HP 9000 rp4440 - Midplane Riser Board Handling

Chapter 4
Removing and Replacing Components
Midplane Riser Board
94
Midplane Riser Board
The midplane riser board is attached to the main bulkhead in the center of the chassis.
WARNING Ensure that the system 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 system behavior
or system 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, perform the following steps:
Step 1. If rack mounted, slide the HP Server out from the rack until it stops. (Refer to the hp9000 rp4440
Installation Guide for additional information.)
Step 2. Remove the front bezel. (Refer to “Front Bezel” on page 38.)
Step 3. Remove the front and top covers. (Refer to “Front and Top Covers” on page 39.)
Step 4. Remove the memory extender board. (Refer to “Memory Extender Board” on page 45.)
Step 5. Remove the processor extender board. (Refer to “Processor Extender Board” on page 53.)
Step 6. Remove the 3 chassis hot-swap fan units. (Refer to “Hot-Swap Chassis Fan Unit” on page 63.)
Step 7. Remove the I/O baseboard assembly. (Refer to “I/O Baseboard Assembly” on page 67.)
Step 8. Remove the SCSI backplane board. (Refer to “SCSI Backplane Board” on page 91.)
Step 9. Unplug the power distribution board power cable and signal cable from the midplane riser board.
Step 10. Unplug the DVD relay board and front panel display board cable from the midplane riser board.
Step 11. Unplug the QuickFind diagnostic board cable from the midplane riser board.
NOTE At this point, all cables and connectors should be unplugged from the midplane riser
board.