Inspiron 15
7000 Series
Service Manual
Computer Model: Inspiron 7547
Regulatory Model: P41F
Regulatory Type: P41F001
Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make
better use of your product.
CAUTION: A CAUTION indicates either potential damage to hardware or
loss of data and tells you how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage,
personal injury, or death.
Copyright © 2017 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other
trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be
trademarks of their respective owners.
2017 - 09
Rev. A01
Contents
Before working inside your computer.............................8
Before you begin ...................................................................................... 8
Safety instructions.................................................................................... 8
Recommended tools..................................................................................9
After working inside your computer..............................10
Removing the base cover..............................................11
Procedure.................................................................................................11
Replacing the base cover..............................................13
Procedure................................................................................................ 13
Removing the battery................................................... 14
Prerequisites............................................................................................ 14
Procedure................................................................................................ 14
Replacing the battery...................................................16
Procedure................................................................................................16
Post-requisites......................................................................................... 16
Removing the hard drive...............................................17
Prerequisites............................................................................................ 17
Procedure................................................................................................ 17
Replacing the hard drive...............................................19
Procedure................................................................................................19
Post-requisites......................................................................................... 19
3
Removing the memory modules...................................20
Prerequisites........................................................................................... 20
Procedure............................................................................................... 20
Replacing the memory modules................................... 22
Procedure................................................................................................22
Post-requisites........................................................................................ 23
Removing the wireless card..........................................24
Prerequisites............................................................................................24
Procedure................................................................................................24
Replacing the wireless card..........................................26
Procedure............................................................................................... 26
Post-requisites.........................................................................................27
Removing the coin-cell battery.................................... 28
Prerequisites............................................................................................28
Procedure................................................................................................28
Replacing the coin-cell battery.................................... 30
Procedure............................................................................................... 30
Post-requisites........................................................................................ 30
Removing the power-adapter port................................31
Prerequisites............................................................................................ 31
Procedure................................................................................................ 31
Replacing the power-adapter port............................... 33
Procedure................................................................................................33
Post-requisites........................................................................................ 33
4
Removing the power-status light board....................... 34
Prerequisites............................................................................................34
Procedure................................................................................................34
Replacing the power-status light board........................36
Procedure............................................................................................... 36
Post-requisites........................................................................................ 36
Removing the processor fan.........................................37
Prerequisites............................................................................................37
Procedure................................................................................................37
Replacing the processor fan.........................................40
Procedure............................................................................................... 40
Post-requisites........................................................................................ 40
Removing the video-card fan........................................41
Prerequisites............................................................................................ 41
Procedure................................................................................................ 41
Replacing the video-card fan....................................... 44
Procedure................................................................................................44
Post-requisites........................................................................................ 44
Removing the heat sink................................................45
Prerequisites........................................................................................... 45
Procedure............................................................................................... 46
Replacing the heat sink................................................48
Procedure............................................................................................... 48
Post-requisites........................................................................................ 48
5
Removing the speakers................................................49
Prerequisites........................................................................................... 49
Procedure............................................................................................... 49
Replacing the speakers.................................................51
Procedure................................................................................................ 51
Post-requisites......................................................................................... 51
Removing the display assembly....................................52
Prerequisites........................................................................................... 52
Procedure............................................................................................... 52
Replacing the display assembly....................................55
Procedure............................................................................................... 55
Post-requisites........................................................................................ 55
Removing the system board.........................................56
Prerequisites........................................................................................... 56
Procedure................................................................................................57
Replacing the system board.........................................59
Procedure............................................................................................... 59
Post-requisites........................................................................................ 59
Removing the palm rest and keyboard assembly..........60
Procedure............................................................................................... 60
Procedure............................................................................................... 60
Replacing the palm rest and keyboard assembly.......... 63
Procedure............................................................................................... 63
Post-requisites........................................................................................ 63
6
Flashing the BIOS........................................................ 64
7
Before working inside your computer
NOTE: The images in this document may dier from your computer
depending on the conguration you ordered.
Before you begin
1 Save and close all open les and exit all open applications.
2 Shut down your computer.
The shut-down instruction varies depending on the operating system installed on
your computer.
– Windows 10: Click Start → Power → Shut down.
– Windows 8.1: On the Start screen, Click the power icon → Shut down.
– Windows 7: Click Start → Shut down.
NOTE: If you are using a dierent operating system, see the
documentation of your operating system for shut-down instructions.
