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 desired
changes again after you replace the system board.
Procedure
1 Replace the coin-cell battery.
2 Replace the heat sink.
3 Replace the wireless card.
4 Insert the ports on the system board into the slots on the computer base
and gently place the system board on the computer base.
5 Align the screw holes on the system board with the screw holes on the
computer base.
6 Replace the screws that secure the system board to the computer base.
7 Slide the I/O-board cable into the connector on the I/O board and press
down the latch to secure the cable.
8 Connect the speaker and front AlienFX LED cables to the system board.
9 Turn the computer over.
10 Connect the processor-fan cable, video-card fan cable, hard-drive cable,
and power-adapter port cable to the system board.
Post-requisites
1 Replace the display assembly.
2 Follow the procedure from step 5 to step 11 in “Replacing the palm rest”.
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