IBM 7026-H80 - RS/6000 - 256 MB RAM Service Manual page 132

Service guide
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Step 1540-1
1. Ensure that the diagnostics and the operating system are shut down.
2. Turn off the power.
3. Select slow boot mode (select disable fast boot) on the system power control menu
from the service processor main menu.
4. Turn on the power to boot standalone diagnostics from CD.
Does the primary I/O drawer power come on and stay on?
NO
YES
5. Insert the diagnostic CD-ROM into the CD-ROM drive.
Does the CD-ROM appear to operate correctly?
NO
YES
Step 1540-2
1. When the keyboard indicator is displayed (the word keyboard), press the 5 key on
the system console.
2. Enter the appropriate password when you are prompted to do so.
Is the Please define the System Console screen displayed?
NO
YES
Step 1540-3
The system is unable to boot standalone diagnostics.
Check the Service Processor error log and the primary I/O drawer operator panel for
additional error codes resulting from the slow boot in step 1540-1.
Did the slow boot generate a different error code than the one that originally sent
you to MAP 1540?
YES
NO
The boot attempts that follow will attempt to get the Please define system console
prompt on the system console. Ignore any codes that may appear on the operator
panel unless stated otherwise.
114
Service Guide
Go to "Step 1540-4" on page 116.
Go to step 5.
Go to "Boot Problems and Concerns" on page 159.
Go to "Step 1540-2".
Go to "Step 1540-3".
Go to "Step 1540-10" on page 120.
Restore fast boot mode (select enable fast boot) on the system power control
menu from the service processor main menu, go to "Checkpoint and Error
Code Index" on page 165 and follow the actions for the new error code.
Continue "Step 1540-3" below.

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