3 Disconnect your computer and all attached devices from their electrical outlets.
4 Disconnect all attached network devices and peripherals, such as keyboard,
mouse, and monitor, from your computer.
5 Remove any media card and optical disc from your computer, if applicable.
Safety instructions
Use the following safety guidelines to protect your computer from potential damage
and ensure your personal safety.
WARNING: Before working inside your computer, read the safety
information that shipped with your computer. For more safety best
practices, see the Regulatory Compliance home page at www.dell.com/
regulatory_compliance.
8
WARNING: Disconnect all power sources before opening the computer
cover or panels. After you nish working inside the computer, replace all
covers, panels, and screws before connecting to the electrical outlet.
CAUTION: To avoid damaging the computer, ensure that the work surface is
at and clean.
CAUTION: To avoid damaging the components and cards, handle them by
their edges, and avoid touching pins and contacts.
CAUTION: You should only perform troubleshooting and repairs as
authorized or directed by the Dell technical assistance team. Damage due to
servicing that is not authorized by Dell is not covered by your warranty. See
the safety instructions that shipped with the product or at www.dell.com/
regulatory_compliance.
CAUTION: Before touching anything inside your computer, ground yourself
by touching an unpainted metal surface, such as the metal at the back of
the computer. While you work, periodically touch an unpainted metal surface
to dissipate static electricity, which could harm internal components.
CAUTION: When you disconnect a cable, pull on its connector or on its pull
tab, not on the cable itself. Some cables have connectors with locking tabs
or thumb-screws that you must disengage before disconnecting the cable.
When disconnecting cables, keep them evenly aligned to avoid bending any
connector pins. When connecting cables, ensure that the ports and
connectors are correctly oriented and aligned.
CAUTION: Press and eject any installed card from the media-card reader.
Recommended tools
The procedures in this document may require the following tools:
• Phillips screwdriver #1
• Plastic scribe
9
After working inside your computer
CAUTION: Leaving stray or loose screws inside your computer may severely
damage your computer.
1 Replace all screws and ensure that no stray screws remain inside your computer.
2 Connect any external devices, peripherals, or cables you removed before working
on your computer.
3 Replace any media cards, discs, or any other parts that you removed before
working on your computer.
4 Connect your computer and all attached devices to their electrical outlets.
5 Turn on your computer.
10
Removing the base cover
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Close the display and turn the computer over.
2 Loosen the captive screws that secure the base cover to the palm-rest
assembly.
3 Remove the screws that secure the base cover to the palm-rest assembly.
4 Using a plastic scribe, pry the base cover from the palm-rest assembly.
www.dell.com/
11
5 Lift the base cover o the computer.
1 screws (6) 2 base cover
3 captive screws (4) 4 plastic scribe
12
Replacing the base cover
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Align the tabs on the base cover with the slots on the palm-rest assembly and
snap the base cover into place.
2 Replace the screws that secure the base cover to the palm-rest assembly.
3 Tighten the captive screws that secure the base cover to the palm-rest
assembly.
www.dell.com/
13
Removing the battery
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Prerequisites
Remove the base cover.
Procedure
1 Remove the screws that secure the battery to the palm-rest assembly.
2 Turn the battery over.
www.dell.com/
1 screws (5) 2 battery
14
3 Disconnect the battery cable from the battery.
1 battery cable 2 battery
4 Turn the computer over, open the display, and press the power button for ve
seconds to ground the system board.
15
Replacing the battery
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Connect the battery cable to the battery.
2 Turn the battery over and align the screw holes on the battery with the screw
holes on the palm-rest assembly.
3 Replace the screws that secure the battery to the palm-rest assembly.
Post-requisites
Replace the base cover.
www.dell.com/
16
Removing the hard drive
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
CAUTION: Hard drives are fragile. Exercise care when handling the hard
drive.
CAUTION: To avoid data loss, do not remove the hard drive while the
computer is in sleep or on state.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
Procedure
1 Remove the screws that secure the hard-drive assembly to the palm-rest
assembly.
www.dell.com/
17
2 Slide and lift the hard-drive assembly o the palm-rest assembly.
1 screws (4) 2 hard-drive assembly
3 Remove the screws that secure the hard-drive bracket to the hard-drive.
4 Lift the hard-drive bracket o the hard drive.
18
1 hard-drive bracket 2 screws (4)
3 hard drive
Replacing the hard drive
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
CAUTION: Hard drives are fragile. Exercise care when handling the hard
drive.
Procedure
1 Align the screw holes on the hard-drive bracket with the screw holes on the hard
drive.
