Verifying The Jumper Settings - Sun Microsystems SPARC classic Service Manual

9.1.2.1

Verifying the Jumper Settings

The SCSI ID jumpers must be set to SCSI address 3. This is the factory default
setting, but you should verify the jumper settings.
The location of the SCSI ID jumpers depends on the type of drive shipped with your
system.
various types of replacement drives. Note that only one of these illustrations applies
to your hard drive.
To verify the jumper settings on the hard drive:
1. Remove the replacement drive from its protective packaging and set it with the
component side up on the antistatic mat.
You now have access to the drive controller board.
2. Inspect the jumper settings.
a. Determine which illustration among
drive.
b. Compare the jumper settings in the figure to the settings on your drive.
c. If the settings are not the same, change them to match the settings in the figure.
SCSI device
address
WS enable
FIGURE 9-2
9-4 SPARCclassic/SPARCclassic X/SPARCstation LX Service Manual • November 1993
through
FIGURE 9-2
A0
A1
A2
Jumper Settings for 207-Mbyte Drive With Jumpers on the Left-Hand Side
show the jumper locations and settings for the
FIGURE 9-7
FIGURE 9-2
Power
connector
through matches your
FIGURE 9-7
Data connector