Page 1
V320
User Guide and
Hardware Maintenance Manual
Machine Type (MT):
10N5, 10N6
Energy Star MT:
10N5, 10N6
Overview
Locations of indicators,
connectors, and
controls provided on
your computer
Replaceable parts
Locations of the
replaceable parts on
your computer
Locking the computer
Locking devices for
your computer
Replacing CRUs
Replacing instructions
for Customer
Replaceable Units
(CRUs)
Specications
Specications of your
computer
Replacing FRUs
Replacing instructions
for Field Replaceable
Units (FRUs) (for
technicians only)
Page 2
Contents
Overview ......................................... 3
Front view .......................................................................3
Rear view ........................................................................4
System board ................................................................ 6
Machine type and model label ...................................7
Locking the computer ....................8
Locking the computer cover ......................................8
Attaching a Kensington-style cable lock ................. 8
Attaching a cable lock .................................................8
Specications ................................. 9
Replacing hardware ......................11
Before replacing hardware .......................................11
Handling static-sensitive devices ...........................11
Knowing replaceable parts .......................................12
Customer-Replaceable Units (CRUs) .......................... 12
Field-Replaceable Units (FRUs) .................................... 12
CRUs and FRUs locations .............................................. 13
Replacing the heat sink and fan assembly ...........30
Replacing the PCI Express card ..............................31
Replacing the Wi-Fi card ...........................................32
Replacing the coin-cell battery ................................34
Completing the parts replacement .........................36
Replacing eld-replaceable units
(FRUs)...........................................37
Before replacing FRUs ...............................................37
Replacing the card reader .........................................39
Replacing the power button .....................................40
Replacing the Wi-Fi antennas ..................................42
Replacing the thermal sensor ..................................44
Replacing the system board ....................................45
Notices & Trademarks ..................47
Notices..........................................................................47
Trademarks .................................................................48
Replacing customer-replaceable
units (CRUs) .................................16
Before replacing CRUs ..............................................16
Replacing the wireless mouse .................................18
Replacing the wireless keyboard .............................20
Replacing the power adapter ...................................21
Removing the computer cover ................................22
Replacing the front bezel ..........................................23
Replacing the optical drive .......................................24
Replacing the optical drive bracket .........................25
Pivoting the drive bay assembly upward and
downward ....................................................................26
Replacing the storage drive ......................................27
Replacing the memory module ...............................29
2
Page 3
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 activity indicator
2
This indicator is on when the optical drive is in use.
Card reader slot (optional)
3
Used to read data from a supported memory card.
Power indicator
4
This indicator is on when the computer is on.
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.
6
7
8
9
10
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.
Headphone connector
Used to connect headphones to the computer.
USB 3.0 connectors (2)
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
PDA. For optimal data transfer, connect a USB 3.0 device to a USB
3.0 connector instead of a USB 2.0 connector.
USB 2.0 connectors (2)
Used to connect a device that requires a USB 2.0 connection,
such as a keyboard, a mouse, a scanner, a printer, or a personal
digital assistant (PDA).
Storage drive activity indicator
This indicator is on when the storage drive is in use.
Overview 3
Page 4
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.
HDMI connector
2
Used to send or receive audio and video signals. Another audio
or video device (such as a high-performance monitor) can be
attached to this High-Denition Multimedia Interface (HDMI)
connector.
VGA-out connector
3
Used to send video signals. You can attach a compatible video
device to this connector, such as a video graphics array (VGA)
monitor.
USB 2.0 connectors (2)
4
Used to connect a device that requires a USB 2.0 connection.
Power adapter connector
5
Used to connect the power adapter to the computer for power
supply.
Audio line-out connector
6
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 linein 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
Page 5
Audio line-in connector
7
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.
Ethernet connector
8
Used to connect an Ethernet cable for network access.
Power adapter cable loop
9
Used to secure the power adapter cable.
10
11
12
13
14
Cable lock slots
Used to secure a cable lock.
Rear Wi-Fi antenna cover
Used to protect the rear Wi-Fi antenna that is optional.
PCI/PCI-Express card area (different cards provide
different connectors)
To extend the capabilities of your computer, you can install a PCI/
PCI-Express card into the slots in this area. Depending on your
computer model, the available connectors might vary.
