45
connector of the hub.
• Enable the Ethernet LAN feature in UEFI BIOS.
• Enable the Ethernet LAN adapter.
1. Go to Control Panel and view by large icons or small icons.
2. Click Network and Sharing Center ➙ Change adapter
settings.
3. Right-click the Ethernet LAN adapter icon and click Enable.
• Update or reinstall the Ethernet LAN driver.
• 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 a 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.
Connect the network cable to the Ethernet connector using Category
5 wiring and a 100 BASE-T hub/switch (not 100 BASE-X).
The Wake On LAN (WOL) feature does not
work. Enable the Wake On LAN feature in UEFI BIOS.
The Wi-Fi feature does not work.
• Enable the Wi-Fi feature in UEFI BIOS.
• Enable all Wi-Fi devices.
1. Right-click the Start button to open the Start context menu.
2. Click Device Manager. Type the administrator password or
provide confirmation, if prompted.
3. Expand Network adapters to display all network devices.
4. Right-click each Wi-Fi device, and then click Enable device.
• Enable the Wi-Fi feature in Windows Settings.
1. Open the Start menu.
2. Click Settings ➙ Network & Internet ➙ Wi-Fi.
3. Enable the Wi-Fi feature.
• Update or reinstall the Wi-Fi driver.
Chapter 7.Troubleshooting, diagnostics, and recovery 39
Problem Solution
The Bluetooth feature does not work.
• Enable the Bluetooth feature in UEFI BIOS.
• Enable all Bluetooth devices.
1. Right-click the Start button to open the Start context menu.
2. Click Device Manager. Type the administrator password or
provide confirmation if prompted.
3. Expand Bluetooth to display all Bluetooth devices. Right-click
each Bluetooth device, and then click Enable device.
4. Expand Network adapters to display all network devices.
Right-click each Bluetooth device, and then click Enable
device.
• Turn on the Bluetooth radio.
1. 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.
Sound does not come from the Bluetooth
headset or headphones.
Select the Bluetooth headset or headphones as the default audio
output device in advanced sound settings.
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Performance problems
Problem Solution
Excessive fragmented files exist on the
storage drives.
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. Open the Start menu.
3. Click Windows System ➙ File Explorer ➙ This PC.
4. Right-click your C drive and then click Properties.
5. Click the Tools tab.
6. Click Optimize. Select the drive as desired, and then click
Optimize.
7. Follow the on-screen instructions.
The free storage drive space is insufficient.
• Clean out your Inbox, Sent Items, and Deleted Items folders from
your e-mail application.
• Clean up your C drive.
1. 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 the
category you want to delete, and then click OK.
• Disable some Windows features or remove some unnecessary
programs.
1. Go to Control Panel and view by large icons or small icons.
2. Click Programs and Features.
3. Do one of the following:
– To disable some Windows features, click Turn Windows
features on or off. Follow the on-screen instructions.
– 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.
• Right-click a blank area on the taskbar and open Task Manager.
Then, end some tasks you are not performing.
• Install additional memory modules.
Chapter 7.Troubleshooting, diagnostics, and recovery 41
Storage drive problems
Problem Solution
Some or all storage drives are missing from
the BIOS menu.
• Ensure that the signal cables and power cables for all the storage
drives are connected correctly.
• Ensure that the computer is configured correctly to support the
storage drives.
– If the computer is installed with SATA storage drives, ensure
that the SATA storage drive enablement module (one to five
storage drives) is installed.
– If the computer is installed with SAS storage drives, ensure that
the SAS storage drive enablement module (one to five storage
drives) or the LSI MegaRAID SAS adapter is installed.
CD or DVD problems
Problem Solution
A CD or DVD does not work.
• Ensure that the optical drive supports the CD or DVD.
• 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 power cable and signal cable are securely
connected to the drive.
• Ensure that the disc you are using is not scratched or damaged.
Try inserting another disc that you know works.
• 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.
Ensure that the CD or DVD drive is set as the top priority of the boot
priority order in UEFI BIOS.
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.
• 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.
• Ensure that the disc surface is clean and not scratched.
• Check the disc or packaging for regional coding. You might need
to purchase a disc with coding for the region where you are using
the computer.
No audio or only an intermittent audio comes
out while a DVD movie is playing.
• Check the volume control settings on the 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.
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Problem Solution
The playback is slow or choppy.
• Disable any background programs, such as AntiVirus or Desktop
Themes.
• Ensure that video resolution is less than 1152 x 864 pixels.
A message indicating invalid disc or no disc
found is displayed.
• Ensure that the disc is in the drive with the shiny side of the disc
facing down.
• Ensure that video resolution is less 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.
Serial connector problems
Problem Solution
The serial connector cannot be accessed.
• 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.
USB device problems
Problem Solution
A USB device cannot be accessed.
• 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 in UEFI
BIOS.
Chapter 7.Troubleshooting, diagnostics, and recovery 43
Software problems
Problem Solution
Some programs do not work as expected.
1. Check whether the problem is caused by a program.
a. Ensure that the software is compatible with the computer.
Refer to the information supplied with the software for more
information.
b. Verify that other software works correctly on the 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.
• Update the program.
• Uninstall the program and then reinstall it. To download a
program that is preinstalled on your computer, go to https://
pcsupport.lenovo.com and follow the on-screen instructions.
Diagnostics
Use diagnostic solutions to test hardware components and report operating-system-controlled settings that
interfere with the correct operation of your computer.
Lenovo diagnostic tools
This section introduces a set of Lenovo diagnostic tools. Choose an appropriate tool depending on whether
an error code or error message is displayed:
An error message pops up in the Windows notification area, an error code is displayed on the four-digit
diagnostic display (for selected models) on the front panel, or the diagnostic indicator on the front panel turns
on:
• If a diagnostic program can be launched properly:
– Use “ThinkStation Diagnostics” on page 44.
– Record the error code displayed on the four-digit diagnostic display (for selected models) or in
ThinkStation Diagnostics, and then decode the error at https://www.thinkworkstationsoftware.com/
codes.
• If your computer does not function:
– Use “Lenovo PC Diagnostics” on page 45.
– Record the error code displayed on the four-digit diagnostic display (for selected models) or on your
smartphone with Lenovo PC Diagnostics installed, and then decode the error at https://
www.thinkworkstationsoftware.com/codes.
