Lenovo ThinkCentre M910z Owner's manual

M910z
User Guide and
Hardware Maintenance Manual
Machine Type (MT):
10NR, 10NS, 10NT, 10NU
Energy Star MT:
10NR, 10NS, 10NT, 10NU
Overview
Locations of indicators,
connectors, and
controls provided on
your computer
Replaceable parts
Locations of the
replaceable parts on
your computer
Specications
Specications of your
computer
Replacing FRUs
Replacing instructions
for eld-replaceable
units (FRUs) (for
technicians only)
Computer locks
Locking devices to keep
your computer safe
Replacing CRUs
Replacing instructions
for customer-
replaceable units
(CRUs)

2
Overview.........................................3
Front view....................................................................... 3
Rear view........................................................................ 5
System board................................................................7
Adjusting the monitor stand.......................................9
Adjusting the UltraFlex II Stand................................. 9
Machine type and model label.................................10
Computer locks ............................11
Attaching a Kensington-style cable lock ...............11
Specications...............................12
Replacing hardware......................13
Before replacing hardware .......................................13
Handling static-sensitive devices...........................13
Knowing replaceable parts.......................................14
Customer-Replaceable Units (CRUs).......................... 14
Field-Replaceable Units (FRUs).................................... 14
CRUs and FRUs locations..............................................15
Replacing CRUs............................19
Before replacing CRUs ..............................................19
Replacing the keyboard or wireless keyboard......20
Replacing the keyboard .................................................. 20
Replacing the wireless keyboard.................................. 20
Replacing the mouse or wireless mouse ..............21
Replacing the mouse ...................................................... 21
Replacing the wireless mouse ...................................... 21
Replacing the power cord.........................................23
Replacing the monitor stand....................................24
Replacing the UltraFlex II Stand ..............................25
Removing the slide cover..........................................26
Replacing the 2.5-inch storage drive .....................27
Replacing the optical drive .......................................28
Replacing the memory module ...............................30
Completing the parts replacement.........................32
Replacing FRUs ............................33
Before replacing FRUs...............................................33
Replacing the computer cover and
side I/O bezel...............................................................36
Replacing the control button board........................38
Replacing the integrated camera............................39
Replacing the system board shield and
side I/O bracket...........................................................40
Replacing the VESA mount bracket and cover
presence switch..........................................................41
Replacing the power supply assembly ..................43
Replacing the heat sink.............................................45
Replacing the system fan.........................................46
Replacing the coin-cell battery................................47
Replacing the Wi-Fi card...........................................49
Replacing the Wi-Fi antennas..................................51
Replacing the USB 3.0 Type-C
connector board .........................................................53
Replacing the card reader.........................................54
Replacing the M.2 storage drive..............................55
Replacing the serial connector module .................57
Replacing the internal speakers..............................58
Replacing the ac-in cables.......................................59
Replacing the thermal sensor..................................61
Replacing the SATA cables.......................................62
Replacing the microprocessor.................................63
Replacing the system board ....................................65
Replacing the LCD panel and middle frame .........67
Notices & Trademarks ..................69
Notices..........................................................................69
Trademarks .................................................................70
Contents

Overview 3
Overview
Front view
Note Your computer model might look slightly different from the illustration.
1Integrated microphones (2) (optional)
Used to record sounds or use speech-recognition software
without using a microphone.
2Integrated camera activity indicator (optional)
When the indicator is on, the camera is in use.
3Integrated camera (optional)
Used to take pictures or hold a video conference.
4Optical drive eject/close button (optional)
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.
5Optical drive activity indicator (optional)
This indicator is on when the optical drive is in use.
6Monitor/computer mode switch
Used to switch between the monitor mode and computer
mode manually.
7Brightness-up control (computer mode)
Used to enhance the screen brightness.
8Brightness-down control (computer mode)
Used to reduce the screen brightness.
9Microphone mute/unmute control (computer
mode)
Used to mute or unmute the integrated microphones.

Overview 4
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 Microphone mute/unmute indicator
When the microphone mute/unmute indicator is on, the
microphones are muted.
12 Power indicator
When the power indicator is on, the computer is on.
13 Storage drive activity indicator
When the storage drive activity indicator is on, the storage
drives are in use.
14 Internal speakers (2)
Used to listen to the sounds from your computer without
using a headset or headphones.
15 Screen
Depending on the computer model, your computer screen
might support the multi-touch feature. This feature enables
you to use one or two ngers to interact with the computer.
Note • To single click, tap the touch screen
once with your nger.
• To double-click, tap the touch screen
twice without pausing.
• To right-click, tap and hold the
touch screen until a round circle is
displayed. Then, lift your nger off
the touch screen to display a context
menu. You can make your selection
from the menu.
• To make it easier to read or edit a
document, use two ngers to zoom
in, zoom out, scroll, or rotate on the
touch screen.

