Lenovo M920t User Guide And Hardware Maintenance Manual (English) Think Centre Desktop (Think Centre) Ughmm En

2018-06-28

User Manual: Lenovo (English) User Guide and Hardware Maintenance Manual - ThinkCentre M920t M920t Desktop (ThinkCentre) ThinkCentre M920t Tower Form Factor systems.

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M920t User Guide and Hardware Maintenance
Manual

Energy Star Machine Types: 10SF, 10SG, 10SH, 10TM, 10U0 and
10U1

Note: Before using this information and the product it supports, be sure to read and understand the
Important Product Information Guide and Appendix A “Notices” on page 71.

First Edition (June 2018)
© Copyright Lenovo 2018.
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. GS35F-05925.

Contents
Chapter 1. Overview . . . . . . . . . . . 1
Front view . . . . . . . .
Rear view . . . . . . . .
System board . . . . . .
Machine type and model label

.
.
.
.

1
3
5
6

Chapter 2. Specifications . . . . . . . . 7
Chapter 3. Computer locks . . . . . . . 9
Enabling or disabling the E-lock . . .
Locking the computer cover . . . . .
Attaching a Kensington-style cable lock
Attaching a cable lock . . . . . . .

.
.
.
.

. . 9
. 10
. 11
. 12

Chapter 4. Replacing hardware . . . . 13
Before replacing hardware . . . . . . .
Knowing FRUs (including CRUs) . . . . .
Locating FRUs (including CRUs) . . . . .
Replacing the power cord . . . . . . . .
Removing the computer cover . . . . . .
Replacing the front bezel . . . . . . . .
Pivoting the drive bay assembly upward and
downward . . . . . . . . . . . . . .
Replacing the computer handle . . . . .
Replacing the optical drive . . . . . . .
Replacing the power button . . . . . . .
Replacing the card reader . . . . . . . .

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13
13
14
16
17
18

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20
22
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24

Replacing the front I/O bracket . . . . .
Replacing the front fan . . . . . . . .
Replacing the illuminated red dot . . . .
Replacing the thermal sensor . . . . .
Replacing the internal speaker . . . . .
Replacing the storage drive . . . . . .
Replacing the memory module . . . . .
Replacing the coin-cell battery . . . . .
Replacing a PCI Express card . . . . .
Replacing the M.2 storage drive . . . .
Replacing the M.2 storage drive bracket .
Replacing the Wi-Fi card . . . . . . .
Replacing the Wi-Fi antennas . . . . .
Replacing the heat sink and fan assembly
Replacing the power supply assembly . .
Replacing the microprocessor . . . . .
Replacing the E-lock . . . . . . . . .
Replacing the cover presence switch . .
Replacing the rear fan . . . . . . . .
Replacing the system board . . . . . .
Completing the parts replacement . . .

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26
27
28
29
30
31
43
44
46
47
50
51
55
58
59
61
63
64
65
67
68

Appendix A. Notices . . . . . . . . . . 71
Appendix B. Trademarks . . . . . . . 73

M920t User Guide and Hardware Maintenance Manual

Chapter 1. Overview
This chapter provides basic information to help you get familiar with your computer.

Front view
Note: Your computer model might look slightly different from the illustration.

Figure 1. Front view

1 Optical drive eject/close button (optional)

2 Optical drive status indicator (optional)

3 Front-access storage enclosure

4 Card reader slot (optional)

5 USB 3.1 Gen 1 Type-C connector

6 Power button

7 Power indicator

8 Storage drive activity indicator

9 Microphone connector

10 Headset connector

11 USB 3.1 Gen 1 connectors (2)

12 USB 3.1 Gen 2 connectors (2)

13 Illuminated red dot

14 Internal speaker

Optical drive eject/close button

Used to eject the tray of the optical drive. After you insert a disc into the tray, press the eject/close button to
close the tray.
2

Optical drive status indicator

This indicator is on when the optical drive is in use.
3

Front-access storage enclosure

Used to provide access to the hot-swappable storage drive.
4

Card reader slot

Used to read data from a supported memory card.
5

USB 3.1 Gen 1 Type-C connector

Used to connect a USB-compatible device, such as a USB keyboard, mouse, scanner, printer, or personal
digital assistant (PDA). For optimal data transfer, connect a USB 3.1 Gen 1 device to a USB 3.1 Gen 1
connector instead of a USB 2.0 connector.
6

Power button

Used to turn on your computer. When you cannot shut down the computer from the operating system, press
and hold the power button for four or more seconds to turn off the computer.
7

Power indicator

This indicator is on when the computer is on.
8

Storage drive activity indicator

This indicator is on when the storage drive is in use.
9

Microphone connector

Used to connect a microphone to your computer. You can use the microphone to record sounds or interact
with the computer using speech-recognition software.
10