Padlock loop
Used to secure a padlock.
Security-lock slot
Used to secure a Kensington-style cable lock.
Overview 5
Page 6
System board
Note
See Front view or Rear view for additional component descriptions.
Microprocessor fan connector
1
Memory slot
2
Buzzer
3
4-pin power connector
4
Front panel connector (for
5
connecting LED indicators and
the power button)
Coin-cell battery
6
Card reader connector
7
8
9
10
11
12
13
M.2 Wi-Fi card slot
PCI Express x1 card slot
PCI Express x16 graphics card
slot
SATA connector 2 (SATA 3.0
connector)
SATA connector 1 (SATA 3.0
connector)
Microprocessor
Overview 6
Page 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 front of the computer as shown.
Overview 7
Page 8
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 8
Insert the clip 1 into the cable-lock slot 4.
Pull the cables you want to lock through the dents in the cable
lock.
Press the clip 2 into the cable-lock slot 3 until it snaps into
position.
Page 9
Specications
Power supply
Storage drives
Video features
Audio features
• 65-watt power adapter
• 90-watt power adapter
Up to two storage drives
The integrated graphics card supports the following:
• HDMI connector
• VGA connector
The optional discrete graphics card provides enhanced display capability
and experience.
The integrated audio card supports the following:
• Audio line-in connector
• Audio line-out connector
• Headset connector
• Internal speaker (optional)
• Microphone connector
Input/Output (I/O) features
Expansion
• Audio connectors (audio line-in connector, audio line-out connector,
headset connector, and microphone connector)
• Card reader slot (optional)
• Display connectors (HDMI connector and VGA connector)
• Ethernet connector
• USB connector
• Card reader (optional)
• Memory slot
• Optical drive (optional)
• PCI Express x1 card slot
• PCI Express x16 graphics card slot
• Storage drive bay
Specications 9
Page 10
Network features
• Ethernet LAN
• Wireless LAN (optional)
• Bluetooth (optional)
Physical dimensions
Weight (without the package)
• Width: 145 mm (5.7 inches)
• Height: 366 mm (14.4 inches)
• Depth: 293 mm (11.5 inches)
Maximum conguration as shipped: 5.2 kg (11.5 lb)
Specications 10
Page 11
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 (Customer Replaceable Units).
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 11
Page 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
Users are responsible for replacing all 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.
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 12
Page 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. 34
6
Memory module p. 29
7
Optical drive bracket p. 25
9
Optical drive p. 24
15
Optical drive bezel p. 24
16
Front bezel p. 23
17
Card reader slot shield
18
Keyboard p. 20
19
Mouse p. 18
20
Power cord p. 21
21
Power adapter p. 21
22
2.5-inch storage drive p. 27
23
Storage drive bracket p. 27
24
3.5-inch storage drive p. 27
26
PCI Express card p. 31
29
Replacing hardware 13
Page 14
Optional-service CRU
Heat sink and fan assembly p. 30
2
Wi-Fi card p. 32
4
Wi-Fi card shield p. 32
5
Replacing hardware 14
Page 15
FRU
System board p. 45
3
Optical drive cable p. 24
8
Card reader p. 39
10
Power button p. 40
11
Wi-Fi antennas p. 42
12
Rear Wi-Fi antenna cover p. 42
13
Thermal sensor p. 44
14
Storage drive cable p. 27
25
Power supply shield
27
28
Chassis
Replacing hardware 15
Page 16
Replacing customer-replaceable units (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.
Attention
Before replacing a CRU, click the illustration of the part to check the brief procedures.
Computer cover
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
KeyboardMouse
Front bezel
Power adapter
Optical drive
Storage drive
Replacing customer-replaceable units (CRUs) 16
Memory moduleOptical drive bracket
Page 17
Heat sink and fan
assembly
Coin-cell battery
Wi-Fi cardPCI Express card
Note
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 customer-replaceable units (CRUs) 17
Page 18
Replacing the wireless mouse
1
2
3
4
Note
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
Disconnect the USB dongle from your computer. Then, take away your failing wireless mouse.
Remove the new wireless mouse from the package.
