Figure 8-16 Replacing The Scsi Backplane - Sun Microsystems Ultra 1 140 Service Manual

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Figure 8-16 Replacing the SCSI Backplane

4. Replace the two screws to secure the backplane to the bracket.
5. Connect the peripheral power cable (P4) to the SCSI backplane
(marked PWR).
See Figure 8-14.
6. Connect the diskette cable (if present) to the SCSI backplane
(marked FLOPPY on the backplane).
7. Replace the hard disk drive assemblies.
See Section 9.1.2, "Replacing a Disk Drive."
Note – If there are two drives, install the drives into their original slots. If this
is not done, the system may fail to boot, or file systems may fail to mount.
8. Replace the bracket into the chassis.
See Section 9.2.4, "Replacing the Bracket into the Chassis."
Major Subassemblies
Disk drive bay
SCSI back plane
slot (4)
Screws
Diskette
cable
8
P4
8-19