Lenovo V520 Ug Hmm En User Manual (English) Guide And Hardware Maintenance (pdf Version) Desktop (Lenovo) Type 10NK
2017-05-05
User Manual: Lenovo V520 Ug Hmm En (English) User Guide and Hardware Maintenance Manual (pdf version) - Lenovo V520 V520 Desktop (Lenovo) - Type 10NK 10NK
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Page Count: 54
V520
User Guide and
Hardware Maintenance Manual
Machine Type (MT):
10NK, 10NL
Energy Star MT:
10NK, 10NL
Overview
Locations of indicators,
connectors, and
controls provided on
your computer
Replaceable parts
Locations of the
replaceable parts on
your computer
Specications
Specications of your
computer
Replacing FRUs
Replacing instructions
for Field 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 ...................................8
Specications .................................9
Computer locks ............................11
Locking the computer cover ....................................11
Attaching a Kensington-style 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 CRUs ............................17
Before replacing CRUs ..............................................17
Removing the computer cover ................................19
Replacing the front bezel ..........................................20
Replacing the optical drive .......................................21
Replacing the optical drive bracket .........................22
Pivoting the drive bay assembly upward and
downward ....................................................................23
Replacing the storage drive ......................................24
Replacing the 3.5-inch storage drive ...........................24
Replacing the 2.5-inch storage drive ...........................25
Replacing a memory module ................................... 26
Replacing the heat sink and fan assembly ...........28
Replacing the coin-cell battery ................................ 29
Replacing a PCI Express card ..................................30
Replacing the Wi-Fi card ........................................... 31
Replacing the M.2 solid-state drive ........................33
Replacing the M.2 solid-state drive bracket .........35
Replacing the power supply assembly ..................36
Completing the parts replacement .........................37
Replacing FRUs ............................38
Before replacing FRUs ............................................... 38
Replacing the internal speaker ................................40
Replacing the front fan .............................................. 41
Replacing the thermal sensor .................................. 42
Replacing the Wi-Fi antennas ..................................43
Replacing the power button board .........................45
Replacing the card reader ......................................... 47
Replacing the microprocessor .................................48
Replacing the rear fan ...............................................50
Replacing the system board ....................................51
Notices & Trademarks ..................53
Notices..........................................................................53
Trademarks .................................................................54
Contents
Overview 3
Overview
Front view
Note Your computer model might look slightly different from the illustration.
1Optical drive eject/close button
Used to eject the tray of the optical drive. After you insert a disc
into the tray, press the eject/close button to close the tray.
2Optical drive status indicator
This indicator is on when the optical drive is in use.
3Internal speaker (optional)
Used to listen to the sounds from your computer without using a
headset or headphones.
4Card reader slot (optional)
Used to read data from a supported memory card.
5Power indicator
This indicator is on when the computer is on.
6Power 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.
7Microphone 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.
8Headphone connector
Used to connect headphones to your computer.
9USB 3.0 connectors (4)
Used to connect a USB-compatible device. For optimal data
transfer, connect a USB 3.0 device to a USB 3.0 connector instead
of a USB 2.0 connector.
10 Storage drive status indicator
This indicator is on when the storage drive is in use.
Overview 4
Rear view
Note Your computer model might look slightly different from the illustration.
1Microphone connector
Used to connect a microphone to your computer when you want
to record sound or use speech recognition software.
2VGA-out connector
Used to send video signals from the computer to another video
device, such as a monitor.
3DisplayPort®-out connector
Used to send audio and video signals from the computer to
another audio or video device, such as a high-performance
monitor.
4HDMI™-out connector
Used to send audio and video signals from the computer to
another audio or video device, such as a high-performance
monitor.
5USB 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.
6USB 2.0 connectors (2)
Used to connect a device that requires a USB 2.0 connection.
7Audio line-out connector
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 5
8Audio line-in connector
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.
9Serial connector
Used to connect an external modem, a serial printer, or other
devices that use a serial connector.
10 Ethernet connector
Used to connect an Ethernet cable for network access.
11 Serial connector (optional)
Used to connect an external modem, a serial printer, or other
devices that use a serial connector.
12 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.
