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4-30 Sun Fire V20z and Sun Fire V40z Servers—User Guide • March 2005
4.5.6 SCSI Backplane Assembly
The following procedure describes how to replace the SCSI backplane assembly.
1. Power off the server, including any attached peripherals, and disconnect the
server from the electrical outlet. If your server includes two power supplies,
ensure that both power cords are disconnected from the electrical outlet.
Refer to “Powering Off the Server and Removing the Cover” on page 4-2.
2. Remove all HDD carriers and the DVD-ROM/Diskette Drive assembly from the
bays on the server front.
All drives and carriers must be disconnected from the SCSI backplane before you
can remove it.
3. Remove the main air baffle (see
FIGURE 4-20).
Lift the rear edge of the baffle, then move it toward the rear of the server to
disengage the hooks on the front edge of the baffle.
FIGURE 4-20 Removing the Main Air Baffle
4. Disconnect the SCSI signal cable and the power cable that connect to the rear side
of the SCSI backplane circuit board (see
FIGURE 4-21):
5. Loosen the two captive screws that secure the SCSI backplane assembly to the
chassis (see
FIGURE 4-21).