Lenovo ThinkCentre M910x Owner's manual

M910x
User Guide and
Hardware Maintenance Manual
Machine Type (MT):
10MY, 10N0, 10N1, 10N2, 10QQ
Energy Star MT:
10MY, 10N0, 10N1, 10N2, 10QQ
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 for
your computer
Replacing CRUs
Replacing instructions
for customer-
replaceable units
(CRUs)

2
Overview.........................................3
Front view....................................................................... 3
Rear view........................................................................ 4
System board................................................................6
Machine type and model label................................... 7
I/O box............................................8
Overview.........................................................................8
Using the I/O box.......................................................... 9
Computer locks ............................10
Attaching a Kensington-style cable lock ...............10
Specications...............................11
Replacing hardware......................12
Before replacing hardware .......................................12
Handling static-sensitive devices...........................12
Knowing replaceable parts.......................................13
Customer-Replaceable Units (CRUs).......................... 13
Field-Replaceable Units (FRUs).................................... 13
CRUs and FRUs locations..............................................14
Replacing CRUs............................17
Before replacing CRUs ..............................................17
Replacing the keyboard or wireless keyboard......19
Replacing the keyboard .................................................. 19
Replacing the wireless keyboard.................................. 19
Replacing the mouse or wireless mouse ..............20
Replacing the mouse ...................................................... 20
Replacing the wireless mouse ...................................... 20
Replacing the power adapter...................................22
Replacing the vertical stand.....................................23
Replacing the VESA mount bracket........................24
Replacing the external optical drive........................25
Replacing the external I/O box ................................26
Replacing the power adapter bracket ....................27
Removing the computer cover ................................28
Replacing the storage drive......................................29
Replacing the internal speaker ................................30
Replacing the system fan.........................................31
Replacing the PCI Express card and PCI Express
card adapter ................................................................32
Replacing the Wi-Fi card...........................................34
Replacing the bottom cover.....................................37
Replacing the memory module ...............................38
Replacing the M.2 storage drive..............................39
Completing the parts replacement.........................40
Replacing FRUs ............................41
Before replacing FRUs...............................................41
Replacing the illuminated red dot cable ................43
Replacing the advanced speaker............................44
Replacing the Wi-Fi antennas..................................45
Replacing the front Wi-Fi antenna ............................... 45
Replacing the rear Wi-Fi antenna................................. 46
Replacing the storage drive cable...........................48
Replacing the heat sink.............................................49
Replacing the microprocessor.................................50
Replacing the coin-cell battery................................52
Replacing the antenna bracket................................54
Replacing the system board and chassis .............55
Notices & Trademarks ..................57
Notices..........................................................................57
Trademarks .................................................................58
Contents

Overview 3
Overview
Front view
Note Your computer model might look slightly different from the illustration.
1Power indicator
This indicator is on when the computer is on.
2Power 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.
3Storage drive status indicator
This indicator is on when the storage drive is in use.
4Microphone 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.
5Headset connector
Used to connect a headset or headphones to your computer.
6USB 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.
7Always On USB 3.0 connector
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 power adapter
connected, you can charge the automatically detected device
even when the computer is in hibernation mode or turned off.
8Illuminated red dot
This indicator is on when the computer is powered on.

Overview 4
Rear view
Note Your computer model might look slightly different from the illustration.
9Mini DisplayPort® connectors (4) (optional)
Used to send or receive audio and video signals. You can attach
a compatible audio or video device to this connector, such as a
high-performance monitor. Depending on the computer model,
the connector might vary.
10 Security-lock slot
Used to secure a Kensington-style cable lock.
11 Wi-Fi antenna slot
Used to install the rear Wi-Fi antenna cable connector that is
available only on some models. The rear Wi-Fi antenna is installed
on the rear Wi-Fi antenna cable connector.
12 Ethernet connector
Used to connect an Ethernet cable for network access.
13 USB 3.0 connectors (2)
Used to connect a device that requires a USB 2.0 or USB 3.0
connection.
14 USB 3.0 connector
Used to connect a device that requires a USB 2.0 or USB 3.0
connection.
Note The USB 3.0 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.
15 DisplayPort connector
Used to send or receive audio and video signals. You can attach
a compatible audio or video device to this connector, such as a
high-performance monitor.

Overview 5
16 USB 3.0 connector
Used to connect a device that requires a USB 2.0 or USB 3.0
connection.
17 DisplayPort connector
Used to send or receive audio and video signals. You can attach
a compatible audio or video device to this connector, such as a
high-performance monitor.
18 Power adapter connector
Used to connect the power adapter to your computer for power
supply.

Overview 6
System board
Note See Front view or Rear view for additional component descriptions.
1Serial connector 1
2Serial connector 2
3USB 3.0 connector
4Storage drive fan connector
5Microprocessor socket
6Coin-cell battery
7Illuminated red dot connector
8Internal speaker connector
9System fan connector
10 Advanced speaker connector
11 SATA storage drive connector
12 M.2 Wi-Fi card slot
13 PCI Express graphics card slot
14 Memory slot (DIMM1)
15 Memory slot (DIMM2)
16 M.2 storage drive slot 2
17 M.2 storage drive slot 1

Overview 7
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 side of your computer as shown.

I/O box 8
I/O box
Overview
Note Depending on your computer model, the I/O box might be optional.
1USB 2.0 connectors (2)
2Serial connector (optional)
3USB 2.0 connectors (2)
4USB 3.0 connectors (2)
5USB 3.0 connector
(for connecting to the computer)

I/O box 9
Using the I/O box
When you use the I/O box with the ThinkCentre tiny computer, note the following:
• The I/O box supports a maximum current rating of 5 A. It is recommended that you connect low-current
devices to the I/O box and connect high-current devices directly to the ThinkCentre tiny computer to
ensure the best performance of the devices.
• The USB 2.0 connectors and USB 3.0 connectors on the I/O box provide a current of 500 mA and 900
mA current, respectively. When you connect a high-current storage drive to only one USB connector, the
system might not recognize the device. You can connect the storage drive to two USB connectors on the
I/O box.
• The serial connector does not support hot swapping. Do not connect a device to the connector or
remove a device from the connector while the system is running.
• The connectors on the I/O box cannot be enabled or disabled individually. To enable or disable any of the
connectors on the I/O box, enable or disable the USB connectors on the rear of the computer.
• The I/O box enables you to wake up the computer from standby mode through operations on devices
connected to the I/O box connectors.

Computer locks 10
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.