support.dell.com Troubleshooting 8-17
7. Tighten the captive screws to secure the power supply in its slot.
8. Connect the AC power cable to the power input receptacle on the back panel of
the power supply.
9. Turn on the power supply by pressing the power supply rocker switch to ON (|).
Observe that the green LED on the back of the power supply is on and that the
amber fault LED stays off.