Installing The Power Supply; Removing The Coin-Cell Battery - Dell OptiPlex 3020 Owner's Manual

7. Lift the power supply out of the computer.

Installing the Power Supply

1. Place the power supply in the chassis and slide towards the back of the computer to secure it.
2. Tighten the screws securing the power supply to the back of the computer.
3. Connect the 4-pin and 8–pin power cables to the system board.
4. Thread the power cables into the chassis clips.
5. Install:
a) drive cage
b) optical drive
c) front bezel
d) cover
6. Follow the procedures in After Working Inside Your Computer.

Removing the Coin-Cell Battery

1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the:
Disassembly and reassembly 21