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 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 heat sink.
2 Replace the coin-cell battery.
CAUTION: To avoid damaging the system board, ensure that no
cables are placed under it.
3 Align the screw hole on the system board with the screw hole on the
computer base and place the system board on the computer base.
4 Replace the screw that secures the system board to the computer base.
5 Connect the power-adapter port cable to the system board.
6 Slide the display cable into the connector on the system board and press
down the latch to secure the cable.
7 Adhere the tape that secures the display cable to the system board.
8 Slide the I/O-board cable into the connector on the system board and
press down the latch to secure the cable.
9 Close the display and turn the computer over.
10 Connect the speaker cable to the system board.
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