Overview 5
Rear view
Note Your computer model might look slightly different from the illustration.
1Integrated camera shield control slider (optional)
Used to disable the integrated camera physically.
2USB 3.0 Type-C connector (optional)
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
3.0 device to a USB 3.0 connector instead of a USB 2.0
connector.
3USB 3.0 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
3.0 device to a USB 3.0 connector instead of a USB 2.0
connector.
4Always On USB 3.0 connector (for rapid charge)
Used to connect a device that requires a USB 2.0 or USB
3.0 connection, such as a keyboard, a mouse, a scanner,
a printer, or a personal digital assistant (PDA). With the ac
power adapter connected, you can charge the automatically
detected device even when the computer is in hibernation
mode or turned off.
5Headset connector
Used to connect a headset or headphones to your
computer.
6Card reader slot (optional)
Used to read data from a supported memory card.

Overview 6
7USB 3.0 connectors (4)
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
3.0 device to a USB 3.0 connector instead of a USB 2.0
connector.
8DisplayPort® in/out connector
Used to receive or send audio and video signals. When a
high-performance monitor is attached to this connector, the
computer automatically changes to the computer mode.
When another computer is attached to this connector, the
computer automatically changes to the monitor mode.
9Ethernet connector
Used to connect an Ethernet cable for network access.
10 Serial connector (optional)
Used to connect an external modem, a serial printer, or
other devices that use a serial connector.
11 Security-lock slot
Used to secure a Kensington-style cable lock.
12 Power cord connector
Used to connect the power cord to your computer for
power supply.

Overview 7
System board
Note See Front view or Rear view for additional component descriptions.
1LCD power connector
2Integrated camera connector
3Microprocessor socket
4Coin-cell battery
5M.2 Wi-Fi card slot
6Memory slot (DIMM2)
7Memory slot (DIMM1)
8USB 3.0 Type-C connector
9Card reader connector
10 M.2 storage drive slot
11 Internal speaker connector
12 LCD panel connector
13 Graphics processor unit (GPU)
(optional)
14 Serial connector
15 Thermal sensor connector

Overview 8
16 Control button board connector
17 Touch screen connector
18 Power supply assembly connector
19 SATA connector (for connecting an
optical drive)
20 SATA connector (for connecting a
storage drive)
21 Power connector (for connecting a
storage drive or an optical drive)
22 System fan connector

Overview 9
Adjusting the monitor stand
Note The monitor stand is available only on some models.
Adjust the vertical position of the computer between 5° forward and
45° back.
Adjusting the UltraFlex II Stand
Note The UltraFlex II Stand is available only on some models.
Adjust the vertical position of the computer between 5° forward and
61° back.
After tilting your computer back, you can adjust the UltraFlex II
Stand downward by up to 59°.
Turn the computer at an angle of 45° to the left and 45° to the right.

Overview 10
Machine type and model label
The machine type and model label identies your computer. When you contact Lenovo for help, the
machine type and model information helps support technicians to identify your computer and provide
faster service.
The machine type and model label is attached on the rear side of your computer as shown.

Computer locks 11
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 xture. 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.

Specications 12
Specications
Power supply •150 watt automatic voltage-sensing power supply
•180 watt automatic voltage-sensing power supply (optional)
Storage drives Up to two storage drives
Video features The integrated graphics card supports the DisplayPort in/out connector
on your computer.
Audio features The integrated audio card supports the following:
•Headset connector
•Integrated microphones (optional)
•Internal speakers
Input/Output (I/O) features •Card reader slot (optional)
•Ethernet connector
•DisplayPort in/out connector
•Headset connector
•Serial connector (optional)
•USB connectors
•USB 3.0 Type-C connector (optional)
Expansion •Card reader slot (optional)
•Memory slots
•Optical drive (optional)
•Storage drive bay
Network features •Ethernet LAN
•Wireless LAN (optional)
•Bluetooth (optional)
Physical dimensions (without a
computer stand)
•Width: 584 mm (23.0 inches)
•Height: 390 mm (15.4 inches)
•Depth: 45 mm (1.8 inches)
Weight (with a computer stand) •Maximum conguration as shipped: 10.3 kg (22.7 lb)

Replacing hardware 13
Replacing hardware
Before replacing hardware
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Read these notes before replacing hardware:
• Some of the hardware components explained in this manual are optional.
• 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 Customer Replaceable Units (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 component until the defective component
has been removed and you are ready to install the new component. Static electricity, although harmless to
you, can seriously damage computer components.
When you handle parts and other computer components, take these precautions to avoid static damage:
• Limit your movement. Movement can cause static electricity to build up around you.
• Always handle computer components carefully. Handle PCI/PCI-Express cards, memory modules,
system boards, and microprocessors by the edges. Never touch any exposed circuitry.
• Prevent others from touching the parts and other computer components.
• Touch the anti-static package containing the component 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 component.
• When possible, remove the new component from the anti-static package, and install it directly in the
computer without setting the part down. When this is not possible, place the anti-static package that the
component came in on a smooth, level surface and place the component on the package.
• Do not place the component on the computer cover or any other metal surface.

