Replacing The System Board; Procedure; Post-Requisites - Dell Latitude 12–7275 Owner's Manual

Replacing the system board

WARNING: Before working inside your tablet, read the safety information that shipped with your
tablet and follow the steps in
follow the instructions in
Regulatory Compliance home page at www.dell.com/regulatory_compliance.
NOTE: Your tablet'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. Align the screw holes on the system board with the screw holes on the back-cover assembly.
2. Replace the screws that secure the system board to the back-cover assembly.
3. Align the screw holes on the I/O bracket with the screw holes on the system board.
4. Replace the screws that secure the I/O bracket to the system board.
5. Slide in the headset-port cable, power-button board cable and display assembly cable into the
respective connectors on the system board and press down the latches to secure the cables.
6. Connect the speaker cables, camera cables, microphone cable, and coin-cell battery cable to the
respective connectors on the system board.

Post-requisites

1. Replace the wireless
2. Replace the solid-state
3. Replace the battery.
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Before working inside your
After working inside your
card.
drive.
tablet. After working inside your tablet,
tablet. For more safety best practices, see the
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