2 Replace the screws that secure the hard-drive bracket to the hard-drive.
3 Slide the hard-drive assembly into the slot on the palm-rest assembly.
4 Replace the screws that secure the hard-drive assembly to the palm-rest
assembly.
Post-requisites
www.dell.com/
1 Replace the battery.
2 Replace the base cover.
19
Removing the memory modules
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
Procedure
1 Peel o the mylar tape from the memory modules.
www.dell.com/
20
1 mylar tape
2 Use your ngertips to carefully spread apart the securing clips on each end of
the memory-module slot until the memory module pops up.
3 Remove the memory module from the memory-module slot.
1 securing clips (4) 2 memory-module slot (2)
3 memory modules (2)
For video instruction on removing the wireless card click here.
21
Replacing the memory modules
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Align the notch on the memory module with the tab on the memory-module slot.
www.dell.com/
22
2 Slide the memory module rmly into the slot at a 45-degree angle and press the
memory module down until it clicks into place.
NOTE: If you do not hear the click, remove the memory module and
reinstall it.
1 memory modules (2) 2 securing clips (4)
3 memory-module slot (2) 4 notch
5 tab
3 Adhere the mylar tape over the memory modules.
Post-requisites
1 Replace the battery.
2 Replace the base cover.
23
Removing the wireless card
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
Procedure
1 Disconnect the antenna cables from the wireless card.
2 Remove the screw that secures the wireless card to the system board.
www.dell.com/
24
3 Slide and remove the wireless card from the wireless-card slot.
1 wireless-card slot 2 wireless card
3 antenna cables 4 screw
For video instruction on removing the wireless card click here.
25
Replacing the wireless card
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Align the notch on the wireless card with the tab on the wireless-card slot.
2 Slide the wireless card at an angle into the wireless-card slot.
3 Press the other end of the wireless card down and replace the screw that
secures the wireless card to the system board.
www.dell.com/
26
4 Connect the antenna cables to the wireless card.
The following table provides the antenna-cable color scheme for the wireless
card supported by your computer:
Table 1. Antenna-cable color scheme
Connectors on the wireless card Antenna-cable color
Main (white triangle) White
Auxiliary (black triangle) Black
Post-requisites
1 Replace the battery.
2 Replace the base cover.
27
Removing the coin-cell battery
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
CAUTION: Removing the coin-cell battery resets the BIOS setup program’s
settings to default. It is recommended that you note the BIOS setup
program’s settings before removing the coin-cell battery.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
Procedure
1 Lift the mylar tape o the coin-cell battery.
www.dell.com/
28
2 Using a plastic scribe, pry the coin-cell battery out of the battery socket.
1 mylar tape 2 plastic scribe
3 coin-cell battery
29
Replacing the coin-cell battery
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 With the positive-side facing up, snap the coin-cell battery into the battery
socket.
2 Adhere the mylar tape over the coin-cell battery.
Post-requisites
1 Replace the battery.
2 Replace the base cover.
www.dell.com/
30
Removing the power-adapter port
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
Procedure
1 Disconnect the power-adapter port cable from the system board.
www.dell.com/
31
2 Using a plastic scribe, pry the power-adapter port out of the socket on the palm-
rest assembly.
1 power-adapter port 2 plastic scribe
3 power-adapter port cable
32
Replacing the power-adapter port
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Place the power-adapter port in its socket on the palm-rest assembly.
2 Connect the power-adapter port cable to the system board.
Post-requisites
1 Replace the battery.
2 Replace the base cover.
www.dell.com/
33
Removing the power-status light board
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
Procedure
1 Lift the latch and disconnect the power-light board cable from the power-light
board.
2 Remove the screws that secure the power-light board to the palm-rest assembly.
www.dell.com/
34
3 Lift the power-light board o the palm-rest assembly.
1 screws (2) 2 latch
3 power-light board cable 4 power-light board
35
Replacing the power-status light board
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Align the screw holes on the power-light board with the screw holes on the
palm-rest assembly.
2 Replace the screws that secure the power-light board to the palm-rest assembly.
3 Connect the power-light board cable to the power-light board and press down
on the latch to secure the cable.
Post-requisites
1 Replace the battery.
2 Replace the base cover.
www.dell.com/
36
Removing the processor fan
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
Procedure
1 Disconnect the display cable from the system board.
www.dell.com/
37
2 Note the display-cable routing and remove the display cable from the routing
guides on the fan.
