Dell OptiPlex 7020 (Mid 2014) - Manual (Page 22)

Removing the Power Switch
1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the:
a. cover
b. front bezel
c. optical drive
d. drive cage
3. Disconnect the power-switch cable from the system board.
4. Press the clips on both side of the power switch to release it from the chassis and remove the power
switch along with its cable from the computer.
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