Installing Pcie Expansion Card; Power Supply Unit; Removing Power Supply Unit - Psu - Dell OptiPlex 5055 Tower Owner's Manual

NOTE: To remove the PCIe brackets (2 and 4), push the bracket upwards from the inside of your computer to release it and
then lift the bracket away from your computer.
7 Repeat the steps to remove any additional PCIe expansion cards.

Installing PCIe expansion card

1 Insert the PCIe expansion card to the connector on the system board.
2 Secure the PCIe expansion card by pushing the card retention latch until it clicks into place.
3 Repeat the steps to install any additional PCIe expansion cards.
4 Close the release latch.
5 Close the front panel door.
6 Install the:
a Front bezel
b Back cover
7 Follow the procedure in

Power supply unit

Removing power supply unit – PSU
1 Follow the procedure in
2 Remove the:
a Cover
b Front bezel
3 Open the Front panel
4 To release the PSU:
a Disconnect the PSU cables from the connectors on the system board [1, 2].
b Pull the clips to release the cables from the cable holders [3].
c Unroute the PSU cables from the cable holders [4].
d Remove the screws( 6+/-1) that secure the PSU to the computer [5].
After working inside your
Before working inside your
door.
computer.
computer.
Disassembly and reassembly 27