Removing the power-supply unit (For systems with powered GPU)
Prerequisites
NOTE Note the routing of all cables as you remove them so that you can route them correctly while you are replacing the power-supply unit.
About this task
The following images indicate the location of the power-supply unit and provides a visual representation of the removal procedure.
![This image displays the removal of powered GPU cable holder](https://dl.dell.com/topics/optiplex7080_mt_sm/images/GUID-4F2AC4B5-3251-4385-AC32-28911F97DEDD-low.jpg)
![This image displays the unrouting of the power cable](https://dl.dell.com/topics/optiplex7080_mt_sm/images/GUID-10B82616-9D7D-45D1-8B78-75CE1ADD12DB-low.jpg)
![This image displays the removal of PSU](https://dl.dell.com/topics/optiplex7080_mt_sm/images/GUID-CD47B934-DC9A-4D2E-9603-16D17447552F-low.jpg)
Steps
- Lay the computer on the right side.
- Disconnect the power cables from the connectors on the powered GPU through the cable holder.
- Unroute the power cable from the retention tab on the cable holder.
- Press the securing clips on both side of the cable holder and slide the powered GPU cable holder out of the computer.
- Unroute the cables from the routing guides on the chassis.
- Remove the three (#6-32) screws that secure the power-supply unit to the chassis.
- Press the securing clip and slide the power-supply unit away from the back of the chassis.
- Lift the power-supply unit off the chassis.
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