Replacing hardware 14
Knowing replaceable parts
Customer-Replaceable Units (CRUs)
CRUs are computer parts that a user can upgrade or replace. There are two types of CRUs: self-service and
optional-service.
Self-service CRUs You can install self-service CRUs easily. These CRUs might be standalone,
latched, or secured by up to two screws.
Examples of self-service CRUs include the keyboard, mouse, any USB
device, and the power cord. Other self-service CRUs might include memory
modules, adapter cards, hard disk drives, and optical drives.
Note Users 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 specic CRU.
Optional-service CRUs can be removed and installed by users or, during the
warranty period, by a Lenovo service technician.
Field-Replaceable Units (FRUs)
FRUs are computer parts that a trained technician can upgrade or replace.
For detailed FRU information, such as the FRU part numbers and supported computer models, go to:
http://www.lenovo.com/serviceparts-lookup

Replacing hardware 15
CRUs and FRUs locations
Refer to the following illustrations to check the locations of CRUs and FRUs within the computer.
Note Some of the following parts are optional on some models.
Self-service CRU
1Monitor stand base p. 24
2Monitor stand p. 24
3UltraFlex II Stand p. 25
4Slide cover p. 26
7Memory module shield p. 30
22 Memory module p. 30
34 Storage drive p. 27
35 Storage drive bracket p. 27
43 Keyboard or wireless keyboard p. 20
44 Mouse or wireless mouse p. 21
45 Power cord p. 23

Replacing hardware 16
Optional-service CRU
37 Optical drive holder p. 28
38 Optical drive p. 28
39 Optical drive bezel p. 28

Replacing hardware 17
FRU
5Computer cover p. 36
6Side I/O bezel p. 36
8System board shield p. 40
9Side I/O bracket p. 40
10 VESA® mount bracket p. 41
11 Cover presence switch
(intrusion switch) p. 41
12 Wi-Fi antennas (2) p. 51
13 Integrated camera p. 39
14 Integrated camera cable p. 39
15 Heat sink p. 45
16 Microprocessor p. 63
17 System board p. 65
18 Coin-cell battery p. 47
19 Wi-Fi card shield p. 49
20 Wi-Fi card p. 49
21 USB 3.0 Type-C connector board
p. 53
23 M.2 storage drive p. 55
24 Card reader p. 54
25 Thermal pad p. 61
26 Serial connector module p. 57
27 Internal speakers p. 58

Replacing hardware 18
28 Thermal sensor p. 61
29 ac-in cable p. 59
30 Power supply assembly p. 43
31 LCD panel p. 67
32 Middle frame p. 67
33 SATA cables p. 62
36 System fan p. 46
40 Control button board p. 38
41 Control button board bracket
p. 38
42 Control button board cable p. 38

Replacing CRUs 19
Replacing CRUs
Before replacing CRUs
Customer Replaceable Units (CRUs) are computer parts that a user can upgrade or replace. There are two
types of CRUs: self-service and optional-service.
Before replacing a CRU, click the illustration of the part to check the brief procedures.
Note • Before replacing a CRU, ensure that you have read the instructions in the Handling static-
sensitive devices.
• To replace a component that is not in the list below, contact a Lenovo service technician.
The support phone numbers are available at http://www.lenovo.com/support/phone.
Mouse or wireless
mouse
Monitor stand
Power cord
Slide cover
Memory module
Keyboard or wireless
keyboard
UltraFlex II Stand
Optical drive2.5-inch storage drive

Replacing CRUs 20
Replacing the keyboard or wireless keyboard
Note The wireless keyboard is available only on some models.
Replacing the keyboard
1 Turn off the computer and disconnect all power cords from electrical outlets.
2 Disconnect the old keyboard cable from the computer.
3 Connect a new keyboard to the appropriate connector on the computer.
Replacing the wireless keyboard
1 Remove your old wireless keyboard.
2 Take out the new wireless keyboard from the package.
3 Open the battery compartment cover, and install two AAA batteries according to the polarity
indicators.
4 Remove the USB dongle from the keyboard compartment or from the wireless mouse compartment
and connect it to an available USB connector on the computer.
5 Close the compartment cover. The keyboard is ready for use.