Lenovo ThinkCentre M715s User Guide and Hardware Maintenance Manual [en, ar, bg, bs, cs, da, de, el, es, fi, fr, he, hr, hu, it, ja, ko, nb, nl, pl, pt, ro, ru, sh, sk, sl, sr, sv, th, tr, uk, zc, zh]
M715s
User Guide and
Hardware Maintenance Manual
Machine Type (MT):
10MB, 10MC
Energy Star MT:
10MB, 10MC
Overview
Locations of indicators,
connectors, and
controls provided on
your computer
Replacing hardware
Locations of the
replaceable parts on
your computer
Specications
Specications of your
computer
Replacing CRUs
Replacing instructions
for Customer
Replaceable Units
(CRUs)
Locking the computer
Locking devices for
your computer
Replacing FRUs
Replacing instructions
for Field Replaceable
Units (FRUs) (for
technicians only)
Contents
Overview ......................................... 3
Front view .......................................................................3
Rear view ........................................................................4
System board ................................................................ 6
Machine type and model label ................................... 8
Specications ................................. 9
Locking the computer ................... 11
Locking the computer cover .....................................11
Attaching a Kensington-style cable lock ................11
Attaching a cable lock ...............................................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 the coin-cell battery ................................. 33
Replacing the M.2 solid-state drive .........................34
Replacing the M.2 solid-state drive bracket ..........36
Replacing the power supply assembly ...................37
Completing the parts replacement .........................38
Replacing(FRUs) ........................... 39
Before replacing FRUs ...............................................39
Replacing the Wi-Fi antennas ..................................41
Replacing the internal speaker .................................43
Replacing the illuminated red dot ............................45
Replacing the thermal sensor ..................................46
Replacing front I/O options ......................................48
Replacing the heat sink and fan assembly ............50
Replacing the microprocessor .................................51
Replacing the cover presence switch .....................53
Replacing the system board .....................................54
Notices & Trademarks ..................56
Notices .........................................................................56
Trademarks ..................................................................57
Replacing CRUs ............................18
Before replacing CRUs ..............................................18
Replacing external options .......................................20
Removing the computer cover ................................22
Replacing the front bezel ..........................................23
Replacing the optical drive........................................24
Pivoting the drive bay assembly upward and
downward ....................................................................25
Replacing the storage drive ......................................26
Replacing the 3.5-inch primary storage drive ............. 26
Replacing the 2.5-inch primary storage drive ............. 27
Replacing the 2.5-inch secondary storage drive ........ 27
Replacing a memory module ................................... 29
Replacing a PCI Express card ..................................30
Replacing the Wi-Fi card ...........................................31
2
Overview
Front view
Note
Your computer model might look slightly different from the illustration.
Optical drive eject/close button
1
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.
Optical drive status indicator
2
This indicator is on when the optical drive is in use.
Storage drive status indicator
3
This indicator is on when the storage drive is in use.
Card reader slot (optional)
4
Used to read data from a supported memory card.
Power button
5
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.
Power indicator
6
This indicator is on when the computer is on.
Microphone connector
7
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.
Headphone connector
8
Used to connect headphones to your computer.
USB 3.1 connectors (2)
9
Used to connect a USB-compatible device. For optimal data
transfer, connect a USB 3.1 device to a USB 3.1 connector instead
of a USB 3.0 or USB 2.0 connector.
10
11
12
Overview 3
USB 3.0 connectors (2)
Used to connect a USB-compatible device. For optimal data
transfer, connect a USB 3.0 device to a USB 3.1 or USB 3.0
connector instead of a USB 2.0 connector.
Illuminated red dot
This indicator is on when the computer is on.
Internal speaker (optional)
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.
Microphone connector
1
Used to connect a microphone to your computer when you want
to record sound or use speech recognition software.
VGA-out connector
2
Used to send video signals from the computer to another video
device, such as a monitor.
DisplayPort®-out connectors (2)
3
Used to send audio and video signals from the computer to
another audio or video device, such as a high-performance
monitor.
USB 3.0 connectors (2)
4
Used to connect a USB-compatible device. For optimal data
transfer, connect a USB 3.0 device to a USB 3.1 or USB 3.0
connector instead of a USB 2.0 connector.
