Removing the SAS Backplane Board
To remove the SAS backplane board, follow these steps:
1. Power off the server and disconnect the power cables. See “Powering Off the Server”
(page 90).
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. Slide the SAS drives and fillers approximately two inches out of the drive bays. See “Removing
a Hot-Pluggable Disk Drive” (page 188).
6. Disconnect the SAS cables from the connectors on the SAS backplane board.
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,
match each cable with the appropriate socket on the SAS backplane board. If the cables are
mismatched, the server will not function correctly.
7. Remove the interconnect board air baffle. See “Removing the Interconnect Board” (page 245).
8. Push down on the release lever to disengage the SAS backplane board from the chassis.
CAUTION: Do not use the release lever as a handle to remove the SAS backplane board.
Failure to observe this caution can result in damage to the release lever and the SAS backplane
board.
9. Use the sheet metal bracket that surrounds the SAS backplane board as a handle and slide
the board to the left to unplug it from the socket on the interconnect board.
10. Pull the board straight back toward the rear of the chassis, and lift the board out of the chassis.
Removing and Replacing the SAS Backplane Board 243
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