Prerequisites
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that are shipped with your product.
Follow the safety guidelines listed in the Safety instructions section.
Follow the procedure listed in the Before working inside your system section:
Turn off the system, including any attached peripherals.
Disconnect the system from the electrical outlet and disconnect the peripherals.
Remove the system cover.
Removing the power supply unit:
Disconnect the P1 and P2 power cables from the power supply unit (PSU) to the system board connectors.
Remove the screws securing the PSU to the chassis.
Press the release tab beside the power supply unit, and slide the PSU towards the front of the system.
Lift the PSU out of the system.
Installing the power supply unit:
Place the power supply unit (PSU) in the chassis and slide it towards the back of the chassis.
Tighten the screws on the back of the chassis to secure the PSU to the chassis.
Connect the P1 and P2 power cables to the system board connectors.
Follow the procedure listed in the After working inside your system section:
Install the system cover.
Place the system upright on a flat, stable surface.
Reconnect the peripherals and connect the system to the electrical outlet.
Turn on the system, including any attached peripherals.
