Dell OptiPlex 9020 (Mid 2013) - Manual (Page 21)

3. Install the:
a) drive cage
b) optical drive
c) front bezel
d) cover
4. Follow the procedures in After Working Inside Your Computer .
Removing the Input/Output (I/O) Panel
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove the:
a) cover
b) optical drive
c) drive cage
d) front bezel
3. Disconnect the I/O panel or FlyWire cable and the audio cable from the system board.
4. Remove the screw that secures the I/O panel to the chassis. Then, slide the I/O panel to release and remove it from
the computer.
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