IBM RS/6000 SP, Maintenance Information

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MAP 0280: 604 or 604e High Node Minimum Configuration
032 (continued)
Ÿ The number ‘888’ or ‘---’ is in the operator panel display.
Is ‘Diagnostic Operating Screen’ or ‘c31’ displayed in the operator panel display?
Yes No
033
The symptom has changed.
– Check for loose cards, cables, and obvious problems. If you do not find a problem, return to Step
001 on page 1-146 and follow the instructions for the new symptom.
034
– Follow the instructions on the display to select your console.
– When the Diagnostics Operating Instructions display, press the Enter key.
– If the terminal type has not been defined or you are IPLing from diag net boot, you must use the Ini-
tialize Terminal option on the FUNCTION SELECTION menu to initialize the AIX operating system envi-
ronment before you can continue with the diagnostics. This is a separate and different operation than
selecting the console display.
– Select Advanced Diagnostics Routines.
– When the DIAGNOSTIC MODE SELECTION menu displays, select System Verification.
– Run the diagnostics for each of the adapters and devices on the test list.
Did you get an SRN?
Yes No
035
One of the adapters or devices you removed is causing the problem.
– Install the adapters and devices one at a time to determine the failing adapter or device. Test the
system after each adapter or device is installed.
– Go to “MAP 0570: End of Call” on page 1-357.
036
– Look at the FRU part numbers associated with the SRN.
Have you exchanged all the FRUs that correspond to the failing function codes?
Yes No
037
– Exchange the FRU with the highest failure percentage that has not been changed.
– Repeat Step 036 until all the FRUs associated with the SRN have been replaced or System
Checkout runs with no trouble found. Run System Checkout after each FRU is exchanged.
– If System Checkout runs without error, go to “MAP 0570: End of Call” on page 1-357.
038
– Go to Step 002 on page 1-147.
039
– Set the circuit breakers to the Off (‘0’) position.
– Record the location of all the internal SCSI devices attached to the SCSI bus you are attempting to IPL
from.
(Step 039 continues)
1-154
RS/6000 SP MAPs