Chapter 4
Removing and Replacing Components
Removing and Replacing the Midplane Riser Board
95
Removing and Replacing the Midplane Riser Board
The midplane riser board is attached to the main bulkhead in the center 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 midplane riser
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 will 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 Midplane Riser Board
To remove the midplane riser board, 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 3 chassis hot-swap fan units. See “Removing a Hot-Swap Chassis Fan Unit” on page 63.
Step 8. Remove the I/O baseboard assembly. See “Removing the I/O Baseboard” on page 66.
Step 9. Remove the SCSI backplane board. See “Removing the SCSI Backplane Board” on page 93.
Step 10. Unplug the power distribution board power cable and signal cable from the midplane riser board.
Step 11. Unplug the DVD relay board and front panel display board cable from the midplane riser board.
Step 12. Unplug the QuickFind diagnostic board cable from the midplane riser board.
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