Headset connector

Used to connect headset to your computer.
11

USB 3.1 Gen 1 connectors

Used to connect a USB-compatible device. For optimal data transfer, connect a USB 3.1 Gen 1 device to a
USB 3.1 Gen 2 or USB 3.1 Gen 1 connector instead of a USB 2.0 connector.
12

USB 3.1 Gen 2 connectors

Used to connect a USB-compatible device. For optimal data transfer, connect a USB 3.1 Gen 2 device to a
USB 3.1 Gen 2 connector instead of a USB 3.1 Gen 1 or USB 2.0 connector.
13

Illuminated red dot

This indicator is on when the computer is on.

M920t User Guide and Hardware Maintenance Manual

Internal speaker

Used to listen to the sounds from your computer without using a headset or headphones.

Rear view
Note: Your computer model might look slightly different from the illustration.

Figure 2. Rear view
1 Audio line-out connector

2 VGA-out connector

3 DisplayPort® 1.2 out connector

4 USB 3.1 Gen 1 connector

5 USB 3.1 Gen 1 connectors (3)

6 Power cord connector

7 Serial connector

8 PS/2 mouse connector (optional)

9 PS/2 keyboard connector (optional)

10 Ethernet connector

11 Rear Wi-Fi antenna cover

12 Serial connector (optional)

13 Padlock loop

14 Smart cable clip slots (2)

15 PCI-Express card area (different cards provide
different connectors)

16 Security-lock slot

Audio line-out connector

Used to 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,

Chapter 1. Overview

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 connector or headphone connector for earphones, headphones, or a headset. The
headphone connector does not support headset microphones.
2

VGA-out connector

Used to send video signals from the computer to another video device, such as a monitor.
3

DisplayPort 1.2 out connector

Used to send audio and video signals from the computer to another audio or video device, such as a highperformance monitor.
4

USB 3.1 Gen 1 connector

Used to connect a USB-compatible device. For optimal data transfer, connect a USB 3.1 Gen 1 device to a
USB 3.1 Gen 2 or USB 3.1 Gen 1 connector instead of a USB 2.0 connector. This connector supports the
smart power on feature that enables you to turn on the computer or wake it up from S4 hibernation mode by
pressing Alt+P on the keyboard. You can enable or disable the smart power on feature from the Setup Utility
program. For detailed information, see the Important Product Information Guide.
5

USB 3.1 Gen 1 connectors

Used to connect a USB-compatible device. For optimal data transfer, connect a USB 3.1 Gen 1 device to a
USB 3.1 Gen 2 or USB 3.1 Gen 1 connector instead of a USB 2.0 connector.
6

Power cord connector

Used to connect the power cord to your computer for power supply.
7

Serial connector

Used to connect an external modem, a serial printer, or other devices that use a serial connector.
8

PS/2 mouse connector

Used to connect a mouse, a trackball, or other pointing devices that use a PS/2 mouse connector.
9

PS/2 keyboard connector

Used to connect a keyboard that uses a Personal System/2 (PS/2) keyboard connector.
10

Ethernet connector

Used to connect an Ethernet cable for network access.
11

Rear Wi-Fi antenna cover

Used to protect the rear Wi-Fi antenna that is optional.
12

Serial connector

Used to connect an external modem, a serial printer, or other devices that use a serial connector.

M920t User Guide and Hardware Maintenance Manual

Padlock loop

Used to secure a padlock.
14

Smart cable clip slots

Used to secure a smart cable clip.
15

PCI-Express card area

To improve the operating performance of the computer, you can connect PCI-Express cards into this area.
Depending on the computer model, the connectors in this area vary.
16

Security-lock slot

Used to secure a Kensington-style cable lock.

System board
Note: See “Front view” on page 1 and “Rear view” on page 3 for additional component descriptions.

Figure 3. System board
1 4-pin power connector

2 Microprocessor fan connector

3 Memory slot (DIMM1)

4 Memory slot (DIMM2)

5 Memory slot (DIMM3)

6 Memory slot (DIMM4)

7 Power button board connector

8 Internal speaker connector

9 10-pin power connector

10 SATA power connector

Chapter 1. Overview

11 SATA power connector

12 Auxiliary fan connector

13 SATA 3.0 connector

14 SATA 3.0 connector

15 SATA 3.0 connector

16 Clear CMOS jumper

17 SATA 3.0 connector

18 M.2 storage drive slot

19 M.2 Wi-Fi card slot

20 Thermal sensor connector

21 Illuminated red dot connector

22 Front USB 2.0 connector

23 Front USB 2.0 connector

24 Serial connector (optional)

25 Thunderbolt connector

26 PCI Express card slot (physical link width x16;
negotiable link width x4, x1)

27 PCI Express x1 card slot

28 PCI Express x16 graphics card slot

29 E-lock connector

30 System fan connector

31 Cover presence switch

32 Coin-cell battery

33 Microprocessor socket

34 PS/2 keyboard and mouse connector

Machine type and model label
The machine type and model label identifies the computer. When you contact Lenovo for help, the machine
type and model information helps support technicians to identify the computer and provide faster service.
The machine type and model label is attached on the side of the computer as shown.