13 Padlock loop
Used to secure a padlock.
14 Security-lock slot
Used to secure a Kensington-style cable lock.
15 Power cord connector
Used to connect the power cord to your computer for power
supply.
Overview 6
System board
Note See Front view or Rear view for additional component descriptions.
14-pin power connector
2Microprocessor fan connector
3Memory slot (DIMM2)
4Memory slot (DIMM4)
5Buzzer
6Internal speaker connector
710-pin power connector
8SATA power connectors (2)
9SATA 3.0 connectors (3)
10 Auxiliary fan connector 1
11 Power button board connector
12 M.2 solid-state drive slot
13 Thermal sensor connector
Overview 7
14 Front USB 2.0 connector 2
(Card reader connector)
15 Front USB 2.0 connector 1
16 Parallel connector
17 Serial (COM2) connector
18 PCH
19 PCI Express x1 card slot
20 M.2 Wi-Fi card slot
21 PCI Express x16 graphics card slot
22 System fan connector
23 Coin-cell battery
24 Microprocessor socket
Overview 8
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.
Specications 9
Specications
Power supply 180 watt automatic voltage-sensing power supply
Storage drives •3.5-inch storage drive
•2.5-inch storage drive
•M.2 solid-state drive
Video features The integrated graphics card supports the following:
•DisplayPort-out connector
•HDMI-out connector
•VGA-out connector
Audio features 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 •Audio connectors (audio line-in, audio line-out, headphone, and
microphone)
•Card reader slot (optional)
•Display connectors (DisplayPort-out, HDMI-out, and VGA-out)
•Ethernet connector
•Serial connector
•USB connector
Specications 10
Expansion •Card reader (optional)
•Memory slot
•Optical drive
•PCI Express x1 card slot
•PCI Express x16 graphics card slot
•Storage drive bay
Network features •Ethernet LAN
•Wireless LAN (optional)
•Bluetooth (optional)
Physical dimensions •Width: 145.0 mm (5.7 inches)
•Height: 366.0 mm (14.4 inches)
•Depth: 293.2 mm (11.5 inches)
Weight (without the package) Maximum conguration as shipped: 5.7 kg (12.6 lb)
Computer locks 11
Computer locks
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.
Replacing hardware 12
Replacing hardware
Before replacing hardware
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Read these notes before replacing hardware:
• Some of the hardware components explained in this manual are optional.
• Use computer components provided only by Lenovo.
• When installing or replacing an option, use the appropriate instructions explained in this manual along
with the instructions that come with the option.
• In most areas of the world, Lenovo requires the return of defective CRUs. Information about this will
come with the CRU or will come a few days after the CRU arrives.
Handling static-sensitive devices
Do not open the static-protective package containing the new component until the defective component
has been removed and you are ready to install the new component. Static electricity, although harmless to
you, can seriously damage computer components.
When you handle parts and other computer components, take these precautions to avoid static damage:
• Limit your movement. Movement can cause static electricity to build up around you.
• Always handle 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 13
Knowing replaceable parts
Customer Replaceable Units (CRUs)
CRUs are computer parts that a user can upgrade or replace. There are two types of CRUs: self-service and
optional-service.
Self-service CRUs You can install self-service CRUs easily. These CRUs might be standalone,
latched, or secured by up to two screws.
Examples of self-service CRUs include the keyboard, mouse, any USB
device, and the power cord. Other self-service CRUs might include memory
modules, adapter cards, hard disk drives, and optical drives.
Note Users are responsible for replacing all self-service CRUs.
Optional-service CRUs Handling optional-service CRUs requires some technical skills and simple
tools (such as a screwdriver).
These CRUs are isolated parts within the computer. They are usually
concealed by an access panel that is secured by more than two screws. You
must remove the screws and panel to access the 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 14
CRUs and FRUs locations
Refer to the following illustrations to check the locations of CRUs and FRUs within the computer.
Note Some of the following parts are optional on some models.
