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Replacing Parts
7. Remove the replacement chassis fan from the shipping container.
8. Connect the chassis fan connector.
9. Line up the tabs of the fan with the openings on the rear panel and snap the fan into place.
10. Replace any accessory boards removed to access the fan.
11. Close the side panel.
12. Replace the external cables and power cord.
13. Power up the server and return it to normal operation.
Power Supply
The power switch on the front panel controls the power supply.
Use the following steps to replace the power supply:
1. If the server is operating, log off all users, back up files, and power down the server.
2. Disconnect the power cord and any external cables connected to the server. If necessary,
label each one to expedite re-assembly.
3. Open the side panel.
4. Disconnect the power supply connections to the FDD and CD-ROM drive.
5. Unplug the power cables (J27 and J28) from the system board.
6. Remove any long PCI cards.
7. Remove the screw in front of the PCI card guide and remove the guide.
8. Unplug the power to the hot swap back plane or from the cold swap power jumper cable.
9. Remove the four screws securing the power supply to the chassis. These are located at the
rear of the chassis. Refer to Figure 5-2.
10. Slide the power supply forward and remove it.
HP ProLiant ML150 Server Operations and Maintenance Guide
5-3
HP CONFIDENTIAL
Codename: Stone Soup Part Number: 343329-001 Last Saved On: 8/14/03 10:30 AM