Dell D14S003, Service Manual

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Replacing the system board
NOTE: 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.
Topics:
• Procedure
• Post-requisites
Procedure
1. Align the system board with the slots on the chassis and place the system board in position.
2. Replace the six screws (#6-32xL6.35) that secure the system board to the chassis.
3. Connect the optical-drive data cable, hard-drive data cable, hard-drive and optical-drive power cable, and power-button
cable to their respective connectors on the system board.
4. Rotate the front I/O-bracket towards the chassis.
5. Align the screw hole on the front I/O-bracket with the screw hole on the chassis.
6. Replace the screw (#6-32xL6.35) that secures the front I/O bracket to the chassis.
NOTE: Black screw is used to prevent light leakage.
Post-requisites
1. Replace the thermal cooling assembly .
2. Replace the wireless card .
3. Replace the memory module .
4. Follow the procedure from step 5 to step 8 in “ Replacing the optical drive ”.
5. Replace the front bezel .
6. Replace the computer cover .
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44 Replacing the system board