Installing The Power Supply Unit (Psu); Removing The Power Switch - Dell OptiPlex 7040-Small Form Factor Owner's Manual

Installing the power supply unit (PSU)

Steps
1. Insert the PSU in the chassis and slide it toward the back of the computer to secure it.
2. Tighten the screws to secure the PSU to the back of the computer.
3. Route the PSU cables through the retention clips.
4. Connect the power cables to the system board.
5. Install the:
a. fan duct
b. optical drive
c. hard drive assembly
d. front bezel
e. cover
6. Follow the procedure in

Removing the power switch

Steps
1. Follow the procedure in
2. Remove the:
a. cover
b. front bezel
c. hard drive assembly
d. optical drive
e. power supply unit
3. To remove the power switch:
a. Disconnect the power switch cable from the system board [1].
b. Press the power switch retention tabs and remove it from the chassis [2] [3].
20 Removing and installing components
After Working Inside Your
Before Working Inside Your
Computer.
Computer.