Dell PowerEdge 800 - Manual (Page 53)

Power Supply
Removing the Power Supply
1. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
2. Remove the bezel. See " Removing the Bezel " in "Troubleshooting Your System."
3. Lay the system on its right side.
4. Remove the cover. See " Removing the Cover " in "Troubleshooting Your System."
5. Disconnect the DC power cables from the following components:
l POWER CONN connector on the backplane board (if applicable)
l PWR CONN and 12V connectors on the system board
l Hard drives or SCSI backplane board
l Diskette drive (if applicable)
l Optical drive (if applicable)
l Tape backup drive (if applicable)
6. Remove the cooling shroud. See " Removing the Cooling Shroud ."
7. Remove the four screws securing the power supply to the back panel. See Figure 6 -5 .
Figure 6-5. Removing the Power Supply
8. Slide the power supply toward the front of the system, and then lift the power supply up and out of the system.
Replacing the Power Supply
1. Lower the power supply into the system and align the mounting holes with the holes on the back panel.
2. Install the four screws securing the power supply to the back panel.
CAUTION: See the Product Information Guide for complete information about safety precautions, working inside the computer, and protecting
against electrostatic discharge.