Removing And Replacing The Midplane Riser Board; Removing The Midplane Riser Board - HP Integrity rx4640 Service Manual

Removing and Replacing the Midplane Riser Board

The midplane riser board is attached to the main bulkhead in the center of the chassis.
WARNING!
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 can result in personal injury or damage to equipment.
CAUTION:
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 Midplane Riser Board

To remove the midplane riser board, follow these steps:
1. If rack mounted, slide the server out from the rack until it stops. See
From the Rack" (page
2. Remove the front bezel. See
3. Remove the front cover. See
4. Remove the top cover. See
5. Remove the memory extender board. See
6. Remove the processor extender board. See
(page 43).
7. Remove the three chassis hot-swappable fan units. See
Fan Unit" (page
8. Remove the I/O baseboard assembly. See
9. Remove the SCSI backplane board. See
10. Unplug the power distribution board power cable and signal cable from the midplane riser
board.
11. Unplug the DVD relay board and front panel display board cable from the midplane riser
board.
12. Unplug the QuickFind diagnostic board cable from the midplane riser board.
NOTE:
riser board.
13. Using a torx #15 driver, remove the five torx screws attaching the midplane riser board to
the chassis.
14. Grasp the top edge of the midplane riser board and lift straight up to release it from the
keyway slots on the chassis.
15. Pull the riser board straight out and up to remove the it from the chassis.
how to remove the midplane riser board.
Ensure that the server is powered off and all power sources have been disconnected
Failure to properly complete the steps in this procedure will result in erratic server
31).
"Removing the Front Bezel" (page
"Removing the Front Cover" (page
"Removing the Top Cover" (page
53).
At this point, all cables and connectors should be unplugged from the midplane
36).
"Removing the Memory Extender Board" (page
"Removing the Processor Extender Board"
"Removing a Hot-Swappable Chassis
"Removing the I/O Baseboard" (page
"Removing the SCSI Backplane Board" (page
Removing and Replacing the Midplane Riser Board
"Extending the Server
34).
35).
56).
Figure 4-39 shows
37).
79).
81