Figure 4. Machine type and model label

M920t User Guide and Hardware Maintenance Manual

Chapter 2. Specifications
Power supply
• 180 watt automatic voltage-sensing power supply
• 250 watt automatic voltage-sensing power supply
• 400 watt automatic voltage-sensing power supply
Storage drives
Up to four SATA storage drives (including one hot-swap storage drive) and one M.2 storage drive
Video features
• The integrated graphics card supports the following:
– DisplayPort-out connector
– VGA-out connector
• The optional discrete graphics card provides an enhanced video experience and extended capabilities.
Audio features
• The integrated audio card supports the following:
– Audio line-out connector
– Headset connector
– Internal speaker
– Microphone connector
• The optional discrete audio card provides an enhanced audio experience and extended capabilities.
Input/Output (I/O) features
• Audio connectors (audio line-out connector, headset connector, and microphone connector)
• Card reader slot (optional)
• Display connectors (DisplayPort-out connector and VGA-out connector)
• Ethernet connector
• PS/2 keyboard connector (optional)
• PS/2 mouse connector (optional)
• Serial connector
• USB connectors
Expansion
• Card reader (optional)
• Memory slot
• Optical drive (optional)
• PCI Express card slot (physical link width x16; negotiable link width x4, x1)
• PCI Express x1 card slot
• PCI Express x16 graphics card slot
• Storage drive bay

Network features
• Ethernet LAN
• Wireless LAN (optional)
• Bluetooth (optional)
Physical dimensions
• Width: 165.0 mm (6.5 inches)
• Height: 410.3 mm (16.2 inches)
• Depth: 321.4 mm (12.7 inches)
Weight (without the package)
Maximum configuration as shipped: 10.0 kg (22.1 lb)

M920t User Guide and Hardware Maintenance Manual

Chapter 3. Computer locks
This chapter provides instructions on how to lock your computer with the locking devices to keep your
computer safe.

Enabling or disabling the E-lock
Your computer may have a security lock solution installed to protect the computer from unauthorized
tampering of the internal components. Using the E-Lock, you can mechanically lock or unlock the computer
cover.
To enable or disable the E-Lock, do the following:
1. Turn on or restart the computer.
2. Before Windows starts up, repeatedly press and release the F1 or Fn+F1 key until the Setup Utility
program opens.
3. Click Security ➙ Electronic Lock to enable or disable the E-lock.
4. Press F10 or Fn+F10 to save the changes and reboot the computer.
Note: Changes do not take effect until the setting is saved and the system is rebooted.

Figure 5. Enabling or disabling the E-lock

Locking the computer cover
Locking the computer cover helps prevent unauthorized access to the inside of your computer. Your
computer features a padlock loop so that the computer cover cannot be removed when a padlock is
installed.

Figure 6. Locking the computer cover

M920t User Guide and Hardware Maintenance Manual

Attaching a Kensington-style cable lock
You can use a Kensington-style cable lock to secure your computer to a desk, table, or other nonpermanent
fixture. The cable lock connects to the security-lock slot at the rear of your computer. Depending on the type
selected, the cable lock can be operated with a key or combination. The cable lock also locks the buttons
used to open the computer cover. This is the same type of lock used with many notebook computers. You
can order such a cable lock directly from Lenovo by searching for Kensington at:
http://www.lenovo.com/support

Figure 7. Attaching a Kensington-style cable lock

Chapter 3. Computer locks

Attaching a cable lock
A cable lock can be used to secure devices, such as the keyboard and the mouse, by locking the device
cables to the computer. The cable lock connects to the cable-lock slots on the rear of the computer. To
install a cable lock, do the following:
1. Insert the clip 1 into the cable-lock slot 4 .
2. Pull the cables you want to lock through the dents in the cable lock.
3. Press the clip 2 into the cable-lock slot 3 until it snaps into position.

Figure 8. Attaching a cable lock

M920t User Guide and Hardware Maintenance Manual

Chapter 4. Replacing hardware
This chapter provides instructions on how to replace hardware for your computer.

