Dell Alienware 15 R3 Service Manual - Page 69

Replacing the system board, Procedure

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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 www.dell.com/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 Replace the heat-sink assembly. 2 Align the screw holes on the system board with the screw holes on the palm- rest assembly. CAUTION: Make sure that no cables are under the system board. 3 Replace the six screws (M2.5x5) that secure the system-board assembly to the palm-rest assembly. 4 Align the screw hole on the USB Type-C port bracket with the screw hole on the system board. 5 Replace the screw (M2.5x5) that secures the USB Type-C port bracket to the system board. 6 Slide the I/O-board cable into the connector on the I/O-board and close the latch to secure the cable. 7 Adhere the tape that secures the I/O-board cable to the I/O board. 8 Slide the touch-pad cable and macro-keys backlight cable into the connectors on the system board and close the latches to secure the cables. 9 Connect the power-adapter port cable and speaker cable to the system board. 69

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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
www.dell.com/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
Replace the
heat-sink assembly
.
2
Align the screw holes on the system board with the screw holes on the palm-
rest assembly.
CAUTION: Make sure that no cables are under the system board.
3
Replace the six screws (M2.5x5) that secure the system-board assembly to
the palm-rest assembly.
4
Align the screw hole on the USB Type-C port bracket with the screw hole on
the system board.
5
Replace the screw (M2.5x5) that secures the USB Type-C port bracket to the
system board.
6
Slide the I/O-board cable into the connector on the I/O-board and close the
latch to secure the cable.
7
Adhere the tape that secures the I/O-board cable to the I/O board.
8
Slide the touch-pad cable and macro-keys backlight cable into the
connectors on the system board and close the latches to secure the cables.
9
Connect the power-adapter port cable and speaker cable to the system
board.
69