For more information, go to:
• https://pcsupport.lenovo.com/lenovodiagnosticsolutions
• https://www.thinkworkstationsoftware.com/diags
ThinkStation Diagnostics
You can download ThinkStation Diagnostics at:
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https://pcsupport.lenovo.com/lenovodiagnosticsolutions/downloads
To diagnose problems with ThinkStation Diagnostics:
1. When an error message pops up in the Windows notification area, click the error message or the
ThinkStation Diagnostics icon to launch the program.
2. All events are logged locally in the program. Locate the related event and view the event log to find
possible solutions.
If you want to disable ThinkStation Diagnostics, uninstall it directly.
Lenovo PC Diagnostics
Lenovo PC Diagnostics is an app installed on your smartphone to decode beep errors when an error with
beeps is emitted from your computers. To diagnose problems with Lenovo PC Diagnostics:
1. Download Lenovo PC Diagnostics from app stores or the Le Store Web site and install it on your
smartphone:
• Le Store or Google Play Store (Android)
• iTunes App Store (iOS)
• Le Store Web site https://www.lenovomm.com/appdetail/com.lenovo.lenovoworkstationdiagnostics/85
2. When an error code is displayed on the four-digit diagnostic display (for selected models) on the front
panel or the diagnostic indicator on the front panel turns on, launch the app and place your smartphone
near the computer.
3. Press Fn on your computer to emit the beep again. The app decodes the beep error and shows possible
solutions on the smartphone.
Lenovo Vantage
Lenovo Vantage is preinstalled on your computer. To diagnose problems with Lenovo Vantage:
1. Open the Start menu.
2. Click Lenovo Vantage.
3. Follow the on-screen instructions and run a hardware scan.
If you are unable to isolate and resolve the problem after running Lenovo Vantage, save and print the log files
created by the program. You might need the log files when you speak to a Lenovo technical support
representative.
Recovery
This section introduces the recovery information of the Windows 10 operating system. Ensure that you read
and follow the on-screen recovery instructions. The data on your computer might be deleted during the
recovery process. To avoid data loss, make a backup copy of all the data that you want to keep.
Restore system files and settings to an earlier point
1. Go to Control Panel and view by large icons or small icons.
2. Click Recovery ➙ Open System Restore. Then, follow the on-screen instructions.
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.
Chapter 7.Troubleshooting, diagnostics, and recovery 45
1. Go to Control Panel and view by large icons or small icons.
2. Click File History ➙ Restore personal files. Then, follow the on-screen instructions.
Reset your computer
In the resetting process, you can choose to keep your files or remove them when you reinstall the operating
system.
Note: The items in the graphical user interface (GUI) might change without notice.
1. Open the Start menu, and then click Settings ➙ Update & Security ➙ Recovery.
2. In the Reset this PC section, click Get started.
3. Follow the on-screen instructions to reset your computer.
Use advanced options
1. Open the Start menu, and then click Settings ➙ Update & security ➙ Recovery.
2. In the Advanced startup section, click Restart now ➙ Troubleshoot ➙ Advanced options.
3. Select a preferred option, and then follow the on-screen instructions.
Windows automatic recovery
Note: Ensure that your computer is connected to ac power during the recovery process.
The Windows recovery environment on your computer operates independently from the Windows 10
operating system. It enables you to recover or repair the operating system even if the Windows 10 operating
system fails to start.
After two consecutive failed boot attempts, the Windows recovery environment starts automatically. Then,
you can choose repair and recovery options by following the on-screen instructions.
Create and use a recovery USB device
It is recommended that you create a recovery USB drive as early as possible as a backup for the Windows
recovery programs. With the recovery USB drive, you can troubleshoot and fix the problems even if the
preinstalled Windows recovery programs are damaged. If you did not create a recovery USB drive as a
precautionary measure, you can contact Lenovo Customer Support Center and purchase one from Lenovo.
For a list of the Lenovo Support phone numbers for your country or region, go to:
https://pcsupport.lenovo.com/supportphonelist
Create a recovery USB drive
Attention: The creation process deletes anything stored on the USB drive. To avoid data loss, make a
backup copy of all the data that you want to keep.
1. Ensure that your computer is connected to ac power.
2. Prepare a USB drive with capacity of at least 16 GB. The actual USB capacity required depends on the
size of the recovery image.
3. Connect the prepared USB drive to the computer.
4. Type recovery in the search box. Then, click Create a recovery drive.
5. Click Yes in the User Account Control window to allow the Recovery Media Creator program to start.
6. In the Recovery Drive window, follow the on-screen instructions to create a recovery USB drive.
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Use the recovery USB drive
If your computer cannot be started, go to Chapter 9 “Help and support” on page 101 first to try to solve the
problem by yourself. If the problem persists, use the recovery USB drive to recover your computer.
1. Ensure that your computer is connected to ac power.
2. Connect the recovery USB drive to the computer.
3. Turn on or restart the computer. When the logo screen is displayed, press F12. The Boot Menu window
opens.
4. Select the recovery USB drive as the boot device. Then, follow the on-screen instructions to complete
the process.
Update the device driver
Attention: Reinstalling device drivers will change the current configuration of the computer.
You should download the latest driver for a component when you notice poor performance from that
component or when you added a component. This action might eliminate the driver as the potential cause of
a problem. Download and install the latest driver by one of the following methods:
• From Lenovo Vantage:
Open Lenovo Vantage to check the available update packages. If the latest UEFI BIOS update package is
available, follow the on-screen instructions to download and install the package.
• From the Lenovo Support Web site:
Go to https://pcsupport.lenovo.com and select the entry for your computer. Then, follow the on-screen
instructions to download and install necessary drivers and software.
• From Windows Update:
Note: The device drivers provided by Windows Update might not be tested by Lenovo. It is
recommended that you get device drivers from Lenovo.
1. Open the Start menu.
2. Click Settings ➙ Update & Security ➙ Windows Update.
3. Follow the on-screen instructions.
Chapter 7.Troubleshooting, diagnostics, and recovery 47
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Chapter 8. CRU replacement
What are CRUs
Customer Replaceable Units (CRUs) are parts that can be upgraded or replaced by the customer. Lenovo
computers contain the following types of CRUs:
• Self-service CRUs: Refer to parts that can be installed or replaced easily by customer themselves or by
trained service technicians at an additional cost.
• Optional-service CRUs: Refer to parts that can be installed or replaced by customers with a greater skill
level. Trained service technicians can also provide service to install or replace the parts under the type of
warranty designated for the customer’s machine.