USB 2.0 connectors (2)
5
Used to connect a device that requires a USB 2.0 connection.
PS/2 keyboard connector
6
Used to connect a keyboard that uses a Personal System/2 (PS/2)
keyboard connector.
Audio line-out connector
7
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, 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.
Overview 4
Audio line-in connector
8
Used to receive audio signals from an external audio device, such
as a stereo system. To attach an external audio device, connect a
cable between the audio line-out connector of the device and the
audio line-in connector of the computer.
Serial connector
9
Used to connect an external modem, a serial printer, or other
devices that use a serial connector.
10
11
12
13
14
15
Ethernet connector
Used to connect an Ethernet cable for network access.
PS/2 mouse connector
Used to connect a mouse, a trackball, or other pointing devices
that use a PS/2 mouse connector.
Security-lock slot
Used to secure a Kensington-style cable lock.
Padlock loop
Used to secure a padlock.
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.
Cable lock slots (2) (optional)
Used to secure a cable lock.
16
Overview 5
Power cord connector
Used to connect the power cord to your computer for power
supply.
System board
Note
See Front view or Rear view for additional component descriptions.
4-pin power connector
1
Microprocessor fan connector
2
Internal speaker connector
3
Storage drive status indicator
4
Power button board connector
5
SATA power connectors (2)
6
10-pin power connector
7
SATA 3.0 connectors (3)
8
9
10
11
12
13
14
Auxiliary fan connector 1
Illuminated red dot connector
Thermal sensor connector
M.2 solid-state drive slot
Front USB 2.0 connector (Card reader
connector)
Front USB 2.0 connector
Overview 6
15
Parallel connector
16
17
18
19
20
21
22
23
24
25
Serial (COM2) connector
Buzzer
PCI Express x1 card slots (2)
PCI Express x16 graphics card slot
System fan connector
Microprocessor socket
Memory slot (DIMM1)
Memory slot (DIMM2)
Memory slot (DIMM3)
Memory slot (DIMM4)
26
27
28
29
Coin-cell battery
PCH
M.2 Wi-Fi card slot
Cover presence switch connector
(Intrusion switch connector)
Overview 7
Machine type and model label
The machine type and model label identies 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.
Overview 8
Specications
Power supply
Storage drives
Video features
Audio features
• 180 watt automatic voltage-sensing power supply
• 210 watt automatic voltage-sensing power supply
Up to two 2.5-inch or 3.5-inch storage drives and one M.2 solid-state drive
The integrated graphics card supports the following:
• DisplayPort-out connector
• VGA-out connector
The integrated audio card supports the following:
• Audio line-in connector
• Audio line-out connector
• Headphone connector
• Internal speaker (optional)
• Microphone connector
The optional discrete audio card provides an enhanced audio experience and
extended capabilities.
Input/Output (I/O) features
Expansion
• Audio connectors (audio line-in, audio line-out, headphone, and
microphone)
• Card reader slot (optional)
• Display connectors (DisplayPort-out and VGA-out)
• Ethernet connector
• PS/2 keyboard connector
• PS/2 mouse connector
• Serial connector
• USB connector
• Card reader (optional)
• Memory slot
• Optical drive
• PCI Express x1 card slot
• PCI Express x16 graphics card slot
• Storage drive bay
Specications 9
Network features
• Ethernet LAN
• Wireless LAN (optional)
• Bluetooth (optional)
Physical dimensions
Weight (without the package)
• Width: 92.5 mm (3.6 inches)
• Height: 343.5 mm (13.5 inches)
• Depth: 290.5 mm (11.4 inches)
• Maximum conguration as shipped: 6.0 kg (13.2 lb)
Specications 10
Locking the computer
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.
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.
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
2
3
Locking the computer 11
Insert the clip 1 into the cable-lock slot 4.
Guide the cables you want to lock into the grooves of the
cable lock.
Press the clip 2 into the cable-lock slot 3 until it snaps into
position.
Replacing hardware
Before replacing hardware
Attention
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 CRUs. Information about this will come
with the CRU or will come a few days after the CRU arrives.
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
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 parts and other 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 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
that the part came in 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.