Self-service CRU
1Computer cover p. 19
6Coin-cell battery p. 29
8Memory module p. 26
10 M.2 solid-state drive p. 33
11 M.2 solid-state drive bracket
p. 35
19 Optical drive bracket p. 22
20 Optical drive p. 21
21 Front bezel p. 20
22 Card reader slot cover
23 Keyboard
24 Mouse
25 Power cord
27 Storage converter p. 25
28 Primary or secondary storage
drive (a 2.5-inch or 3.5-inch
storage drive) p. 24
32 PCI Express card p. 30
Replacing hardware 16
FRU
3Rear fan p. 50
7Microprocessor p. 48
9System board p. 51
12 Power button board p. 45
13 Optical drive cable
14 Card reader p. 47
15 Internal speaker p. 40
16 Wi-Fi antennas (2) p. 43
17 Rear Wi-Fi antenna cover p. 43
18 Thermal sensor p. 42
26 Storage drive cable
29 Front fan p. 41
31 Chassis
Replacing CRUs 17
Replacing CRUs
Before replacing CRUs
To check the locations of CRUs, see CRUs and FRUs locations.
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Before replacing a CRU, click the illustration of the part to check the brief procedures.
Front bezel
Drive bay assembly Storage drive
Computer cover Optical drive
Memory module
Optical drive bracket
Heat sink and fan
assembly
Coin-cell battery
Replacing CRUs 19
Removing the computer cover
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Caution Before you open the computer cover, turn off the computer and wait several minutes
until the computer is cool.
1 Remove any media from the drives and turn off all connected devices and the computer.
2 Disconnect all power cords from electrical outlets and disconnect all cables from the computer.
3 Unlock any locking device that secures the computer cover.
4 Remove the computer cover.
5 Complete the replacement. For details, see Completing the parts replacement.
Replacing CRUs 20
Replacing the front bezel
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Replace the front bezel.
12
3 Complete the replacement. For details, see Completing the parts replacement.
Replacing CRUs 21
Replacing the optical drive
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Disconnect the signal cable and the power cable from the optical drive.
4 Replace the optical drive.
12
5 Connect the signal cable and the power cable to the new optical drive.
6 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing CRUs 22
Replacing the optical drive bracket
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Remove the optical drive. For details, see Replacing the optical drive.
4 Replace the optical drive bracket.
12
5 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing CRUs 23
Pivoting the drive bay assembly upward and downward
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward and downward.
12
4 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing CRUs 24
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 storage drive
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
4 Disconnect the signal cable and the power cable from the 3.5-inch storage drive.
5 Refer to the following to replace the 3.5-inch storage drive.
• 3.5-inch primary storage drive
12
Replacing CRUs 25
• 3.5-inch secondary storage drive
12
6 Connect the signal cable and the power cable to the new 3.5-inch storage drive.
7 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing the 2.5-inch storage drive
1 Remove the storage converter with the 2.5-inch storage drive. See Replacing the 3.5-inch storage drive.
2 Replace the 2.5-inch storage drive in the storage converter.
12
3 Reinstall the storage converter with the 2.5-inch storage drive. See Replacing the 3.5-inch storage
drive.
Replacing CRUs 26
Replacing a memory module
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Ensure that you follow the installation order for memory modules shown in the following gure.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
Replacing CRUs 28
Replacing the heat sink and fan assembly
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
4 Replace the heat sink and fan assembly.
12
5 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing CRUs 29
Replacing the coin-cell battery
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
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 the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
4 Replace the coin-cell battery.
12
34
5 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
To dispose of the coin-cell battery, refer to “Lithium coin-cell battery notice” in the Safety and Warranty
Guide.
Replacing CRUs 30
Replacing a PCI Express card
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
4 Replace a PCI Express card.
12
Note 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.
5 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing CRUs 31
Replacing the Wi-Fi card
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
4 Depending on your computer model, refer to one of the following to replace the Wi-Fi card.
• Type 1
12
34
56
Replacing CRUs 33
Replacing the M.2 solid-state drive
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
4 Depending on your computer model, refer to one of the following to replace the M.2 solid-state
drive.
• Type 1
12
34
Replacing CRUs 35
Replacing the M.2 solid-state drive bracket
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
4 Remove the M.2 solid-state drive. For details, see Replacing the M.2 solid-state drive.
5 Replace the M.2 solid-state drive bracket.
12
6 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing CRUs 36
Replacing the power supply assembly
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
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.