If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement
instructions are shipped with your product and are available from Lenovo at any time upon request. You
might be required to return the defective part that is replaced by the CRU. When return is required: (1) return
instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you
might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30)
days of your receipt of the replacement CRU. For full details, see the Lenovo Limited Warranty
documentation at:
https://www.lenovo.com/warranty/llw_02
Refer to the following CRU list for your computer.
Self-service CRUs
• Computer cover
• Cover presence switch
• Flex module*
• Front-access storage enclosure*
• Front fan assembly
• ID badge
• Multi-drive conversion kit*
• Hard disk drive
• Keyboard*
• Memory module
• Mouse*
• Power cord
• Power supply assembly
• Slim optical drive*
• Slim-optical-drive bracket*
• Slim-optical-drive adapter*
• Storage drive cage*
Optional-service CRUs
• Coin-cell battery
• Graphics card*
© Copyright Lenovo 2020 49
• Graphics card dongle*
• Memory module active cooler and duct
• M.2 solid-state drive*
• M.2 solid-state drive heat sink*
• PCIe card*
• Rear fan assembly
• Wi-Fi adapter*
• Wi-Fi antenna*
• Wi-Fi card*
* for selected models
Replace a CRU
Follow the replacement procedure to replace a CRU.
ID badge
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
Replacement procedure
1. Remove the ID badge.
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Computer cover
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
Before you open the computer cover, turn off the computer and wait several minutes until the computer is
cool.
Replacement procedure
1. Remove any media from the drives and turn off all connected devices and the computer.
2. Disconnect all power cords from electrical outlets and disconnect all cables from the computer.
3. Unlock any locking device that secures the computer cover.
4. Remove the computer cover.
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5. Install the computer cover.
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6. Reconnect the power cord and all disconnected cables to the computer.
Note: If a locking device is available, use it to lock the computer.
Device in the flex bay
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
The flex bay of your computer supports the following devices:
• Flex module
• Front-access storage enclosure
• Multi-drive conversion kit
• Slim-optical-drive adapter
Note: The following instructions on how to remove or install a slim-optical-drive adapter also apply to other
supported devices in the flex bay.
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
2. Locate the flex bay. See “Internal storage drives” on page 7.
3. Disconnect the signal cable and the power cable from the rear of the slim optical drive.
Note: If you are removing other supported devices from the flex bay, disconnect any additional cables
first.
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4. Remove the slim-optical-drive adapter.
5. Remove the slim optical drive from the failing adapter and install the slim optical drive into the new
adapter. See “Device in the multi-drive conversion kit” on page 62.
6. If you are installing a slim-optical-drive adapter into the flex bay with a plastic shield installed, press the
clip as shown to remove the plastic shield. If there is a metal static shield installed in the flex bay, remove
the metal static shield.
Chapter 8.CRU replacement 57
7. Install the slim-optical-drive adapter.
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8. Connect the signal cable and the power cable to the slim optical drive.
Note: Reconnect any cables removed from other supported devices.
9. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
Storage drive in the front-access storage enclosure
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
Attention: The internal storage drive is sensitive. Inappropriate handling might cause damage and
permanent loss of data. When handling the internal storage drive, observe the following guidelines:
• Replace the internal storage drive only for upgrade or repair. The internal storage drive is not designed for
frequent changes or replacement.
• Before replacing the internal storage drive, make a backup copy of all the data that you want to keep.
• Do not touch the contact edge of the internal storage drive. Otherwise, the internal storage drive might get
damaged.
• Do not apply pressure to the internal storage drive.
• Do not make the internal storage drive subject to physical shocks or vibration. Put the internal storage
drive on a soft material, such as cloth, to absorb physical shocks.
Chapter 8.CRU replacement 59
You can install or replace a storage drive in the front-access storage enclosure. The storage drive also can
be hot-swappable, which means that you can install or replace the drive without even turning off your
computer. Therefore, lock the enclosure cover to prevent the unexpected removal. The keys are attached at
the rear of the computer. Store the keys in a secure place.
The storage drive in the front-access storage enclosure is hot-swappable only when the following
requirements are met:
• The SATA cable of the front-access storage enclosure is connected to the eSATA connector on the
system board. To verify the cable connection, see “System board” on page 4 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.
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
2. Locate the flex bay. See “Internal storage drives” on page 7.
3. 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.
4. Unlock the enclosure cover with the provided key as shown. Press the notch a to open the enclosure
cover.
5. Remove the bracket out of the front-access storage enclosure.
6. Remove the 3.5-inch storage drive from the bracket.
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7. Install a 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 during operation.
8. Install the new 3.5-inch storage drive into the front-access storage enclosure. Press the notch to secure
the enclosure cover and lock the enclosure cover with the key.
9. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
Chapter 8.CRU replacement 61
Device in the multi-drive conversion kit
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
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
Slim optical drive
1. Remove the computer cover. See “Computer cover” on page 52.
2. Ensure that all the cables are disconnected from the kit. Remove the kit from the front of the computer.
3. Remove the slim optical drive with the bracket from the kit.
4. Remove the bracket from the slim optical drive.
5. Install the bracket to the new slim optical drive.
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6. Install the slim optical drive with the bracket into the kit.
7. Slide the kit into the flex bay and reconnect the disconnected cables to the kit.
8. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
3.5-inch storage drive
1. Remove the computer cover. See “Computer cover” on page 52.
2. Ensure that all the cables are disconnected from the kit. Remove the kit from the front of the computer.
3. Open the rear cover of the kit.
4. Remove the conversion bracket from the kit.
Chapter 8.CRU replacement 63
5. Remove the 3.5-inch storage drive from the conversion bracket. Do not touch the circuit board 1 on the
drive.
6. To install a 3.5-inch storage drive, ensure that the conversion bracket is unfolded. To unfold the bracket:
a. Remove pins 1 and install them into slots 2.
b. Release tabs 1, 2, and 3 from the corresponding slots.
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8. Install the new 3.5-inch storage drive with the bracket into the kit.
9. Close the rear cover of the kit.
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10. Slide the kit into the flex bay and reconnect the disconnected cables to the kit.
11. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
Cover presence switch
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
2. Disconnect the cover presence switch cable from the system board. See “System board” on page 4.
3. Remove the cover presence switch.
4. Install a new cover presence switch.
5. Connect the cable of the new cover presence switch to the cover presence switch connector on the
system board.
6. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
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Storage drive in a storage drive bay
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
Attention: The internal storage drive is sensitive. Inappropriate handling might cause damage and
permanent loss of data. When handling the internal storage drive, observe the following guidelines:
• Replace the internal storage drive only for upgrade or repair. The internal storage drive is not designed for
frequent changes or replacement.
• Before replacing the internal storage drive, make a backup copy of all the data that you want to keep.
• Do not touch the contact edge of the internal storage drive. Otherwise, the internal storage drive might get
damaged.
• Do not apply pressure to the internal storage drive.
• Do not make the internal storage drive subject to physical shocks or vibration. Put the internal storage
drive on a soft material, such as cloth, to absorb physical shocks.
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
2. Locate the storage drive bay. See “Internal storage drives” on page 7.
3. Disconnect all the cables from the storage drive.
4. Remove the conversion bracket out of the storage drive bay.
5. Remove the 3.5-inch storage drive from the bracket. Do not touch the circuit board 1 on the drive.
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d. Insert tabs 1, 2, and 3 into the corresponding slots. Ensure that the tabs are secured in place.
7. Install the new 3.5-inch storage drive into the bracket. Do not touch the circuit board 5 on the drive.
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8. Install the new 3.5-inch storage drive with the conversion bracket into the storage drive bay.
9. Connect the signal cable and the power cable to the new storage drive.
10. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
Storage drive cage
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
Your computer might come with an optional storage drive cage.
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
Chapter 8.CRU replacement 71
2. Remove the front fan assembly. See “Front fan assembly” on page 87.
3. Locate the storage drive cage. See “Internal storage drives” on page 7..
4. Disconnect all the cables from the storage drive.
5. Remove the storage drives out of the storage drive cage. See “Storage drive in a storage drive bay” on
page 68.
6. Remove the storage drive cage.
7. Install a storage drive cage:
a. Place the upper edge of the storage drive cage under the front-fan-assembly retainer as shown.
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8. Slide the storage drives into the storage drive cage. Reconnect the removed cables to the storage
drives. See “Storage drive in a storage drive bay” on page 68.
9. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
M.2 solid-state drive
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
Attention: The internal storage drive is sensitive. Inappropriate handling might cause damage and
permanent loss of data. When handling the internal storage drive, observe the following guidelines:
• Replace the internal storage drive only for upgrade or repair. The internal storage drive is not designed for
frequent changes or replacement.
• Before replacing the internal storage drive, make a backup copy of all the data that you want to keep.
• Do not touch the contact edge of the internal storage drive. Otherwise, the internal storage drive might get
damaged.
• Do not apply pressure to the internal storage drive.
• Do not make the internal storage drive subject to physical shocks or vibration. Put the internal storage
drive on a soft material, such as cloth, to absorb physical shocks.
An M.2 solid-state drive can be installed on the system board or on an M.2 solid-state drive PCIe adapter.
M.2 solid-state drive on the system board
1. Remove the computer cover. See “Computer cover” on page 52.
2. Lay the computer on its side for easier access to the M.2 solid-state drive slots.
3. Locate the M.2 solid-state drive. See “Internal storage drives” on page 7.
4. Remove the memory cooler and duct. See “Internal storage drives” on page 7.
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5. Remove the heat sink for the M.2 solid-state drive.
6. Remove the M.2 solid-state drive.
7. Install an M.2 solid-state drive.
Notes:
• Do not touch the circuit board of the M.2 solid-state drive.
• If only one M.2 solid-state drive is installed, ensure that the drive is installed in the M.2 solid-state
drive slot 1 ( 19 ). See “System board” on page 4.
Chapter 8.CRU replacement 75
8. Install and secure the heat sink for the M.2 solid-state drive.
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9. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
M.2 solid-state drive in an M.2 solid-state drive PCIe adapter
Install M.2 solid-state drives in the alphabetic order as shown.
1. Remove the computer cover. See “Computer cover” on page 52.
2. Remove the M.2 solid-state drive PCIe adapter from the PCIe card slot. See “Full-length PCIe card” on
page 85.
3. Open the cover.
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4. Remove the M.2 solid-state drive heat sink.
5. Pull the handle of the retention latch outward to release the M.2 solid-state drive. Then, remove the M.2
solid-state drive from the PCIe adapter.
6. If necessary, move the retention latch to an appropriate location to suit the length of the new M.2 solid-
state drive.
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7. If necessary, remove the film on the thermal pad on which you want to install the M.2 solid-state drive.
Pull the handle of the retention latch outward to the open position.
8. Install the M.2 solid-state drive. Then, insert the plug of the retention latch into the hole to secure the
new drive.
Note: Do not touch the circuit board of the M.2 solid-state drive.
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9. Install the heat sink for the M.2 solid-state drive.
10. Close the cover.
11. Install the M.2 solid-state drive PCIe adapter in a PCIe x16 card slot on the system board. See “System
board” on page 4.
12. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
Power supply assembly
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
Although there are no moving parts in the computer after the power cord has been disconnected, the
following warnings are required for your safety.
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Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury, seek
medical care immediately. Never remove the cover on a power supply or any part that has the following label
attached.
Hazardous voltage, current, and energy levels are present inside any component that has this label attached.
There are no serviceable parts inside these components. If you suspect a problem with one of these parts,
contact a service technician.
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
2. Remove the power supply assembly.
3. Install the power supply assembly.
4. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
PCIe card
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
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Install PCIe cards according to the corresponding slot types and the following illustrated installation order:
Figure 2. PCIe card installation order
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
2. Lay the computer on its side for easier access to the system board.
3. Open the latch in the front fan assembly and remove the PCIe card retainer.
Note: The PCIe card retainer is only available on some models.
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5. To install a new PCIe card, pivot the PCIe card latch to the open position.
6. Remove the appropriate metal slot cover. Install the new card into the appropriate slot on the system
board. See “System board” on page 4.
7. Pivot the PCIe card latch and push it back in until it snaps into position.
8. Install a PCIe card retainer, if any.
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Full-length PCIe card
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
2. Lay the computer on its side for easier access to the system board.
3. Open the PCIe card latch.
Chapter 8.CRU replacement 85
4. Open the latch in the front fan assembly.
5. Disconnect the power cable from the full-length PCIe card. Then, remove the card.
Note: The card might fit tightly into the slot. If necessary, alternately move each side of the card a small
amount until the card is removed from the slot.
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6. To install a full-length PCIe card:
a. If you are installing a new full-length PCIe card, open PCIe card latch and remove the appropriate
metal slot cover.
b. Align the extender on the new full-length PCIe card with the corresponding slot in the front fan
assembly. Then, install the new card into the appropriate slot on the system board. See “System
board” on page 4.
