- Notes, cautions, and warnings
- Working inside your computer
- Removing and installing components
- Software
- System setup
- Troubleshooting
- Getting help and contacting Dell
OptiPlex 7090 Small Form Factor Service Manual
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.
Steps
- Align and place the power-supply unit into the slot on the chassis.
- Slide the power-supply unit into the slot until it clicks in place.
- Replace the three screws (M6X32) to secure the power-supply unit to the chassis.
- Route the power-supply cables through routing guides and connect it to the connectors on the system board.
- Place the support bracket into the slot and secure it with the two screws (M6X32).
- Connect the optical-drive SATA cable through the retention clip on the support bracket.
Next steps
- Install the 2.5-inch hard-drive assembly.
- Install the hard-drive and optical-drive bracket.
- Install the side cover.
- Follow the procedure in after working inside your computer.
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