Installing The Power-Supply Unit - Dell OptiPlex 5090 Small Form Factor Service Manual

Steps
1. Remove the optical-drive SATA cables from the retention clip on the support bracket.
2. Remove the two screws (M6X32) and slide the support bracket out from the slot.
3. Disconnect and unroute the power-supply cable from the routing guides on the chassis.
4. Remove the three screws (M6X32) that secure the power-supply unit to the chassis.
5. Press down on the securing clip to release the power supply from the chassis.
6. Slide and lift the power supply from its slot on the chassis.

Installing the power-supply unit

Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the power-supply unit and provides a visual representation of the installation
procedure.
52 Removing and installing components