Note: It is recommended that you install the full-length PCIe card into a PCIe x16 card slot for best
performance.
7. Pivot the PCIe card latch and push it back in until it snaps into position. Then, pivot the tab on the front
fan assembly to close the latch inside.
8. Connect one end of the power cable to the new full-length PCIe card and the other end to the
appropriate power connector on the system board. See “System board” on page 4.
9. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
Front fan assembly
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
CAUTION:
Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury,
seek medical care immediately.
Chapter 8.CRU replacement 87
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
2. Remove the following devices if any:
• Full-length PCIe cards, see “Full-length PCIe card” on page 85
• PCIe card retainer, see “PCIe card” on page 81
3. Remove the front fan assembly.
Note: When you slide out the front fan assembly, avoid pulling the front-fan-assembly cable.
4. Disconnect the front-fan-assembly cable from the front-fan-assembly connector on the system board.
5. Connect the cable of the new front fan assembly to the front-fan-assembly connector on the system
board. See “System board” on page 4.
6. Install a new front fan assembly.
7. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
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Rear fan assembly
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
CAUTION:
Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury,
seek medical care immediately.
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
2. Disconnect the rear-fan-assembly cable from the rear-fan-assembly connector on the system board.
3. Remove the rear fan assembly by breaking or cutting the rubber mounts and gently pulling the rear fan
assembly out of the chassis.
4. Install a new rear fan assembly.
Chapter 8.CRU replacement 89
a. Connect the rear-fan-assembly cable to the rear-fan-assembly connector on the system board. See
“System board” on page 4.
5. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
Memory module active cooler and duct
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
2. Lay the computer on its side for easier access to the system board.
3. Remove the memory module active cooler and duct.
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4. Install a memory module active cooler and duct.
5. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
Memory module
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
Your computer has eight slots for installing DDR4 RDIMMs that provide up to a maximum of 512 GB system
memory. When removing or installing a memory module, use the following guidelines:
• Use 16 GB, 32 GB, or 64 GB DDR4 ECC RDIMMs in any combination up to a maximum of 512 GB.
• Ensure that you follow the installation order for memory modules shown in the following table.
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Memory modules Installation order
one Slot 7
two Slot 7 and slot 8
Four Slot 7, slot 8, slot 2, and slot 1
Eight Slot 1 to slot 8
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
2. Lay the computer on its side for easier access to the system board.
3. Remove the memory cooler and duct. See “Memory module active cooler and duct” on page 90.
4. Remove the memory module.
5. Install a memory module.
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6. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
Coin-cell battery
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
Your computer has a special type of memory that maintains the date, time, and settings for built-in features,
such as parallel connector assignments (configurations). A coin-cell battery keeps this information active
when you turn off the computer.
The coin-cell battery normally requires no charging or maintenance throughout its life; however, no coin-cell
battery lasts forever. If the coin-cell battery fails, the date and time information is lost. An error message is
displayed when you turn on the computer.
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
2. Disengage the latch.
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3. Remove the coin-cell battery.
4. Install the coin-cell battery.
5. Secure the coin-cell battery with the latch.
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6. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
7. Reset the system date and time in the UEFI BIOS menu.
To dispose of the coin-cell battery, refer to the “Lithium coin-cell battery notice” in the Safety and Warranty
Guide.
Wi-Fi units
Prerequisite
Before you start, read Appendix A “Important safety information” on page 105 and print the following
instructions.
The Wi-Fi units include a Wi-Fi adapter, a Wi-Fi card, and a Wi-Fi antenna.
Replacement procedure
1. Remove the computer cover. See “Computer cover” on page 52.
2. Remove the Wi-Fi antenna.
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3. If your computer comes with a Wi-Fi card that supports the Bluetooth function, disconnect the Bluetooth
cable from the Wi-Fi adapter.
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Note: The card might fit tightly into the slot. If necessary, alternately move each side of the card a small
amount until the card is removed from the slot.
6. Remove the Wi-Fi card.
7. Install a new Wi-Fi card.
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8. Install the Wi-Fi adapter into the PCIe card slot on the system board. See “System board” on page 4.
Then, pivot the PCIe card latch and push it back in until it snaps into position.
9. If the installed Wi-Fi card supports the Bluetooth function, connect a Bluetooth cable to the Wi-Fi
adapter.
Note: The Bluetooth cable connects the Bluetooth connector on the Wi-Fi adapter to one of the internal
USB 2.0 connectors on the system board. See “System board” on page 4.
10. Install the Wi-Fi antenna.
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11. Tighten the Wi-Fi antenna cable connectors to secure them to the rear of the computer.
12. Reinstall all removed parts. Then, reconnect the power cord and all disconnected cables to the
computer.
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Chapter 9. Help and support
Self-help resources
Use the following self-help resources to learn more about the computer and troubleshoot problems.
Resources How to access?
Use Lenovo Vantage to:
• Configure device settings.
• Download and install UEFI BIOS, drivers and firmware
updates.
• Secure you computer from outside threats.
• Diagnose hardware problems.
• Check the computer warranty status.
• Access User Guide and helpful articles.
• Open the Start menu and click Lenovo Vantage.
• Use Windows Search.
Product documentation:
• Safety and Warranty Guide
• Setup Guide
• This User Guide
• Regulatory Notice
Go to https://pcsupport.lenovo.com. Then, follow the on-
screen instructions to filter out the documentation you
want.
Lenovo Support Web site with the latest support
information of the following:
• Drivers and software
• Diagnostic solutions
• Product and service warranty
• Product and parts details
• Knowledge base and frequently asked questions
https://pcsupport.lenovo.com
Windows help information
• Open the Start menu and click Get Help or Tips.
• Use Windows Search or the Cortana® personal
assistant.
• Microsoft support Web site:
https://support.microsoft.com
© Copyright Lenovo 2020 101
Call Lenovo
If you have tried to correct the problem yourself and still need help, you can call Lenovo Customer Support
Center.
Before you contact Lenovo
Prepare the following before you contact Lenovo:
1. Record the problem symptoms and details:
• What is the problem? Is it continuous or intermittent?
• Any error message or error code?
• What operating system are you using? Which version?
• Which software applications were running at the time of the problem?
• Can the problem be reproduced? If so, how?
