Removing and Replacing the SCSI Backplane Board
The SCSI backplane board is attached to the rear of the disk media housing at the front, right
side of the chassis.
WARNING! Ensure that the server is powered off and all power sources have been disconnected
from the server prior to removing or replacing the SCSI backplane.
Voltages are present at various locations within the server whenever an AC power source is
connected. This voltage is present even when the main power switch is in the off position.
Failure to observe this warning can result in personal injury or damage to equipment.
CAUTION: Failure to properly complete the steps in this procedure may result in erratic server
behavior or server failure. For assistance with this procedure, contact your local HP Authorized
Service Provider.
Observe all ESD safety precautions before attempting this procedure. Failure to follow ESD safety
precautions can result in damage to the server.
Removing the SCSI Backplane Board
To remove the SCSI backplane, follow these steps:
1. If rack mounted, slide the HP server out from the rack until it stops. See “Extending the
Server From the Rack” (page 31).
2. Remove the front bezel. See “Removing the Front Bezel” (page 34).
3. Remove the front cover. See “Removing the Front Cover” (page 35).
4. Remove the top cover. See “Removing the Top Cover” (page 36).
5. Remove the memory extender board. See “Removing the Memory Extender Board” (page 37).
6. Remove the processor extender board. See “Removing the Processor Extender Board”
(page 43).
7. Remove the two disk drives. See “Removing a Hard Disk Drive” (page 77).
8. Unplug the internal SCSI cable(s) from the SCSI backplane board.
9. Unplug the SCSI backplane-to-midplane riser cable from the SCSI backplane.
10. Using your finger, turn the swivel latch on top of the hard disk drive cage to unlatch the
SCSI backplane board from the hard disk cage.
11. Grasp the top edge of the SCSI backplane board and pull up until it releases from the keyway
slots on the back of the disk drive cage.
Removing and Replacing the SCSI Backplane Board 79
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