Replace the wireless mouse.
1 2
The wireless mouse is available only on some models.
3 4
Replacing customer-replaceable units (CRUs) 18
Page 19
5
6
Note
• The green LED indicates that the mouse is ready for use.
• The flashing amber LED indicates a low battery power level.
• Push the power switch to the off position when you are not using the mouse to
extend the battery life.
• After disconnecting the USB dongle from your computer, store it in the wireless
mouse compartment or in the wireless keyboard compartment.
Replacing customer-replaceable units (CRUs) 19
Page 20
Replacing the wireless keyboard
1
2
3
4
Note
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
Remove your failing wireless keyboard.
Take out the new wireless keyboard from the package.
Open the battery compartment cover, and install two AAA batteries according to the polarity
indicators.
The wireless keyboard is available only on some models.
5
6
Replacing customer-replaceable units (CRUs) 20
Take away the USB dongle from the keyboard compartment or from the wireless mouse
compartment and connect it to an available USB connector on the computer.
Close the compartment cover. The keyboard is ready for use.
Page 21
Replacing the power adapter
1
2
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
Replace the power adapter.
1 2
Replacing customer-replaceable units (CRUs) 21
Page 22
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. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
Hold the sides of your computer and gently lay it down so that the computer cover is facing up.
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 customer-replaceable units (CRUs) 22
Reinstall the computer cover and reconnect the cables. For details, see Completing the parts
replacement.
Page 23
Replacing the front bezel
1
2
3
Attention
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
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.
4
Replacing customer-replaceable units (CRUs) 23
Reinstall the computer cover and reconnect the cables. For details, see Completing the parts
replacement.
Page 24
Replacing the optical drive
1
2
3
4
5
Attention
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
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 rear of 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.
6
Replacing customer-replaceable units (CRUs) 24
Reinstall the computer cover and reconnect the cables. For details, see Completing the parts
replacement.
Page 25
Replacing the optical drive bracket
1
2
3
4
5
Attention
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Remove the optical drive. For details, see Replacing the optical drive.
Replace the optical drive bracket.
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
6
Replacing customer-replaceable units (CRUs) 25
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
Completing the parts replacement.
see
Page 26
Pivoting the drive bay assembly upward and downward
1
2
3
4
Attention
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
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.
5
Replacing customer-replaceable units (CRUs) 26
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
Completing the parts replacement.
see
Page 27
Replacing the storage drive
1
2
3
4
5
6
Attention
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
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 storage drive.
Depending on your computer model, refer to one of the following:
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
• Replace the 3.5-inch storage drive in the primary storage drive bay.
1 2
Replacing customer-replaceable units (CRUs) 27
Page 28
• Replace the 3.5-inch storage drive in the secondary storage drive bay.
1 2
• Replace the 2.5-inch storage drive in the secondary storage drive bay.
1 2
3 4
7
8
Replacing customer-replaceable units (CRUs) 28
Connect the signal cable and the power cable to the storage drive.
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
Completing the parts replacement.
see
Page 29
Replacing the memory module
Attention
If your computer supports one memory module, install the module into the DIMM 1 slot. If your computer
supports two memory modules, install one memory module into the DIMM 1 slot rst and then install the
other into the DIMM 2 slot.
1
2
3
4
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
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.
5
6
Replace the memory module.
1 2
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
Completing the parts replacement.
see
Replacing customer-replaceable units (CRUs) 29
Page 30
Replacing the heat sink and fan assembly
1
2
3
4
Attention
Caution
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
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.
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.
5
6
7
Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the
system board.
Replace the heat sink and fan assembly.
1 2
Connect the heat sink and fan assembly cable to the microprocessor fan connector on the system
board.
8
Replacing customer-replaceable units (CRUs) 30
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
Completing the parts replacement.
see
Page 31
Replacing the PCI Express card
1
2
3
4
5
Attention
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
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 PCI Express card.
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
6
1 2
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
Completing the parts replacement.
see
Replacing customer-replaceable units (CRUs) 31
Page 32
Replacing the Wi-Fi card
1
2
3
4
5
Attention
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
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
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 2
3 4
5
6
Replacing customer-replaceable units (CRUs) 32
Page 33
• Type 2
1 2
3 4
6
5
Note
Reinstall the computer cover and reconnect the cables. For details, see Completing the parts
replacement.