Before replacing hardware
Attention: Do not open your computer or attempt any repairs before reading this section and the Important
Product Information Guide.
Notes before replacing hardware
• Use computer components provided only by Lenovo.
• When installing or replacing an option, use the appropriate instructions explained in this manual along with
the instructions that come with the option.
• In most areas of the world, Lenovo requires the return of defective CRUs. Information about this will come
with the CRU or will come a few days after the CRU arrives.
Handling static-sensitive devices
Do not open the static-protective package containing the new part until the defective part has been removed
and you are ready to install the new part. Static electricity, although harmless to you, can seriously damage
computer components and options.
When you handle options and other computer components, take these precautions to avoid static-electricity
damage:
• Limit your movement. Movement can cause static electricity to build up around you.
• Always handle options and other computer components carefully. Handle PCI/PCIe cards, memory
modules, system boards, and microprocessors by the edges. Never touch any exposed circuitry.
• Prevent others from touching the options and other computer components.
• Touch the static-protective package containing the part to a metal expansion-slot cover or other
unpainted metal surface on the computer for at least two seconds. This reduces static electricity from the
package and your body before you install or replace a new part.
• When possible, remove the new part from the static-protective package, and install it directly in the
computer without setting the part down. When this is not possible, place the static-protective package on
a smooth, level surface and place the part on the package.
• Do not place the part on the computer cover or other metal surface.

Knowing FRUs (including CRUs)
• Field Replaceable Units (FRUs) are computer parts that a trained technician can upgrade or replace. FRUs
include all CRUs. For detailed FRU information, such as the FRU part numbers and supported computer
models, go to:
http://www.lenovo.com/serviceparts-lookup
• Customer Replaceable Units (CRUs) are computer parts that a user can upgrade or replace.
– Self-service CRUs: You can install self-service CRUs easily. These CRUs might be stand-alone,
latched, or secured by up to two screws. Examples of self-service CRUs include the keyboard, mouse,
any USB device. You are responsible for replacing all self-service CRUs.
– Optional-service CRUs: Handling optional-service CRUs requires some technical skills and simple tools
(such as a screwdriver). These CRUs are isolated parts within the computer. They are usually

concealed by an access panel that is secured by more than two screws. You must remove the screws
and panel to access the specific CRU. Optional-service CRUs can be removed and installed by users
or, during the warranty period, by a Lenovo service technician.
Before replacing FRUs
Before replacing any FRU, read the following:
• Only certified and trained personnel can service the computer.
• Before replacing an FRU, read the entire section about replacing the part.
• Be extremely careful during writing operations such as copying, saving, or formatting.
The sequence of the drives in the computer that you are servicing might have been altered. If you select
an incorrect drive, data or programs might be overwritten.
• Replace an FRU only with another FRU of the correct model.
When you replace an FRU, ensure that the model of the machine and the FRU part number are correct.
• An FRU should not be replaced because of a single, unreproducible failure.
Single failures can occur for a variety of reasons that have nothing to do with a hardware defect, such as
cosmic radiation, electrostatic discharge, or software errors. Consider replacing an FRU only when a
problem recurs. If you suspect that an FRU is defective, clear the error log and run the test again. If the
error does not recur, do not replace the FRU.
• Only replace a defective FRU.

Locating FRUs (including CRUs)
Notes:
• Some of the following components are optional.
• To replace a component that is not in the list below, contact a Lenovo service technician. For a list of
Lenovo Support phone numbers, go to:
http://www.lenovo.com/support/phone

M920t User Guide and Hardware Maintenance Manual

Figure 9. Locating FRUs (including CRUs)
Self-service CRUs

Optional-service CRUs

Non-CRUs

2 Coin-cell battery

29 Power supply assembly

1 Heat sink and fan assembly

4 Memory module

32 E-lock

3 Microprocessor

6 M.2 storage drive

36 Wi-Fi card shield

5 System board

8 Optical drive bracket

37 Wi-Fi card

7 Optical drive cable

9 Optical drive

11 Computer handle

Chapter 4. Replacing hardware

Self-service CRUs

Optional-service CRUs

Non-CRUs

10 Front access enclosure

13 Front I/O bracket

12 Front bezel

14 Card reader

19 Inner storage drive bracket

15 Power button

20 Outer storage drive bracket

16 Wi-Fi antennas and rear antenna
cover

21 2.5-inch or 3.5-inch storage drive

17 Thermal sensor

22 Storage drive converter

18 Illuminated red dot

23 Keyboard

26 Storage drive cable

24 Mouse

27 Front fan

25 Power cord

28 Internal speaker

30 PCI Express card

31 Chassis

34 M.2 storage drive bracket

33 Cover presence switch

38 Computer cover

35 Rear fan

Replacing the power cord
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Replace the power cord.

