Dell OptiPlex 9010 All In One (Mid 2012) - Manual (Page 27)

b) VESA mount bracket
c) back cover
d) VESA stand
4. Follow the procedures in After Working Inside Your Computer .
Removing the Input/Output 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
d) system-board shield
e) power-supply fan
3. Lift the input/output panel away from the computer.
4. Remove the screws that secure the power connector to the input/output board shield.
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