2. Record the system information:
• Product name
• Machine type and serial number
The following illustration shows where to find the machine type and serial number of your computer.
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Lenovo Customer Support Center
During the warranty period, you can call Lenovo Customer Support Center for help.
Telephone numbers
For a list of the Lenovo Support phone numbers for your country or region, 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.
Services available during the warranty period
• Problem determination - Trained personnel are available to assist you with determining if you have a
hardware problem and deciding what action is necessary to fix the problem.
• Lenovo hardware repair - If the problem is determined to be caused by Lenovo hardware under warranty,
trained service personnel are available to provide the applicable level of service.
• Engineering change management - Occasionally, there might be changes that are required after a product
has been sold. Lenovo or your reseller, if authorized by Lenovo, will make selected Engineering Changes
(ECs) that apply to your hardware available.
Services not covered
• Replacement or use of parts not manufactured for or by Lenovo or nonwarranted parts
• Identification of software problem sources
• Configuration of UEFI 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
For the terms and conditions of the Lenovo Limited Warranty that apply to your Lenovo hardware product,
see Safety and Warranty Guide that comes with your computer.
Purchase additional services
During and after the warranty period, you can purchase additional services from Lenovo at:
https://www.lenovo.com/services
Service availability and service name might vary by country or region.
Chapter 9.Help and support 103
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Appendix A. Important safety information
Safety notices
This information can help you safely use your computer. Follow and retain all information included with your
computer. The information in this document does not alter the terms of your purchase agreement or the
Limited Warranty. For more information, go to:
• https://www.lenovo.com/warranty/llw_02
• https://pcsupport.lenovo.com/warrantylookup
Customer safety is important. Our products are developed to be safe and effective. However, personal
computers are electronic devices. Power cords, power adapters, and other features can create potential
safety risks that can result in physical injury or property damage, especially if misused. To reduce these risks,
follow the instructions included with your product, observe all warnings on the product and in the operating
instructions, and review the information included in this document carefully. By carefully following the
information contained in this document and provided with your product, you can help protect yourself from
hazards and create a safer computer work environment. If the computer is used in a manner not specified by
the manufacturer, the protection provided by the computer may be impaired.
Note: This information includes references to power adapters and batteries. In addition, some products
(such as speakers and monitors) ship with external power adapters. If you have such a product, this
information applies to your product. In addition, computer products contain a coin-sized internal battery that
provides power to the system clock even when the computer is unplugged, so the battery safety information
applies to all computer products.
Conditions that require immediate action
Products can become damaged due to misuse or neglect. Some product damage is serious enough
that the product should not be used again until it has been inspected and, if necessary, repaired by an
authorized servicer.
As with any electronic device, pay close attention to the product when it is turned on.
On very rare occasions, you might notice an odor or see a puff of smoke or sparks vent from your
product. You might also hear sounds like popping, cracking, or hissing. These might merely mean that
an internal electronic component has failed in a safe and controlled manner. Or, they might indicate a
potential safety issue. Do not take risks or attempt to diagnose the situation yourself. Contact the
Customer Support Center for further guidance. For a list of Service and Support phone numbers, see
the following Web site:
https://pcsupport.lenovo.com/supportphonelist
Frequently inspect your computer and its components for damage, wear, or signs of danger. If you
have any question about the condition of a component, do not use the product. Contact the Customer
Support Center or the product manufacturer for instructions on how to inspect the product and have it
repaired, if necessary.
In the unlikely event that you notice any of the following conditions, or if you have any safety concerns
with your product, stop using the product and unplug it from the power source and
telecommunication lines until you can speak to the Customer Support Center for further guidance.
© Copyright Lenovo 2020 105
• Power cords, plugs, power adapters, extension cords, surge protectors, or power supplies that are
cracked, broken, or damaged.
• Signs of overheating, smoke, sparks, or fire.
• Damage to a battery (such as cracks, dents, or creases), discharge from a battery, or a buildup of foreign
substances on the battery.
• A cracking, hissing, or popping sound, or strong odor that comes from the product.
• Signs that liquid has been spilled or an object has fallen onto the computer product, the power cord, or
power adapter.
• The computer product, power cord, or power adapter has been exposed to water.
• The product has been dropped or damaged in any way.
• The product does not operate normally when you follow the operating instructions.
Note: If you notice these conditions with a product (such as an extension cord) that is not manufactured for
or by Lenovo, stop using that product until you can contact the product manufacturer for further instructions,
or until you get a suitable replacement.
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. If you have any
questions or concerns, contact the Customer Support Center.
Although there are no moving parts in the computer after the power cord has been disconnected, the
following warnings are required for your safety.
Moving Parts:
Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury, seek
medical care immediately.
Hot Surface:
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.
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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.
Sharp Edges:
When replacing CRUs, be cautious of sharp edges or corners that might cause injury. If you suffer an injury,
seek medical care immediately.
Power cords and power adapters
DANGER
Use only the power cords and power adapters supplied by the product manufacturer.
The power cords shall be safety approved. For Germany, it shall be H03VV-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 cords 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 pins 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.
To prevent possible overheating, do not cover the power adapter with clothing or other objects
when the power adapter is plugged into an electrical outlet.
Power cord notice
Note: The power cord and adapter provided with this product are intended to be used with this product
only. Do not use them with any other products.
For your safety, Lenovo provides a power cord with a grounded attachment plug to use with this product. To
avoid electrical shock, always use the power cord and plug with a properly grounded outlet.
Appendix A. Important safety information 107
Power cords provided by Lenovo in the United States and Canada are listed by Underwriter’s Laboratories
(UL) and certified by the Canadian Standards Association (CSA).
For units intended to be operated at 115 volts: Use a UL-listed and CSA-certified cord set consisting of a
minimum 18 AWG, Type SVT or SJT, three-conductor cord, a maximum of 15 feet in length and a parallel
blade, grounding-type attachment plug rated 10 amperes, 125 volts.
For units intended to be operated at 230 volts (U.S. use): Use a UL-listed and CSA-certified cord set
consisting of a minimum 18 AWG, Type SVT or SJT, three-conductor cord, a maximum of 15 feet in length
and a tandem blade, grounding-type attachment plug rated 10 amperes, 250 volts.
For units intended to be operated at 230 volts (outside the U.S.): Use a cord set with a grounding-type
attachment plug. The cord set should have the appropriate safety approvals for the country in which the
equipment will be installed.
Power cords provided by Lenovo for a specific country or region are usually available only in that country or
region.
