Lenovo ThinkCentre M820z User Guide and Hardware Maintenance Manual [en, es, sr, zh]

M820z User Guide and Hardware Maintenance Manual

Energy Star Machine Types: 10SC, 10SD, 10Y7, and 10Y8

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 57.

Third Edition (August 2019)

LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS35F-05925.

Contents

Chapter 1. Overview. . . . . . . . . . . 1

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

Rear view . . . . . . . . . . . . . . . . . . 3

System board . . . . . . . . . . . . . . . . 4

Machine type and model label . . . . . . . . . . 6

Adjusting the integrated camera module . . . . . . 6

Adjusting the computer stand . . . . . . . . . . 6

Chapter 2. Specifications . . . . . . . . 9

Chapter 3. Computer locks . . . . . . 11

Chapter 4. Replacing hardware . . . . 13

Before replacing hardware . . . . . . . . . . 13

Knowing FRUs (including CRUs) . . . . . . . . 13

Locating FRUs (including CRUs) . . . . . . . . 14

Replacing the computer stand . . . . . . . . . 16

Removing the computer cover . . . . . . . . . 18

Replacing the storage drive . . . . . . . . . . 19

Replacing the optical drive . . . . . . . . . . 21

Replacing the optical drive and storage drive

cables . . . . . . . . . . . . . . . . . . 24

Replacing the side I/O bezel . . . . . . . . . . 25

Replacing the system board shield . . . . . . . 26

Replacing the VESA mount bracket . . . . . . . 27

Replacing the power supply assembly . . . . . . 28

Replacing the cover presence switch . . . . . . 30

Replacing the system fan . . . . . . . . . . . 31

Replacing the heat sink . . . . . . . . . . . . 32

Replacing the microprocessor . . . . . . . . . 34

Replacing the Wi-Fi card . . . . . . . . . . . 38

Replacing the serial connector module . . . . . . 39

Replacing the M.2 solid-state drive . . . . . . . 40

Replacing a memory module. . . . . . . . . . 43

Replacing the coin-cell battery . . . . . . . . . 45

Replacing the card reader . . . . . . . . . . . 47

Replacing the system board . . . . . . . . . . 48

Replacing the integrated camera module . . . . . 49

Replacing the internal speakers . . . . . . . . 52

Replacing the Wi-Fi antennas . . . . . . . . . 53

Replacing the LCD panel . . . . . . . . . . . 55

Completing the parts replacement . . . . . . . 55

Appendix A. Notices. . . . . . . . . . 57

Appendix B. Trademarks . . . . . . . 59

ii M820z 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 Integrated microphones (2) (optional) 2 Integrated camera activity indicator (optional)

3 Integrated camera shield control slider (optional) 4 Integrated camera (optional)

5 Card reader slot (optional) 6 Always On USB 3.1 Gen 2 connector (for rapid

charge)

7 USB-C™ connector 8 Headset connector (also known as combo audio

jack)

9 Microphone mute/unmute control

11 Power indicator

13 Microphone mute/unmute indicator 14 Internal speakers (2)

15 Screen

1 Integrated microphones

10 Power button

12 Storage drive activity indicator

Used to record sounds or use speech-recognition software without using a microphone.

2 Integrated camera activity indicator

When the indicator is on, the camera is in use.

3 Integrated camera shield control slider

Used to cover the camera lens.

4 Integrated camera

Used to take pictures or hold a video conference.

5 Card reader slot

Used to read data from a supported memory card.

6 Always On USB 3.1 Gen 2 connector

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. With the ac power adapter connected, you can charge the automatically detected device even when the computer is in hibernation mode or turned off.

7 USB-C connector

Use the connector to transfer data (USB 3.1 Gen 1, 5.0Gbps) or charge your device (5V/3A).

8 Headset connector

Used to connect a headset or headphones to your computer.

9 Microphone mute/unmute control

Used to mute or unmute the integrated microphones in the computer mode.

10 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.

11 Power indicator

This indicator is on when the computer is on.

12 Storage drive activity indicator

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

13 Microphone mute/unmute indicator

This indicator is on when the microphones are muted.

14 Internal speaker

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

M820z User Guide and Hardware Maintenance Manual

15 Screen

Depending on the computer model, your computer screen might support the multi-touch feature. This feature enables you to use up to ten fingers to interact with the computer.

Rear view

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

Figure 2. Rear view

1 Optical drive activity indicator (optional) 2 Optical drive eject/close button (optional)

3 Power cord connector 4 Ethernet connector

5 USB 3.1 Gen 1 connector (supporting the smart

6 USB 3.1 Gen 1 connectors (3)

power on feature)

7 DisplayPort

9 Security-lock slot 10 VESA threaded holes (screws: M4 x 8 mm x 4 pcs)

1 Optical drive activity indicator

1.2 out connector

8 Serial connector (optional)

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

2 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.