Replacing hardware 12
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
Note
Optional-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.
Users are responsible for replacing all self-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 specic 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 13
CRUs and FRUs locations
Refer to the following illustrations to check the locations of CRUs and FRUs within the computer.
Note
Self-service CRU
Some of the following parts are optional on some models.
Computer cover p. 22
1
Coin-cell battery p. 33
6
Memory module p. 29
8
M.2 solid-state drive p. 34
10
M.2 solid-state drive bracket p. 36
11
Secondary storage drive
12
bracket p. 26
Secondary storage drive (a 2.5-
13
inch storage drive) p. 26
Optical drive bracket p. 24
18
Optical drive p. 24
19
Front bezel p. 23
20
Dust shield p. 20
21
Keyboard
22
Mouse
23
Power cord
24
Replacing hardware 14
Primary storage drive
25
(a 2.5-inch or 3.5-inch storage
drive) p. 26
Primary storage drive bracket p. 26
26
Storage converter p. 26
27
Vertical stand p. 20
32
PCI Express card p. 30
37
Replacing hardware 15
Optional-service CRU
Wi-Fi card p. 31
4
Wi-Fi card shield p. 31
5
34
Power supply assembly p. 37
Replacing hardware 16
FRU
Heat sink fan duct p. 50
2
Heat sink and fan assembly p. 50
3
Microprocessor p. 51
7
System board p. 54
9
Card reader p. 48
14
Power button board p. 48
15
Front I/O bracket p. 48
16
Optical drive cable
17
Storage drive cable
28
Illuminated red dot p. 45
29
Thermal sensor p. 46
30
Internal speaker p. 43
31
Chassis
33
Wi-Fi antennas (2) p. 41
35
Cover presence switch
36
(Intrusion switch) p. 53
Replacing hardware 17
Replacing CRUs
Before replacing CRUs
To check the locations of CRUs, see CRUs and FRUs locations.
Attention
Before replacing a CRU, click the illustration of the part to check the brief procedures.
External options
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Computer cover
Front bezel
Optical drive
Replacing CRUs 18
Drive bay assembly
Storage drive
Memory module Wi-Fi cardPCI Express card
Coin-cell battery
Power supply assembly
M.2 solid-state drive
M.2 solid-state drive
bracket
Note
Replacing CRUs 19
To replace a component that is not in the list above, contact a Lenovo service
technician. The support phone numbers are available at: http://www.lenovo.com/
support/phone
Replacing external options
1
2
3
Attention
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.
Refer to the following to replace external options.
• Vertical stand
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
3
Replacing CRUs 20
• Dust shield
1 2
4
Reconnect all cables.
Replacing CRUs 21
Removing the computer cover
1
2
3
4
Attention
Caution
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.
Unlock any locking device that secures the computer cover.
Remove the computer cover.
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Before you open the computer cover, turn off the computer and wait several minutes
until the computer is cool.
5
Replacing CRUs 22
Complete the replacement. For details, see Completing the parts replacement.
Replacing the front bezel
1
2
Attention
Remove the computer cover. For details, see Removing the computer cover.
Replace the front bezel.
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
3
Complete the replacement. For details, see Completing the parts replacement.
Replacing CRUs 23
Replacing the optical drive
1
2
3
4
Attention
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Disconnect the signal cable and the power cable from the optical drive.
Replace the optical drive.
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
3
5
6
Replacing CRUs 24
Connect the signal cable and the power cable to the new optical drive.
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
4
Pivoting the drive bay assembly upward and downward
1
2
3
Attention
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Pivot the drive bay assembly upward and downward.
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
4
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing CRUs 25
Replacing the storage drive
Attention
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Replacing the 3.5-inch primary storage drive
1
2
3
4
5
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and downward.
Disconnect the signal cable and the power cable from the 3.5-inch primary storage drive.
Replace the 3.5-inch primary storage drive.
1 2
3
6
7
Replacing CRUs 26
Connect the signal cable and the power cable to the new 3.5-inch primary storage drive.
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
4
Replacing the 2.5-inch primary storage drive
1
2
3
Remove the storage converter with the 2.5-inch primary storage drive. See Replacing the 3.5-inch
primary storage drive.