Figure 10. Removing the power cord

M920t User Guide and Hardware Maintenance Manual

Figure 11. Installing the power cord

Removing the computer cover
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
CAUTION:
Before you open the computer cover, turn off the computer and wait several minutes until the
computer is cool.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Unlock any locking device that secures the computer cover.

Chapter 4. Replacing hardware

3. Remove the computer cover.

Figure 12. Removing the computer cover

4. Complete the replacement. See “Completing the parts replacement” on page 68.

Replacing the front bezel
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Replace the front bezel.

M920t User Guide and Hardware Maintenance Manual

Figure 13. Removing the front bezel

Figure 14. Installing the front bezel

4. Complete the replacement. See “Completing the parts replacement” on page 68.

Pivoting the drive bay assembly upward and downward
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.

Chapter 4. Replacing hardware

Figure 15. Pivoting the drive bay assembly upward

Figure 16. Pivoting the drive bay assembly downward

5. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the computer handle
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.

M920t User Guide and Hardware Maintenance Manual

Figure 17. Removing the computer handle

Figure 18. Installing the computer handle

5. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Chapter 4. Replacing hardware

Replacing the optical drive
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Disconnect the signal cable and the power cable from the optical drive.
5. Replace the optical drive.
Slim optical drive

Figure 19. Removing the optical drive

Figure 20. Removing the optical drive bracket

M920t User Guide and Hardware Maintenance Manual

Figure 21. Installing the optical drive bracket

Figure 22. Installing the optical drive

6. Connect the signal cable and the power cable to the new optical drive.
7. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the power button
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Disconnect the power button cable from the system board.
6. Replace the power button.

Chapter 4. Replacing hardware

Figure 23. Removing the power button

Figure 24. Installing the power button

7. Connect the new power button cable to the system board.
8. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the card reader
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.

M920t User Guide and Hardware Maintenance Manual

4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Disconnect the card reader cable from the system board.
6. Replace the card reader.
CAUTION:
Touch only the edges of the card reader. Do not touch the card reader’s circuit board.

Figure 25. Removing the card reader

Figure 26. Installing the card reader

7. Connect the new card reader cable to the system board.
8. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Chapter 4. Replacing hardware

Replacing the front I/O bracket
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Replace the front I/O bracket.

Figure 27. Removing the front I/O bracket

Figure 28. Installing the front I/O bracket

M920t User Guide and Hardware Maintenance Manual

5. Connect the new front I/O bracket cable to the system board.
6. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the front fan
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Disconnect the front fan cable from the system board.
6. Replace the front fan.

Figure 29. Removing the front fan

Chapter 4. Replacing hardware

Figure 30. Installing the front fan

7. Connect the new front fan cable to the system board.
8. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the illuminated red dot
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Disconnect the illuminated red dot cable from the system board.
6. Replace the illuminated red dot.

M920t User Guide and Hardware Maintenance Manual

Figure 31. Removing the illuminated red dot

Figure 32. Installing the illuminated red dot

7. Connect the new illuminated red dot cable to the system board.
8. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the thermal sensor
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.

Chapter 4. Replacing hardware

4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Disconnect the thermal sensor cable from the system board.
6. Replace the thermal sensor.

Figure 33. Removing the thermal sensor

Figure 34. Installing the thermal sensor

7. Connect the new thermal sensor cable to the system board.
8. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the internal speaker
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.

M920t User Guide and Hardware Maintenance Manual

1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Disconnect the internal speaker cable from the system board.
6. Replace the internal speaker.

Figure 35. Removing the internal speaker

Figure 36. Installing the internal speaker

7. Connect the new internal speaker cable to the system board.
8. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the storage drive
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.

Chapter 4. Replacing hardware

Replacing the 3.5-inch storage drive in the primary or secondary drive bay
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. If you are replacing the 3.5-inch storage drive in the secondary drive bay, pivot the drive bay assembly
outward. See “Pivoting the drive bay assembly upward and downward” on page 19.
5. Disconnect the signal cable and the power cable from the storage drive.
6. Replace the 3.5-inch storage drive.
• 3.5-inch storage drive in the primary storage drive bay

Figure 37. Removing the inner storage drive bracket

Figure 38. Removing the storage drive

M920t User Guide and Hardware Maintenance Manual

Figure 39. Installing the storage drive

Figure 40. Installing the inner storage drive bracket

• 3.5-inch storage drive in the secondary storage drive bay

Chapter 4. Replacing hardware

Figure 41. Removing the outer storage drive bracket

Figure 42. Removing the inner storage drive bracket

Figure 43. Removing the storage drive

M920t User Guide and Hardware Maintenance Manual

Figure 44. Installing the storage drive

Figure 45. Installing the inner storage drive bracket

Chapter 4. Replacing hardware

Figure 46. Installing the outer storage drive bracket

7. Connect the signal cable and the power cable to the new 3.5-inch storage drive.
8. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.
Replacing the 3.5-inch storage drive in the front-access storage enclosure
1. Replace the 3.5-inch storage drive in the front-access storage enclosure.