3 Power cord connector

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

Chapter 1. Overview 3

4 Ethernet connector

Used to connect an Ethernet cable for network access.

5 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. The 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 Important Product Information Guide.

6 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.

7 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.

8 Serial connector

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

9 Security-lock slot

Used to secure a Kensington-style cable lock.

10 VESA threaded holes

Used to connect the matched VESA mount with the matched screws when you install the computer on a wall.

System board

Note: See “Front view” and “Rear view” for additional component descriptions.

M820z User Guide and Hardware Maintenance Manual

Figure 3. System board

1 Integrated camera module connector 2 Microprocessor socket

3 Memory slot (DIMM1) 4 Memory slot (DIMM2)

5 M.2 solid-state drive slot

7 LCD LVDS connector

9 SATA power connector (connecting to the storage

6 System fan connector

8 Touch board connector

10 Power supply assembly connector

drive and optical drive)

11 Cover presence switch connector (intrusion switch

12 Coin-cell battery

connector)

13 SATA connector (connecting to the optical drive) 14 SATA connector (connecting to the storage drive)

15 Serial (COM1) connector

17 LCD power connector

19 Card reader connector 20 PCH

16 M.2 Wi-Fi card slot

18 Internal speaker connector

Chapter 1. Overview 5

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 computer as shown.

Figure 4. Machine type and model label

Adjusting the integrated camera module

Note: The integrated camera module is optional.

Adjusting the computer stand

Note: The computer stand is optional.

M820z User Guide and Hardware Maintenance Manual

Full-function monitor stand

Figure 5. Tilting the screen forward and back

Figure 6. Adjusting the height of the screen

Figure 7. Turning the screen to the left and right

Chapter 1. Overview 7

UltraFlex III Stand

Figure 8. Tilting the screen forward and back

Figure 9. Pressing the screen downward after tilting it back

Figure 10. Turning the screen to the left and right

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Chapter 2. Specifications

Power supply

150-watt automatic voltage-sensing power supply

Storage drives

• 2.5-inch storage drive (optional)

• M.2 solid-state drive (optional)

Video features

DisplayPort 1.2 out connector

Audio features

• Headset connector

• Integrated microphones (optional)

• Internal speakers

Input/Output (I/O) features

• Card reader slot (optional)

• DisplayPort 1.2 out connector

• Ethernet connector

• Headset connector

• Serial connector

• USB connectors

Expansion

• Card reader

• Memory slots

• M.2 solid-state drive slot

• Optical drive (optional)

• Storage drive bay

Network features

• Ethernet LAN

• Wireless LAN (optional)

• Bluetooth (optional)

Physical dimensions (without the computer stand)

• Width: 491.1 mm (19.3 inches)

• Height: 342.4 mm (13.5 inches)

• Depth: 49.3 mm (1.9 inches)

Weight (with the computer stand) (without the package)

Maximum configuration as shipped: 7.9 kg (21.7 lb)

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)

3.1 Gen 1

3.1 Gen 2

3.2 20

10 M820z User Guide and Hardware Maintenance Manual

Chapter 3. Computer locks

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 11. Attaching a Kensington-style cable lock

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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

14 M820z User Guide and Hardware Maintenance Manual

Figure 12. Locating FRUs (including CRUs)

Self-service CRUs Optional-service CRUs Non-CRUs

1 UltraFlex III Stand 4 System board shield 5 Optical drive and storage drive

cables

2 Full-function monitor stand

3 Computer cover 10 Optical drive bezel 7 Optical drive holder

8 Optical drive 6 VESA mount bracket

13 Storage drive bracket

14 Storage drive 32 Coin-cell battery

25 M.2 solid-state drive 9 Power supply assembly

11 Integrated camera and

microphone module

38 Keyboard 33 Memory module 12 Integrated camera and

microphone module cover

Chapter 4. Replacing hardware 15

Self-service CRUs Optional-service CRUs Non-CRUs

39 Mouse

40 Power cord

37 Side I/O bezel

15 Back frame

16 Chassis

17 LCD panel

18 Backlight cable

19 Touch cable

20 Wi-Fi antennas (2)

21 LVDS cable

22 Front decorative cover

23 Internal speakers (2)

24 Thermal pads(2)

26 Serial connector module

27 Wi-Fi card shield

28 Wi-Fi card

29 System board

30 Card reader

31 Microprocessor

34 System fan

35 Heat sink

36 System board shielding fence

Replacing the computer stand

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.

2. Disconnect all power cords from electrical outlets and disconnect all cables from the computer.

3. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay it down so that the screen is against the surface and the computer cover is facing up.

4. Depending on your computer model, refer to one of the following to replace the computer stand.

• Full-function monitor stand

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