Dell OptiPlex 9020 (Mid 2013) - Manual (Page 26)

Installing the System Fan
1. Place the system fan in the chassis.
2. Tighten the screws that secure the fan to the chassis.
3. Connect the system fan cable to the system board.
4. Install:
a) drive cage
b) front bezel
c) cover
5. Follow the procedures in After Working Inside Your Computer .
Removing the System Board
1. Follow the procedures in Before Working Inside Your Computer .
2. Remove:
a) cover
b) front bezel
c) drive cage
d) power supply
e) heat sink assembly
f) processor
g) memory
h) WLAN card
i) I/O panel
3. Disconnect all the cables connected to the system board and remove the screws that secure the system board to
the chassis. Lift and remove the system board from the computer.
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