Dell OptiPlex 9020 (Mid 2013) - Manual (Page 18)

Removing the Power-Switch Board
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove:
a) cover
b) front bezel
c) drive cage
3. Disconnect the power-switch cable from the power-switch board.
4. Remove the screw and pull the power-switch board out of the computer.
Installing the Power-Switch Board
1. Align the power-switch board to the front of the computer and tighten the screw.
2. Connect the power-switch cable to the power-switch board.
3. Install:
a) drive cage
b) front bezel
c) cover
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