Dell OptiPlex 9020 All In One (Mid 2013) - Manual (Page 15)

Installing the Power and OSD Buttons Board
1. Align and place the power and OSD buttons board on the computer.
2. Connect the cable to the power and OSD buttons board.
3. Install:
a) back cover
b) VESA stand
4. Follow the procedures in After Working Inside Your Computer .
Removing the System-Board Shield
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the:
a) VESA stand
b) back cover
c) VESA mount bracket
3. Remove the screws that secure the system-board shield to the computer. Lift the system-board shield away from
the computer.
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