1 processor fan 2 display cable
3 Lift the mylar tape and disconnect the processor-fan cable from the system
board.
4 Remove the screws that secure the processor fan to the system board.
38
5 Lift the processor fan o the system board.
1 screws (2) 2 processor fan
3 processor-fan cable 4 mylar tape
39
Replacing the processor fan
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Connect the processor-fan cable to the system board and adhere the mylar tape.
2 Align the screw holes on the processor fan with the screw holes on the system
board.
3 Replace the screws that secure the processor fan to the system board.
4 Route the display cable and connect it to the system board.
Post-requisites
1 Replace the battery.
2 Replace the base cover.
www.dell.com/
40
Removing the video-card fan
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
Procedure
1 Disconnect the antenna cables from the wireless card.
www.dell.com/
41
2 Note the antenna-cable routing and remove the antenna cables from the routing
guides on the video-card fan.
1 video-card fan 2 wireless card
3 antenna cables
3 Disconnect the video-card fan cable from the system board.
4 Remove the screws that secure the video-card fan to the system board.
42
5 Lift the video-card fan o the system board.
1 screws (2) 2 video-card fan
3 video-card fan cable
43
Replacing the video-card fan
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Align the screw holes on the video-card fan with the screw holes on the system
board.
2 Replace the screws that secure the video-card fan to the system board.
3 Connect the video-card fan cable to the system board.
4 Route the antenna cables and connect them to the wireless card.
Post-requisites
1 Replace the battery.
2 Replace the base cover.
www.dell.com/
44
Removing the heat sink
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
WARNING: The heat sink may become hot during normal operation. Allow
sucient time for the heat sink to cool before you touch it.
CAUTION: For maximum cooling of the processor, do not touch the heat
transfer areas on the heat sink. The oils in your skin can reduce the heat
transfer capability of the thermal grease.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
www.dell.com/
45
Procedure
1 Peel o the mylar tape from the memory modules.
1 mylar tape
2 Loosen the captive screws that secure the heat sink to the system board.
46
3 Lift the heat sink o the system board.
1 heat sink 2 captive screws (6)
47
Replacing the heat sink
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
CAUTION: Incorrect alignment of the heat sink can damage the system
board and processor.
NOTE: The original thermal grease can be reused if the original system
board and heat sink are reinstalled together. If either the system board or
the heat sink is replaced, use the thermal pad provided in the kit to ensure
that thermal conductivity is achieved.
Procedure
1 Align the captive screws on the heat sink with the screw holes on the system
board.
2 Tighten the captive screws that secure the heat sink to the system board.
3 Adhere the mylar tape over the memory modules.
www.dell.com/
Post-requisites
1 Replace the battery.
2 Replace the base cover.
48
Removing the speakers
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
Procedure
1 Disconnect the speaker cable from the system board.
www.dell.com/
49
2 Note the speaker-cable routing and lift the speakers, along with the speaker
cable, o the palm-rest assembly.
1 speaker cable 2 left speaker
3 right speaker
50
Replacing the speakers
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Route the speaker cable and, using the alignment posts on the palm rest, place
the speakers in position.
2 Connect the speaker cable to the system board.
Post-requisites
1 Replace the battery.
2 Replace the base cover.
www.dell.com/
51
Removing the display assembly
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
Procedure
1 Disconnect the antenna cables from the wireless card.
2 Note the antenna-cable routing and remove them from the routing guides on the
video-card fan.
3 Disconnect the display cable from the system board.
www.dell.com/
52
4 Note the display-cable routing and remove the display cable from the routing
guides on the processor fan.
1 wireless card 2 antenna cables
3 display cable
5 Open the palm-rest assembly to an angle of 90 degrees.
6 Place the computer at the edge of a table with the display hanging over.
7 Remove the screws that secure the display assembly to the palm-rest assembly.
53
8 Lift the display assembly o the computer.
1 screws (6) 2 hinges (2)
3 display assembly
54
Replacing the display assembly
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Place the palm-rest assembly on the edge of a table with the keyboard facing
down.
2 Align the screw holes on the hinges of the display assembly with the screw holes
on the palm-rest assembly.
3 Replace the screws that secure the display assembly to the palm-rest assembly.
4 Close the display.
5 Route the display cable and connect it to the system board
6 Route the antenna cables and connect them to the wireless card.
Post-requisites
www.dell.com/
1 Replace the battery.
2 Replace the base cover.
55
Removing the system board
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
NOTE: Your computer’s Service Tag is stored in the system board. You must
enter the Service Tag in the BIOS setup program after you replace the
system board.