Figure 47. Opening the front-access storage enclosure

M920t User Guide and Hardware Maintenance Manual

Figure 48. Removing the inner storage drive bracket

Figure 49. Removing the storage drive

Chapter 4. Replacing hardware

Figure 50. Installing the storage drive

Figure 51. Installing the inner storage drive bracket

M920t User Guide and Hardware Maintenance Manual

Figure 52. Installing the front-access storage enclosure

Replacing the 2.5-inch storage drive in the storage converter
1. Remove the storage converter with the 2.5-inch storage drive. See “Replacing the 3.5-inch storage drive
in the primary or secondary drive bay” or "Replacing the 3.5-inch storage drive in the front-access
storage enclosure".
2. Replace the 2.5-inch storage drive in the storage converter.

Figure 53. Removing the storage drive

Chapter 4. Replacing hardware

Figure 54. Installing the storage drive

3. Reinstall the storage converter with the 2.5-inch storage drive. See “Replacing the 3.5-inch storage drive
in the primary or secondary drive bay” or "Replacing the 3.5-inch storage drive in the front-access
storage enclosure".
Replacing the 2.5-inch storage drive in the tertiary drive bay
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. If you are replacing the 3.5-inch storage drive in the secondary drive bay, pivot the drive bay assembly
outward. See “Pivoting the drive bay assembly upward and downward” on page 19.
5. Disconnect the signal cable and the power cable from the storage drive.
6. Replace the 2.5-inch storage drive in the tertiary drive bay.

Figure 55. Removing the outer storage drive bracket

M920t User Guide and Hardware Maintenance Manual

Figure 56. Removing the inner storage drive bracket

Figure 57. Removing the storage drive

Chapter 4. Replacing hardware

Figure 58. Installing the storage drive

Figure 59. Installing the inner storage drive bracket

M920t User Guide and Hardware Maintenance Manual

Figure 60. Installing the outer storage drive bracket

7. Connect the signal cable and the power cable to the new 2.5-inch storage drive.
8. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the memory module
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
Ensure that you follow the order of installing memory modules shown in the following figure.

Figure 61. The order of installing memory modules

1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.

Chapter 4. Replacing hardware

2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Replace the memory module.

Figure 62. Removing the memory module

Figure 63. Installing the memory module

6. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the coin-cell battery
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
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, time, and configuration information (including
passwords) are lost. An error message is displayed when you turn on the computer.
To replace the coin-cell battery,
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.

M920t User Guide and Hardware Maintenance Manual

Figure 64. Removing the coin-cell battery

Figure 65. Removing the coin-cell battery

Figure 66. Installing the coin-cell battery

Figure 67. Installing the coin-cell battery

6. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.
To dispose of the coin-cell battery, refer to Lithium coin-cell battery notice in the Safety and Warranty Guide.

Chapter 4. Replacing hardware

Replacing a PCI Express card
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Replace a PCI Express card.

Figure 68. Removing a PCI Express card

Note: If the card is held in place by a retaining latch, press the latch 1 as shown to disengage the latch.
Then, gently remove the card from the slot.

M920t User Guide and Hardware Maintenance Manual

Figure 69. Installing a PCI Express card

6. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the M.2 storage drive
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Replace the M.2 storage drive.
• Type 1

Figure 70. Pulling out the plastic fastener

Chapter 4. Replacing hardware

Figure 71. Removing the optical drive retainer

Figure 72. Installing the optical drive retainer

Figure 73. Installing the optical drive

• Type 2

M920t User Guide and Hardware Maintenance Manual

Figure 74. Pulling out the plastic fastener

Figure 75. Removing the optical drive bracket

Figure 76. Installing the optical drive bracket

Chapter 4. Replacing hardware

Figure 77. Installing the optical drive

6. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the M.2 storage drive bracket
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Remove the M.2 storage drive.
6. Replace the M.2 storage drive bracket.