For units intended to be operated in Germany: The power cords must be safety approved. For Germany, it
must be H05VV-F, 3G, 0.75 mm2, or better. For other countries, the suitable types must be used accordingly.
For units intended to be operated in Denmark: Use a cord set with a grounding-type attachment plug. The
cord set should have the appropriate safety approvals for the country in which the equipment will be
installed.
For units intended to be operated in Norway, Sweden, Finland: Use a cord set with a two-prong attachment
plug. The cord set should have the appropriate safety approvals for the country in which the equipment will
be installed.
If you intend to use your PC in a country or region that is different from your ordering location, please
purchase an additional Lenovo power cord for the country or region where the PC will be used. Refer to the
power cord guide provided in our Web site, https://pcsupport.lenovo.com, for details. Some countries and
regions support multiple voltages, so make sure you order the appropriate power cord for the intended
voltage.
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.
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Plugs and outlets
DANGER
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 attached
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.
Power supply statement
Never remove the cover on a power supply or any part that has the following label attached.
Hazardous voltage, current, and energy levels are present inside any component that has this label attached.
There are no serviceable parts inside these components. If you suspect a problem with one of these parts,
contact a service technician.
External devices
CAUTION:
Do not connect or disconnect any external device cables other than Universal Serial Bus (USB) and
1394 cables while the computer power is on; otherwise, you might damage your computer. To avoid
possible damage to attached devices, wait at least five seconds after the computer is shut down to
disconnect external devices.
Appendix A. Important safety information 109
Lithium coin-cell battery notice
DANGER
Danger of explosion if battery is incorrectly replaced.
If the coin-cell battery is not a CRU, do not attempt to replace the coin-cell battery. Replacement of
the battery must be done by a Lenovo-authorized repair facility or technician.
The Lenovo-authorized repair facilities or technicians recycle Lenovo batteries according to local
laws and regulations.
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/.
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
110 P620 User Guide
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.
Electrical current safety information
DANGER
Electric current from power, telephone, and communication cables is hazardous.
To avoid a shock hazard:
• Do not use your computer during a lightning storm.
• Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration
of this product during an electrical storm.
• Connect all power cords to a properly wired and grounded electrical outlet.
• Connect properly wired outlets to any equipment that will be attached to this product.
• Whenever possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural damage.
• Disconnect the attached power cords, battery, and all the cables before you open the device
covers, unless instructed otherwise in the installation and configuration procedures.
• Do not use your computer until all internal parts enclosures are fastened into place. Never use
the computer when internal parts and circuits are exposed.
Appendix A. Important safety information 111
DANGER
Connect and disconnect cables as described in the following procedures when installing, moving,
or opening covers on this product or attached devices.
To connect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlets.
5. Turn devices ON.
To disconnect:
1. Turn everything OFF.
2. First, remove power cords from outlets.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
The power cord must be disconnected from the wall outlet or receptacle before installing all other electrical
cables connected to the computer.
The power cord may be reconnected to the wall outlet or receptacle only after all other electrical cables have
been connected to the computer.
DANGER
During electrical storms, do not perform any replacement and do not connect the telephone cable
to or disconnect it from the telephone outlet on the wall.
Laser safety information
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 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.
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Liquid crystal display (LCD) notice
DANGER
To avoid shock hazards:
• Do not remove the covers.
• Do not operate this product unless the stand is attached.
• Do not connect or disconnect this product during an electrical storm.
• The power cord plug must be connected to a properly wired and grounded power outlet.
• Any equipment to which this product will be attached must also be connected to properly wired
and grounded power outlets.
• To isolate the monitor from the electrical supply, you must remove the plug from the power
outlet. The power outlet should be easily accessible.
Handling:
• If your monitor weighs more than 18 kg (39.68 lb), we recommend that it be moved or lifted by two people.
Product disposal (TFT monitors):
• The fluorescent lamp in the liquid crystal display contains mercury; dispose according to local, state, or
federal laws.
Battery warnings:
• Risk of explosion if battery is replaced by an incorrect type.
• Dispose of used batteries according to the instructions.
Use 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.
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
Appendix A. Important safety information 113
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 packaging, 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.
Choking hazard notice
CHOKING HAZARD – Product contains small parts.
Keep away from children under three years.
Plastic bag notice
DANGER
Plastic bags can be dangerous. Keep plastic bags away from babies and children to avoid danger of
suffocation.
Glass parts notice
CAUTION:
Some parts of your product may be made of glass. This glass could break if the product is dropped on
a hard surface or receives a substantial impact. If glass breaks, do not touch or attempt to remove it.
Stop using your product until the glass is replaced by trained service personnel.
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.
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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.
CAUTION:
Bright Light, possible skin or eye damage. Disconnect power before servicing.
CAUTION:
Infrared Light, possible skin or eye damage. Disconnect power before servicing.
Eye comfort
The property of the display in combination with following notes result in reduced eye fatigue and increased
comfort.
For tips on how to minimize visual fatigue, please go to https://www.lenovo.com/us/en/safecomp/ to visit
“Minimizing Visual Fatigue”.
Tip-over hazard prevention notice
The computer may cause harm to children if it is not located in an appropriate place. Follow the tips below to
protect children from harm caused by the computer tipping over:
• Place the computers or monitors on sturdy furniture with a low base or furniture that has been anchored.
Push the computers or monitors as far from the edge of the furniture as possible.
• Keep remote controls, toys, and other items that might attract children away from the computers or
monitors
• Keep the computer or monitor cables out of the reach of children.
• Supervise children in rooms where these safety tips have not been followed.
CAUTION:
Some parts of your product may be made of glass. This glass could break if the product is dropped on
a hard surface or receives a substantial impact. If glass breaks, do not touch it or attempt to remove
it. Stop using your product until the glass is replaced by trained service personnel.
Appendix A. Important safety information 115
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 packaging 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 packaging 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 packaging 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.
Operating environment
Maximum altitude (without pressurization)
• 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)
Temperature
• Operating: From 10°C (50°F) to 35°C (95°F)
• Storage in original shipping packaging: From -40°C (-40°F) to 60°C (140°F)
• Storage without packaging: From -10°C (14°F) to 60°C (140°F)
Note: If your computer is stored or transported in temperatures less than 10°C (50°F), allow the computer to
rise slowly to an optimal operating temperature before use. This process might take up to two hours. Using
the computer in a lower operating temperature might result in irreparable damage to your computer.
