Installing Power Supply Unit - Psu; Power Switch; Removing Power Switch - Dell OptiPlex 5055 Small Form Factor Owner's Manual

Installing power supply unit — PSU
1 Insert the PSU into the slot.
2 Slide the PSU towards the back of the computer until it clicks into place.
3 Replace the screws( 6lbs) to secure the PSU to the computer.
4 Route the PSU cables through the retention clips.
5 Connect the PSU cables to the connectors on the system board.
6 Install the:
a optical drive
b cooling shroud
c 2.5 inch hard drive assembly
d front bezel
e cover
7 Follow the procedure in

Power switch

Removing power switch

1 Follow the procedure in
2 Remove the:
After working inside your computer.
Before working inside your computer.
Disassembly and reassembly 33