Dell OptiPlex 7080 Tower, Service Manual

Page: 76 / 99

Steps
1. Lay the computer on the right side.
2. Disconnect the power cables from the connectors on the powered GPU through the cable holder.
3. Unroute the power cable from the retention tab on the cable holder.
4. Press the securing clips on both side of the cable holder and slide the powered GPU cable holder out of the computer.
5. Unroute the cables from the routing guides on the chassis.
6. Remove the three (#6-32) screws that secure the power-supply unit to the chassis.
7. Press the securing clip and slide the power-supply unit away from the back of the chassis.
8. Lift the power-supply unit off the chassis.
Installing the power-supply unit (For systems with
powered GPU)
Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
WARNING: The cables and ports on the back of the power-supply unit are color-coded to indicate the different power
wattage. Ensure that you plug in the cable to the correct port. Failure to do so may result in damaging the power-supply
unit and/or system components.
About this task
The following images indicate the location of the power-supply unit and provides a visual representation of the installation procedure.
76 Disassembly and reassembly