HP Integrity Server rx4640 manual Removing and Replacing the Scsi Backplane Board

Removing and Replacing Components

Removing and Replacing the SCSI Backplane Board

Removing and Replacing the SCSI Backplane Board

Use these procedures to remove and replace 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 down 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 could 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 could result in damage to the server.

Removing the SCSI Backplane Board

To remove the SCSI backplane, follow these steps:

Step	1.	If rack mounted, slide the HP server out from the rack until it stops. See “Extending the Server
		from the Rack” on page 39.
Step	2.	Remove the front bezel. See “Removing the Front Bezel” on page 41.
Step	3.	Remove the front cover. See “Removing the Front Cover” on page 42.
Step	4.	Remove the top cover. See “Removing the Top Cover” on page 43.
Step	5.	Remove the memory extender board. See “Removing the Memory Extender Board” on page 44.
Step	6.	Remove the processor extender board. See “Removing the Processor Extender Board” on page 52.
Step	7.	Remove the two hot-plug disk drives. See “Removing a Hard Disk Drive” on page 90.
Step	8.	Unplug the internal SCSI cable(s) from the SCSI backplane board.
Step	9.	Unplug the SCSI backplane-to-midplane riser cable from the SCSI backplane.

Step 10. Using your finger, turn the swivel latch on top of the hot-plug hard disk drive cage to unlatch the SCSI backplane board from the hard disk cage.

Step 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 hot-plug disk drive cage.

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