Dell Latitude 5430 Rugged - Rear I;O Board; Removing the Rear I;O Board

Steps
1. Align the heat-sink screw holes with the system board and place it on the system chassis.
2. Replace the four (M2x6) and three (M2x3.5) screws (in sequential order, 1->2->3->4->5->6->7) to secure the heat-sink to
the system board.
Next steps
1. Install the dock I/O board.
2. Install the WLAN.
3. Install the Wi-Fi I/O board.
4. Install the base cover.
5. Install the primary M.2 2280 solid state drive or primary M.2 2230 solid state drive.
6. Install the battery.
7. Follow the procedure in after working inside your computer.
Rear I/O board
Removing the rear I/O board
Prerequisites
1. Follow the procedure in before working inside your computer.
2. Remove the battery.
3. Remove the primary M.2 2280 solid state drive or primary M.2 2230 solid state drive.
4. Remove the base cover.
About this task
The following images indicate the location of the rear I/O board and provide a visual representation of the removal procedure.
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Removing and installing components