NOTE: Replacing the system board removes any changes you have made to
the BIOS using the BIOS setup program. You must make the appropriate
changes again after you replace the system board.
NOTE: Before disconnecting the cables from the system board, note the
location of the connectors so that you can reconnect the cables correctly
after you replace the system board.
Prerequisites
1 Remove the base cover.
2 Remove the battery.
3 Remove the hard drive.
4 Remove the video-card fan.
5 Remove the processor fan.
6 Remove the display assembly.
www.dell.com/
56
Procedure
1 Disconnect the touch-pad cable, power-light cable, keyboard-backlight cable,
keyboard cable, power-adapter port cable, speaker cable and battery cable from
the system board.
1 touch-pad cable 2 power-light cable
3 keyboard-backlight cable 4 keyboard cable
5 power-adapter port cable 6 speaker cable
7 battery cable
2 Remove the screws that secure the system board to the palm-rest assembly.
57
3 Starting from the left, gently lift the system board o the palm-rest assembly.
1 screws (7) 2 system board
58
Replacing the system board
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
NOTE: Your computer’s Service Tag is stored in the system board. You must
enter the Service Tag in the BIOS setup program after you replace the
system board.
NOTE: Replacing the system board removes any changes you have made to
the BIOS using the BIOS setup program. You must make the appropriate
changes again after you replace the system board.
Procedure
1 Starting from the right, gently place the system board on the palm-rest
assembly.
2 Align the screw holes on the system board with the screw holes on the palm-rest
assembly.
3 Replace the screws that secure the system board to the palm-rest assembly.
4 Connect the battery cable, speaker cable, power-adapter port cable, keyboard
cable, keyboard-backlight cable, power-light cable and touch-pad cable to the
system board.
www.dell.com/
Post-requisites
1 Replace the display assembly.
2 Replace the processor fan.
3 Replace the video-card fan.
4 Replace the hard drive.
5 Replace the battery.
6 Replace the base cover.
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Removing the palm rest and keyboard assembly
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Remove the base cover.
2 Remove the battery.
3 Remove the hard drive.
4 Remove the wireless card.
5 Remove the memory module(s).
6 Remove the video-card fan.
7 Remove the processor fan.
8 Remove the heat sink.
9 Remove the display assembly.
10 Remove the system board.
www.dell.com/
Procedure
1 Remove the screws that secure the keyboard bracket to the palm-rest assembly.
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2 Lift the keyboard bracket o the palm-rest assembly.
1 screws (5) 2 keyboard bracket
3 Remove the screws that secure the keyboard to the palm-rest assembly.
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4 Lift the keyboard o the palm-rest assembly.
1 screws (22) 2 keyboard
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1 keyboard 2 palm-rest assembly
Replacing the palm rest and keyboard assembly
WARNING: Before working inside your computer, read the safety
information that shipped with your computer and follow the steps in Before
working inside your computer. After working inside your computer, follow
the instructions in After working inside your computer. For more safety best
practices, see the Regulatory Compliance home page at
regulatory_compliance.
Procedure
1 Align the screw holes on the keyboard with the screw holes on the palm-rest
assembly.
2 Replace the screws that secure the keyboard to the palm-rest assembly.
3 Align the screw holes on the keyboard bracket with the screw holes on the palm-
rest assembly.
4 Replace the screws that secure the keyboard bracket to the palm-rest assembly.
Post-requisites
1 Replace the system board.
2 Replace the display assembly.
3 Replace the heat sink.
4 Replace the processor fan.
5 Replace the video-card fan.
6 Replace the memory module(s).
7 Replace the wireless card.
8 Replace the hard drive.
9 Replace the battery.
10 Replace the base cover.
www.dell.com/
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Flashing the BIOS
You may need to ash (update) the BIOS when an update is available or when you
replace the system board.
Follow these steps to ash the BIOS:
1 Turn on your computer.
2 Go to www.dell.com/support.
3 Click Product support, enter the Service Tag of your computer, and then click
Submit.
NOTE: If you do not have the Service Tag, use the auto-detect feature
or manually browse for your computer model.
4 Click Drivers & downloads → Find it myself.
5 Select the operating system installed on your computer.
6 Scroll down the page and expand BIOS.
7 Click Download to download the latest version of the BIOS for your computer.
8 After the download is complete, navigate to the folder where you saved the BIOS
update le.
9 Double-click the BIOS update le icon and follow the instructions on the screen.
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