Replace the 2.5-inch primary storage drive in the storage converter.
1 2
Reinstall the storage converter with the 2.5-inch primary storage drive. See Replacing the 3.5-inch
primary storage drive.
Replacing the 2.5-inch secondary storage drive
1
2
3
4
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and downward.
Disconnect the signal cable and the power cable from the 2.5-inch secondary storage drive.
Replacing CRUs 27
5
Replace the 2.5-inch secondary storage drive.
1 2
3
5 6
4
6
7
Replacing CRUs 28
Connect the signal cable and the power cable to the new 2.5-inch secondary storage drive.
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing a memory module
Attention
Ensure that you follow the installation order for memory modules shown in the following gure.
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1
2
3
4
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and downward.
Replace a memory module.
1 2
5
Replacing CRUs 29
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing a PCI Express card
1
2
3
4
Attention
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and downward.
Replace a PCI Express card.
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Note
5
Replacing CRUs 30
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
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.
Replacing the Wi-Fi card
1
2
3
4
Attention
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and downward.
Depending on your computer model, refer to one of the following to replace the Wi-Fi card.
• Type 1
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
3
5 6
4
Replacing CRUs 31
• Type 2
1 2
5
3
5 6
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
4
Replacing CRUs 32
Replacing the coin-cell battery
Attention
Your computer has a special type of memory that maintains the date, time, and settings for built-in features,
such as parallel connector assignments (congurations). 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 conguration information (including
passwords) are lost. An error message is displayed when you turn on the computer.
To replace the coin-cell battery,
1
2
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
3
4
5
To dispose of the coin-cell battery, refer to “Lithium coin-cell battery notice” in the Safety and Warranty
Guide.
Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and downward.
Replace the coin-cell battery.
1 2
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing CRUs 33
Replacing the M.2 solid-state drive
1
2
3
4
Attention
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and downward.
Depending on your computer model, refer to one of the following to replace the M.2 solid-state drive.
• Type 1
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
3
Replacing CRUs 34
4
• Type 2
1 2
5
3
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
4
Replacing CRUs 35
Replacing the M.2 solid-state drive bracket
1
2
3
4
5
Attention
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and downward.
Remove the M.2 solid-state drive. For details, see Replacing the M.2 solid-state drive.
Replace the M.2 solid-state drive bracket.
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
6
Replacing CRUs 36
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing the power supply assembly
Attention
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) certication.
Caution
Never remove the cover on a power supply or any part that has the following label attached.
1
2
3
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and downward.
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
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.
4
5
6
Disconnect the power supply assembly cables from the system board.
Replace the power supply assembly.
1 2
Connect the new power supply assembly cables to the system board.
7
Replacing CRUs 37
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
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
2
3
Ensure that all components have been reassembled correctly and that no tools or loose screws
are left inside your computer. See
computer.
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.
Reinstall the computer cover.
System board for the locations of various components in your
4
5
6
Replacing CRUs 38
Place the computer in an upright position.
If a locking device is available, use it to lock the computer. See Locking the computer.
Reconnect the external cables and power cords to the corresponding connectors on the computer.
Front view or Rear view for the locations of various components in your computer.
See
Replacing(FRUs)
Before replacing FRUs
Before replacing any FRU, read the following:
• Only certied 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 by
referring to the website: http://www.lenovo.com/serviceparts-lookup.
• 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.
To check the locations of FRUs, see CRUs and FRUs locations.
Attention
Before replacing an FRU, click the illustration of the part to check the brief procedures.
Do not open your computer or attempt any repair before reading the Important
Product Information Guide.
Wi-Fi antennas Illuminated red dotInternal speaker
Replacing(FRUs) 39
Thermal sensor
Front I/O options
Heat sink and fan
assembly
Microprocessor
Note
Cover presence switch
To replace a component that is not in the list above, contact a Lenovo service technician.
The support phone numbers are available at: http://www.lenovo.com/support/phone
System board
Replacing(FRUs) 40
Replacing the Wi-Fi antennas
1
2
3
4
Attention
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Disconnect the Wi-Fi antenna cables from the Wi-Fi card.
Refer to the following to replace the Wi-Fi antennas.