The locations of Wi-Fi antenna connectors might vary.
6
Replacing customer-replaceable units (CRUs) 33
Page 34
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
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
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.
Replace the coin-cell battery.
1 2
Replacing customer-replaceable units (CRUs) 34
Page 35
3 4
6
To dispose of the coin-cell battery, refer to the “Lithium coin-cell battery notice” topic in the Safety and
Warranty Guide.
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
Completing the parts replacement.
see
Replacing customer-replaceable units (CRUs) 35
Page 36
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.
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.
Install the computer cover.
4
5
6
Replacing customer-replaceable units (CRUs) 36
Place the computer in an upright position.
If a locking device is available, use it to lock the computer.
Reconnect the external cables and power cords to the corresponding connectors on the computer.
Page 37
Replacing eld-replaceable units (FRUs)
Before replacing FRUs
Before replacing any Field Replaceable Units (FRUs), 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
Attention
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
CRUs and FRUs locations.
Replacing eld-replaceable units (FRUs) 37
Page 38
Before replacing an FRU, click the illustration of the part to check the brief procedures.
Card reader Wi-Fi antennasPower button
Thermal sensor System board
Note
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 eld-replaceable units (FRUs) 38
Page 39
Replacing the card reader
1
2
3
4
5
Attention
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
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 card reader cable from the system board.
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
6
7
Replace the card reader.
Caution
1 2
Connect the card reader cable to the system board.
Touch only the edges of the card reader. Do not touch the card reader’s circuit
board.
8
Replacing eld-replaceable units (FRUs) 39
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
Completing the parts replacement.
see
Page 40
Replacing the power button
1
2
3
4
5
Attention
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
Remove the computer cover. For details, see Removing the computer cover.
Remove the front bezel. For details, see Replacing the front bezel.
Disconnect the cable of the power button from the system board.
Replace the power button.
1 2
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Replacing eld-replaceable units (FRUs) 40
Page 41
3 4
5
6
7
Replacing eld-replaceable units (FRUs) 41
Connect the cable of the power button to the system board.
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
Completing the parts replacement.
see
Page 42
Replacing the Wi-Fi antennas
1
2
3
4
5
6
Attention
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
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 antenna cables from the Wi-Fi card.
Replace the Wi-Fi antennas.
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
• Front Wi-Fi antenna
1 2
3
Replacing eld-replaceable units (FRUs) 42
Page 43
• Rear Wi-Fi antenna
1 2
3 4
7
8
5
Connect the antenna cables to the Wi-Fi card.
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
Completing the parts replacement.
see
Replacing eld-replaceable units (FRUs) 43
Page 44
Replacing the thermal sensor
1
2
3
4
5
Attention
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
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 thermal sensor cable from the system board.
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
6
7
8
Replace the thermal sensor.
1 2
Reconnect the thermal sensor cable to the system board.
Reinstall the removed parts and computer cover, and then reconnect the cables. For details,
Completing the parts replacement.
see
Replacing eld-replaceable units (FRUs) 44
Page 45
Replacing the system board
1
2
3
4
5
Attention
Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to
the computer.
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 memory module. For details, see Replacing the memory module.
Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
6
7
8
9
Remove the heat sink and fan assembly. For details, see Replacing the heat sink and fan assembly.
Remove the PCI Express card. For details, see Replacing the PCI Express card.
Remove the Wi-Fi card. For details, see Replacing the Wi-Fi card.
Record the cable routing and cable connections, and then disconnect all cables from the system
board.
Replacing eld-replaceable units (FRUs) 45
Page 46
10
Replace the system board.
Note
Carefully handle the system board carefully by its edges.
11
12
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 and computer cover, and then reconnect the cables. For details,
Completing the parts replacement.
see
System board.
Replacing eld-replaceable units (FRUs) 46
Page 47
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
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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
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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 47
Page 48
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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 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.
Trademarks
The following terms are trademarks of Lenovo in
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Lenovo
The Lenovo logo
The terms HDMI and HDMI High-Denition
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.
Notices & Trademarks 48
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