1. Remove the power source from the system.

2. Ground yourself and the computer to the same source of ground.

3. Remove the cover from the system.

4. Locate the power supply.

5. Follow all wiring harnesses from the power supply to their termini, disconnecting each one.

6. Remove any obstructions that appear as if they might hinder removal of the power supply.

7. Locate and remove the machine screws on the outside of the case that that are used to secure the power supply.

8. Pull the power supply out of the case.