• Front Wi-Fi antenna
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Replacing(FRUs) 41
• Rear Wi-Fi antenna
1 2
5
6
Connect the new Wi-Fi antenna cables to the Wi-Fi card.
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing(FRUs) 42
Replacing the internal speaker
1
2
3
4
Attention
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Disconnect the internal speaker cable from the system board.
Replace the internal speaker.
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
3 4
Replacing(FRUs) 43
5
5
6
Connect the new internal speaker cable to the system board.
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing(FRUs) 44
Replacing the illuminated red dot
1
2
3
4
5
Attention
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and downward.
Disconnect the illuminated red dot cable from the system board.
Replace the illuminated red dot.
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
3 4
6
7
Replacing(FRUs) 45
Connect the new illuminated red dot cable to the system board.
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing the thermal sensor
1
2
3
4
Attention
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Disconnect the thermal sensor cable from the system board.
Replace the thermal sensor.
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
3
Replacing(FRUs) 46
4
5
5
6
Connect the new thermal sensor cable to the system board.
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing(FRUs) 47
Replacing front I/O options
1
2
3
4
Attention
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Disconnect the power button board cable, card reader cable, and the USB 3.1 Type-C connector cable
from the system board.
Replace front I/O options.
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
3 4
Replacing(FRUs) 48
5 6
7 8
5
6
Replacing(FRUs) 49
Connect the new power button board cable, card reader cable, and the USB 3.1 Type-C connector
cable to the system board.
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing the heat sink and fan assembly
1
2
3
4
Attention
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and downward.
Replace the heat sink and fan assembly.
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
3
5
Replacing(FRUs) 50
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
4
Replacing the microprocessor
1
2
3
4
Attention
Caution
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and downward.
Remove the heat sink and fan assembly. For details, see Replacing the heat sink and fan assembly.
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
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.
5
6
Disconnect all cables connected to the system board.
Replace the microprocessor.
Note
• 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.
Replacing(FRUs) 51
1 2
3 4
7
8
Replacing(FRUs) 52
Reconnect all cables that were disconnected from the system board.
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing the cover presence switch
1
2
3
Attention
Remove the computer cover. For details, see Removing the computer cover.
Disconnect the cover presence switch cable from the system board.
Replace the cover presence switch.
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
4
5
Replacing(FRUs) 53
Connect the new cover presence switch cable to the system board.
Complete the replacement. For details, see Completing the parts replacement.
Replacing the system board
1
2
3
4
5
6
Attention
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Remove the front I/O bracket. For details, see Replacing front I/O options.
Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and downward.
Remove all memory modules. For details, see Replacing a memory module.
Remove the heat sink and fan assembly. For details, see Replacing the heat sink and fan assembly.
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
7
8
9
10
11
Remove the Microprocessor. For details, see Replacing the microprocessor.
Remove all PCI express cards. For details, see Replacing a PCI Express card.
Remove the Wi-Fi card. For details, see Replacing the Wi-Fi card.
Remove the M.2 solid-state drive. For details, see Replacing the M.2 solid-state drive.
Record the cable routing and cable connections, and then disconnect all cables from the system
board. See
System board.
Replacing(FRUs) 54
12
Replace the system board.
Note
• The numbers in the following gure show the locations of the screws instead
of the removing and reinstalling order of the screws.
• Handle the system board carefully by its edges.
13
14
Route all the cables that you disconnected from the failing system board, and then reconnect the
cables to the new system board. See
Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
System board.
Replacing(FRUs) 55
Notices & Trademarks
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 NONINFRINGEMENT, 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 product(s) and/or the
program(s) 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 specications 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 specic environments
and is presented as an illustration. The result
obtained in other operating environments may
vary.
Notices & Trademarks 56
Lenovo may use or distribute any of the
information you supply in any way it believes
appropriate without incurring any obligation to
you.
Trademarks
The following terms are trademarks of Lenovo in
the United States, other countries, or both:
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 signicantly. 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 specic environment.
Lenovo
The Lenovo logo
ThinkCentre
ThinkCentre logo
DisplayPort is a trademark of the Video Electronics
Standards Association.
Other company, product, or service names may be
trademarks or service marks of others.
Notices & Trademarks 57
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