HP AB464-9003F, Service Manual

Page: 246 / 355

Removing and Replacing the Interconnect Board
The interconnect board attaches the midplane board to the display board and the SAS backplane
board.
WARNING! Ensure that the system is powered off and all power sources have been
disconnected from the server prior to performing this procedure.
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: Observe all ESD safety precautions before attempting this procedure. Failure to
follow ESD safety precautions can result in damage to the server.
IMPORTANT: System information is stored on the interconnect board. You must write serial
number and model string information to the new interconnect board after installation.
Removing the Interconnect Board
To remove the interconnect board, follow these steps:
NOTE: Use the guide posts located on the chassis and the keyways located on the interconnect
board to help you with the interconnect board removal and replacement procedures.
1. Power off the server and disconnect the power cables. See “Powering Off the Server”
(page 89) .
2. If rack installed, slide the server completely out from the rack. See “Extending the Server
from the Rack” (page 176) .
3. Remove the top cover. See “Removing the Top Cover” (page 178) .
4. Remove the air baffle.
5. Disconnect the USB cable from the connector on the display board.
6. Remove the DVD drive. See “Removing the DVD Drive” (page 202) .
7. Remove the display board. See “Removing the Display Board” (page 240) .
8. Slide the SAS drives and fillers approximately two inches out of the drive bays. See
“Removing a Hot-Pluggable Disk Drive” (page 188) .
CAUTION: When disconnecting the SAS cables, note the labeling on the cables. Both
cables and sockets are clearly marked with the correct channel. When reconnecting these
cables, you must match each cable with the appropriate socket on the SAS core I/O card.
If the cables are mismatched, the server will not reboot.
9. Disconnect the SAS data and power cables from the connectors on the SAS backplanes.
10. Remove the interconnect board air baffle.
a. Insert your finger into the opening on the interconnect board air baffle and pull upward
to release the air baffle from the chassis.
b. Lift the air baffle out of the chassis at an angle.
11. Remove the lower SAS backplane. See “Removing the SAS Backplane Board” (page 244) .
12. Remove the upper SAS backplane. See “Removing the SAS Backplane Board” (page 244) .
13. Insert your fingers into the handle on the interconnect board and push the board toward the
front of the chassis to unplug it from the socket on the midplane board.
14. Lift the interconnect board out of the chassis.
246 Removing and Replacing Server Components