Removing and Replacing Parts
4-11
S
CSI Backplane Board
Figure 4-10. SCSI Backplane Board Removal
If a PowerEdge Expandable RAID Controller host adapter card is installed in
the computer, you don’t need to turn off the system. Otherwise, turn off the
system.
1. Disconnect the hard-disk drive carrier connectors from the SCSI back-
plane board by sliding each carrier toward the front of the computer
approximately 1 inch.
2. Disconnect all cables from the SCSI backplane board.
3. Unscrew the thumb screw.
4. Disengage the board from the hooks holding the board to the computer
chassis, and lift the board away from the computer.
An insulator (similar to the one for the power-supply paralleling board in
Figure 4-12) is attached to the back of the SCSI backplane board with two
adhesive strips.
SCSI backplane board
hard-disk drive
carrier
thumb screw
hook (10)