Figure 78. Removing the M.2 storage drive bracket

M920t User Guide and Hardware Maintenance Manual

Figure 79. Installing the M.2 storage drive bracket

7. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the Wi-Fi card
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Replace the Wi-Fi card.
• Type 1

Figure 80. Removing the Wi-Fi card shield

Chapter 4. Replacing hardware

Figure 81. Disconnecting the antennas

Figure 82. Removing the Wi-Fi card

Figure 83. Installing the Wi-Fi card

M920t User Guide and Hardware Maintenance Manual

Figure 84. Connecting the antennas

Figure 85. Installing the Wi-Fi card shield

• Type 2

Figure 86. Removing the Wi-Fi card shield

Chapter 4. Replacing hardware

Figure 87. Disconnecting the antennas

Figure 88. Removing the Wi-Fi card

Figure 89. Installing the Wi-Fi card

Figure 90. Connecting the antennas

M920t User Guide and Hardware Maintenance Manual

Figure 91. Installing the Wi-Fi card shield

6. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the Wi-Fi antennas
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Disconnect the antenna cables from the Wi-Fi card.
6. Replace the Wi-Fi antennas.
• Front Wi-Fi antenna

Chapter 4. Replacing hardware

Figure 92. Removing the Wi-Fi antenna

Figure 93. Installing the Wi-Fi antenna

• Rear Wi-Fi antenna

M920t User Guide and Hardware Maintenance Manual

Figure 94. Removing the rear Wi-Fi antenna cover

Figure 95. Removing the Wi-Fi antenna

Chapter 4. Replacing hardware

Figure 96. Installing the Wi-Fi antenna

Figure 97. Installing the rear Wi-Fi antenna cover

7. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the heat sink and fan assembly
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
CAUTION:
The heat sink and fan assembly might be very hot. Before you open the computer cover, turn off the
computer and wait several minutes until the computer is cool.

M920t User Guide and Hardware Maintenance Manual

1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Disconnect the heat sink and fan assembly cable from the system board.
6. Replace the heat sink and fan assembly.

Figure 98. Removing the heat sink and fan assembly

Figure 99. Installing the heat sink and fan assembly

7. Connect the new heat sink and fan assembly cable to the system board.
8. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the power supply assembly
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.

Chapter 4. Replacing hardware

Although there are no moving parts in your computer after the power cord has been disconnected, the
following warnings are required for your safety and proper Underwriters Laboratories (UL) certification.
CAUTION:
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.
1. Remove the computer cover. See “Removing the computer cover” on page 17.
2. Remove the front bezel. See “Replacing the front bezel” on page 18.
3. Remove the optical drive. See “Replacing the optical drive” on page 22.
4. Remove the storage drive bracket. See “Replacing the storage drive” on page 31.
5. Disconnect the power supply assembly cable from the system board.
6. Replace the power supply assembly.

Figure 100. Removing the power supply assembly

M920t User Guide and Hardware Maintenance Manual

Figure 101. Installing the power supply assembly

7. Connect the new power supply assembly cable to the system board.
8. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the microprocessor
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
CAUTION:
The heat sink and microprocessor might be very hot. Before you open the computer cover, turn off the
computer and wait several minutes until the computer is cool.
1. Remove the computer cover. See “Removing the computer cover” on page 17.
2. Remove the front bezel. See “Replacing the front bezel” on page 18.
3. Pivot the drive bay assembly outward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
4. Remove the heat sink and fan assembly. See “Replacing the heat sink and fan assembly” on page 58.
5. Disconnect all cables connected to the system board.
6. Replace the microprocessor.
Notes:
• Your microprocessor and socket might look different from the one illustrated.
• Touch only the edges of the microprocessor. Do not touch the gold contacts on the bottom.
• Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be
kept as clean as possible.

Chapter 4. Replacing hardware

Figure 102. Releasing the holder

Figure 103. Pivoting up the socket

Figure 104. Removing the microprocessor

Figure 105. Installing the microprocessor

M920t User Guide and Hardware Maintenance Manual

Figure 106. Pivoting the socket downward

Figure 107. Securing the holder

7. Reconnect all cables that were disconnected from the system board.
8. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the E-lock
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
Note: To remove the screws, you need a special tool (T15 star wrench).
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Disconnect the E-lock cable from the system board.
4. Replace the E-lock.

Chapter 4. Replacing hardware

Figure 108. Removing the E-lock

Figure 109. Installing the E-lock

5. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the cover presence switch
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Disconnect the cover presence switch cable from the system board.
6. Replace the cover presence switch.

M920t User Guide and Hardware Maintenance Manual

Figure 110. Removing the cover presence switch

Figure 111. Installing the cover presence switch

7. Connect the new cover presence switch cable to the system board.
8. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Replacing the rear fan
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.

Chapter 4. Replacing hardware

4. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
5. Disconnect the rear fan cable from the system board.
6. Replace the rear fan.