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.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
4 Disconnect the power supply assembly cables from the system board.
5 Replace the power supply assembly.
12
6 Connect the new power supply assembly cables to the system board.
7 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing CRUs 37
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 Ensure that all components have been reassembled correctly and that no tools or loose screws
are left inside your computer. See System board for the locations of various components in your
computer.
2 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.
3 Reinstall the computer cover.
4 Place the computer in an upright position.
5 If a locking device is available, use it to lock the computer. See Computer locks.
6 Reconnect the external cables and power cords to the corresponding connectors on the computer.
See Front view or Rear view for the locations of various components in your computer.
Replacing FRUs 38
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 Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Before replacing an FRU, click the illustration of the part to check the brief procedures.
Internal speaker Thermal sensorFront fan
Replacing FRUs 40
Replacing the internal speaker
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
4 Disconnect the internal speaker cable from the system board.
5 Replace the internal speaker.
12
6 Connect the new internal speaker cable to the system board.
7 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing FRUs 41
Replacing the front fan
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
4 Disconnect the front fan cable from the system board.
5 Replace the front fan.
12
6 Connect the new front fan cable to the system board.
7 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing FRUs 42
Replacing the thermal sensor
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
4 Disconnect the thermal sensor cable from the system board.
5 Replace the thermal sensor.
12
6 Connect the new thermal sensor cable to the system board.
7 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing FRUs 43
Replacing the Wi-Fi antennas
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Disconnect the Wi-Fi antenna cables from the Wi-Fi card. For details, see Replacing the Wi-Fi card.
4 Refer to the following to replace the Wi-Fi antennas.
• Front Wi-Fi antenna
12
• Rear Wi-Fi antenna
12
Replacing FRUs 45
Replacing the power button board
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Disconnect the power button board cable from the system board.
4 Replace the power button board.
12
34
Replacing FRUs 47
Replacing the card reader
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Remove the power button board. For details, see Replacing the power button board.
4 Disconnect the card reader cable from the system board.
5 Replace the card reader.
12
34
6 Connect the new card reader cable to the system board.
7 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing FRUs 48
Replacing the microprocessor
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
Caution 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.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
4 Remove the heat sink and fan assembly. For details, see Replacing the heat sink and fan assembly.
5 Record the cable routing and cable connections, and then disconnect all cables from the system
board. See System board.
6 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.
12
Replacing FRUs 50
Replacing the rear fan
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
4 Replace the rear fan.
12
5 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Replacing FRUs 51
Replacing the system board
Attention Do not open your computer or attempt any repairs before reading the Important
Product Information Guide.
1 Remove the computer cover. For details, see Removing the computer cover.
2 Remove the front bezel. For details, see Replacing the front bezel.
3 Remove the front I/O bracket. For details, see Replacing the card reader.
4 Pivot the drive bay assembly upward. For details, see Pivoting the drive bay assembly upward and
downward.
5 Remove all memory modules. For details, see Replacing a memory module.
6 Remove the heat sink and fan assembly. For details, see Replacing the heat sink and fan assembly.
7 Remove the Microprocessor. For details, see Replacing the microprocessor.
8 Remove all PCI Express cards. For details, see Replacing a PCI Express card.
9 Remove the Wi-Fi card. For details, see Replacing the Wi-Fi card.
10 Remove the M.2 solid-state drive. For details, see Replacing the M.2 solid-state drive.
11 Record the cable routing and cable connections, and then disconnect all cables from the system
board. See System board.
Replacing FRUs 52
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 Route all the cables that you disconnected from the failing system board, and then reconnect the
cables to the new system board. See System board.
14 Reinstall the removed parts. To complete the replacement, see Completing the parts replacement.
Notices & Trademarks 53
Notices & Trademarks
Notices
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LIMITED TO, THE IMPLIED WARRANTIES OF NON-
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document was obtained in specic environments
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obtained in other operating environments may
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Notices & Trademarks 54
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Any performance data contained herein was
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Therefore, the result obtained in other operating
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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
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applicable data for their specic environment.
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