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Step 3
Try to boot and run standalone diagnostics against the system, particularly against the
intended boot device.
If diagnostics boot successfully:
1. Go to the Task Selection Menu and select Display Configuration and Resource List.
If the intended boot device is not listed, go to "MAP 0290: Missing Resource
Problem Resolution" in the RS/6000 and Eserver pSeries Diagnostic Information
for Multiple Bus Systems.
2. If an SRN, not an 8-digit error code, is reported, go to the RS/6000 and Eserver
pSeries Diagnostic Information for Multiple Bus Systems manual.
3. If the diagnostics are successful, it may be necessary to perform an operating
system-specific recovery process, or reinstall the operating system.
If diagnostics do not boot successfully:
1. Verify proper SCSI bus termination.
2. Check SCSI cabling.
3. It is possible that another attached SCSI device is causing the problem. Do the
following:
a. Disconnect the signal and power cables from the disk drive cage backplane.
b. Disconnect the disk drive(s) in the disk drive cage from the backplane.
c. Disconnect the signal and power cables from any other SCSI devices attached
d. Try to boot the standalone diagnostics again.
e. If you are still unable to load standalone diagnostics, go to "Step 4."
f. If standalone diagnostics load, one of the disconnected devices is causing the
Step 4
It is possible that another installed adapter is causing the problem. Do the following:
1. Remove all installed adapters except the one the CD-ROM drive is attached to and
the one used for the console.
2. Try to boot the standalone diagnostics again.
3. If unable to load standalone diagnostics, go to "Step 5" on page 104.
4. If standalone diagnostics load, reinstall adapters (and attached devices as
applicable) one at a time and retry the boot operation until the problem recurs. Then
replace the adapter or device that caused the problem. (The system board can also
cause the device or adapter to fail.) Go to "MAP 410: Repair Checkout" in RS/6000
and Eserver pSeries Diagnostic Information for Multiple Bus Systems.
to the SCSI adapter that the CD-ROM drive is attached to.
problem. Reconnect the devices one at a time and retry the boot operation until
the problem recurs and replace the device that caused the problem. (If the
problem appears to be one of the disk drives in the disk drive cage, be aware it
could be either the disk drive or the backplane.) Go to "MAP 410: Repair
Checkout" in RS/6000 and Eserver pSeries Diagnostic Information for Multiple
Bus Systems.
Chapter 4. Checkpoints
103
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