Figure 112. Removing the rear fan

Figure 113. Installing the rear fan

7. Connect the new rear fan cable to the system board.
8. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

M920t User Guide and Hardware Maintenance Manual

Replacing the system board
Attention: Do not open your computer or attempt any repairs before reading the Important Product
Information Guide.
1. Remove any media from the drives and turn off all connected devices and the computer. Disconnect all
power cords from electrical outlets and disconnect all cables from the computer.
2. Remove the computer cover. See “Removing the computer cover” on page 17.
3. Remove the front bezel. See “Replacing the front bezel” on page 18.
4. Remove the power button. See “Replacing the power button” on page 23.
5. Remove the front I/O bracket. See “Replacing the front I/O bracket” on page 26.
6. Pivot the drive bay assembly upward. See “Pivoting the drive bay assembly upward and downward” on
page 19.
7. Remove all memory modules. See “Replacing the memory module” on page 43.
8. Remove the heat sink and fan assembly. See “Replacing the heat sink and fan assembly” on page 58.
9. Remove the microprocessor. See “Replacing the microprocessor” on page 61.
10. Remove all PCI Express cards. See “Replacing a PCI Express card” on page 46.
11. Remove the Wi-Fi card. See “Replacing the Wi-Fi card” on page 51.
12. Remove the M.2 storage drive. See “Replacing the M.2 storage drive” on page 47.
13. Record the cable routing and cable connections, and then disconnect all cables from the system board.
See “System board” on page 5.

Chapter 4. Replacing hardware

14. Replace the system board.
Notes:
• The numbers in the following figure show the locations of the screws instead of the removing and
reinstalling order of the screws.
• Handle the system board carefully by its edges.

Figure 114. Removing the system board

15. Route all the cables that you disconnected from the failing system board, and then reconnect the cables
to the new system board. See “System board” on page 5.
16. Reinstall the removed parts. To complete the replacement, see “Completing the parts replacement” on
page 68.

Completing the parts replacement
After completing the installation or replacement for all parts, reinstall the computer cover and reconnect the
cables.
To reinstall the computer cover and reconnect the cables to your computer, do the following:
1. Ensure that all components have been reassembled correctly and that no tools or loose screws are left
inside your computer.
2. Ensure that the cables are routed correctly before reinstalling the computer cover. Keep cables clear of
the hinges and sides of the computer chassis to avoid interference when reinstalling the computer
cover.

M920t User Guide and Hardware Maintenance Manual

3. Reinstall the computer cover.

Figure 115. Reinstalling the computer cover

4. Place the computer in an upright position.
5. If a locking device is available, use it to lock the computer.
6. Reconnect the external cables and power cords to the corresponding connectors on the computer.

Chapter 4. Replacing hardware

M920t User Guide and Hardware Maintenance Manual

Appendix A. Notices
Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult
your local Lenovo representative for information on the products and services currently available in your
area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that
Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service
that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user's
responsibility to evaluate and verify the operation of any other product, program, or service.
Lenovo may have patents or pending patent applications covering subject matter described in this
document. The furnishing of this document does not give you any license to these patents. You can send
license inquiries, in writing, to:
Lenovo (United States), Inc.
1009 Think Place - Building One
Morrisville, NC 27560
U.S.A.
Attention: Lenovo Director of Licensing
LENOVO PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow
disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to
you.
This information could include technical inaccuracies or typographical errors. Changes are periodically made
to the information herein; these changes will be incorporated in new editions of the publication. Lenovo may
make improvements and/or changes in the products and/or the programs described in this publication at any
time without notice.
The products described in this document are not intended for use in implantation or other life support
applications where malfunction may result in injury or death to persons. The information contained in this
document does not affect or change Lenovo product specifications or warranties. Nothing in this document
shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo or
third parties. All information contained in this document was obtained in specific environments and is
presented as an illustration. The result obtained in other operating environments may vary.
Lenovo may use or distribute any of the information you supply in any way it believes appropriate without
incurring any obligation to you.
Any references in this publication to non-Lenovo Web sites are provided for convenience only and do not in
any manner serve as an endorsement of those Web sites. The materials at those Web sites are not part of the
materials for this Lenovo product, and use of those Web sites is at your own risk.
Any performance data contained herein was determined in a controlled environment. Therefore, the result
obtained in other operating environments may vary significantly. Some measurements may have been made
on development-level systems and there is no guarantee that these measurements will be the same on
generally available systems. Furthermore, some measurements may have been estimated through
extrapolation. Actual results may vary. Users of this document should verify the applicable data for their
specific environment.

M920t User Guide and Hardware Maintenance Manual

Appendix B. Trademarks
The following terms are trademarks of Lenovo in the United States, other countries, or both:
Lenovo
The Lenovo logo
DisplayPort and Mini DisplayPort are trademarks of the Video Electronics Standards Association.
The terms HDMI and HDMI High-Definition Multimedia Interface are trademarks or registered trademarks of
HDMI Licensing LLC in the United States and other countries.
Other company, product, or service names may be trademarks or service marks of others.

M920t User Guide and Hardware Maintenance Manual

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