Relative humidity
• Operating: 10%-80% (non-condensing)
• Storage: 10%–90% (non-condensing)
Cleaning and maintenance
With appropriate care and maintenance, your computer will serve you reliably. The following topics offer
information to help you keep your computer working with best performance.
Basic maintenance tips
Here are some basic points about keeping your computer functioning properly:
• Keep the computer in a clean, dry environment. Ensure that the computer rests on a flat, steady surface.
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• Do not cover any of air vents. These air vents provide airflow to keep the computer from overheating.
• 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.
• Keep food and drinks away from all parts of the 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.
• Keep the computer software, device drivers, and operating system up-to-date.
• Empty your recycle bin on a regular basis.
• Clean out your Inbox, Sent Items, and Deleted Items folders in your e-mail application on a regular basis.
• Clean up files and free up storage drive space and memory space occasionally to prevent performance
problems.
• 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 determine the cause of a problem.
• Back up your data on the storage drive regularly. You can restore the storage drive from a backup.
• Create a recovery medium as early as possible. You can use the recovery medium to recover your
operating system even if Windows fails to start up.
• Get the most up-to-date operating system update patches, software programs, and device drivers.
Maintenance tips about moving the computer
Before moving the computer, take the following precautions:
1. Back up your data on the storage drive.
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.
When you move the 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 currently using, contact the
Lenovo Customer Support Center to purchase either an electrical plug adapter or a new power cord.
Clean your computer
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.
Clean the computer surface: Wipe it with a lint-free cloth dampened in mild soap and water. Avoid applying
liquids directly to the surface.
Appendix A. Important safety information 117
Clean the keyboard: Wipe the keys one by one with a lint-free cloth dampened in mild soap and water. If
you wipe several keys at a time, the cloth might hook onto an adjacent key and possibly damage it. Avoid
spraying cleaner directly onto the keyboard. To remove any crumbs or dust from beneath the keys, you can
use a camera blower with a brush or use cool air from a hair dryer.
Clean the computer screen: Scratches, oil, dust, chemicals, and ultraviolet light can affect the performance
of your computer screen. Use a dry, soft lint-free cloth to wipe the screen gently. If you see a scratchlike
mark on your screen, it might be a stain. Wipe or dust the stain gently with a soft, dry cloth. If the stain
remains, moisten a soft, lint-free cloth with water or eyeglass cleaner, but do not apply liquids directly to your
computer screen. Ensure that the computer screen is dry before closing it.
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Appendix B. System memory speed
The AMD Threadripper Pro microprocessor families compatible with this ThinkStation computer feature an
integrated memory controller, which provides the microprocessor with direct access to the system memory.
Because of this design, the system memory speed will be determined by a number of factors, including the
microprocessor model and the type, speed, size (capacity), and number of DIMMs installed.
Notes:
• The actual system memory speed of the memory modules varies depending on the microprocessor
model. For example, your computer comes with 2666 MT/s memory modules, but microprocessor only
supports up to 2400 MT/s memory modules. Then the system memory speed will be no faster than 2400
MT/s.
• The microprocessor models supported in your computer might vary. For a list of supported
microprocessor models, contact the Lenovo Customer Support Center.
© Copyright Lenovo 2020 119
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Appendix C. Accessibility and ergonomic information
This chapter provides information about accessibility and ergonomics.
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 computers to suit
their physical and cognitive needs.
To access Ease of Access Center:
1. Go to Control Panel and view by Category.
2. Click Ease of Access ➙ Ease of Access Center.
3. Choose the appropriate tool by following the on-screen instructions.
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 what is displayed on the screen aloud and describes events such as
error messages.
• On-Screen Keyboard
If you prefer to type or enter data into your computer using a mouse, joystick, or other pointing device
instead of a physical keyboard, you can use On-Screen Keyboard. On-Screen Keyboard displays a visual
© Copyright Lenovo 2020 121
keyboard with all the standard keys. You can select keys using the mouse or another pointing device, or
you can tap to select the keys if your computer supports multi-touch screen.
• 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 make the keyboard easier to type certain key combinations.
• Personalized mouse
Adjust mouse settings to make your mouse easier to use. For example, you can change the pointer
appearance and make your mouse easier to manage windows.
Speech Recognition
Speech Recognition enables you to control your computer by voice.
You can use verbal instructions to control the keyboard and mouse. With verbal instructions, you can start
programs, open menus, click objects on the screen, dictate text into documents, and write and send e-mails.
To use Speech Recognition:
1. Go to Control Panel and view by Category.
2. Click Ease of Access ➙ Speech Recognition.
3. Follow the on-screen instructions.
Screen-reader technologies
Screen-reader technologies are primarily focused on software program interfaces, help systems, and various
online documents. For additional information about screen readers, see the following:
• Use PDFs with screen readers:
https://www.adobe.com/accessibility.html?promoid=DJGVE
• Use the JAWS screen reader:
https://www.freedomscientific.com/Products/Blindness/JAWS
• Use the NVDA screen reader:
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:
1. Right-click an empty area of the desktop and then click Display settings ➙ Display.
2. Follow the on-screen instructions.
Note: Setting a 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:
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– Change the size of all the items on your screen.
1. Right-click an empty area of the desktop and then click Display settings ➙ Display.
2. Change the item size by following the on-screen instructions. 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.
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.
Ergonomic information
Good ergonomic practice is important to get the most from your personal computer and to avoid discomfort.
Arrange your workplace and the equipment you use to suit your individual needs and the kind of work that
you perform. In addition, use healthy work habits to maximize your performance and comfort when using
your computer.
Working in the virtual office might mean adapting to frequent changes in your environment. Adapting to the
surrounding light sources, active seating, and the placement of your computer hardware, can help you
improve your performance and achieve greater comfort.
This example shows someone in a conventional setting. Even when not in such a setting, you can follow
many of these tips. Develop good habits, and they will serve you well.
General posture: 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.
Appendix C. Accessibility and ergonomic information 123
Display: Position the display to maintain a comfortable viewing distance of 510 mm to 760 mm (20 inches to
30 inches). Avoid glare or reflections on the display from overhead lighting or outside sources of light. Keep
the display screen clean and set the brightness to levels that enable you to see the screen clearly. Press the
brightness control keys to adjust display brightness.
Head position: Keep your head and neck in a comfortable and neutral (vertical, or upright) position.
Chair: Use a chair that gives you good back support and seat height adjustment. Use chair adjustments to
best suit your comfort posture.
Arm and hand position: If available,