IBM RS6000 - 7026 - H70, Service Manual

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MAP 1020: Problem Determination
Purpose of This MAP
Use this MAP to get an error code if you were not provided one by the customer or
you are unable to load diagnostics. If you are able to load the diagnostics, go to
MAP 0020 in the
IBM RS/6000 Diagnostic Information for Multiple Bus Systems.
The Service Processor may have recorded one or more symptoms in its error log. It
is a good idea to examine that error log before proceeding (see Service Processor
System Information Menu).
The Service Processor may have been set by the user to monitor server operations
and to attempt recoveries. You may wish to disable these actions while you diagnose
and service the system. If you disable them, you should make notes of their current
settings for restoration before you leave. Following are the settings of your interest.
Be prepared to record code numbers and use those numbers in the course of
analyzing a problem. Go to “Step 1020-1.”
Step 1020-1
The following steps analyze a failure to load the diagnostic programs.
Note: You are asked questions regarding the operator panel display. You are also
asked to perform certain actions based on displayed POST indicators.
Please be observant of these conditions.
Surveillance From the Service Processor Setup Menu, go to
the Surveillance Setup Menu and disable
surveillance.
Unattended Start From the Service Processor System Power
Control Menu, disable unattended start mode.
Reboot Policy From the System Power Control Menu, go to
the Reboot/Restart Policy Setup Menu and set:
1. Number of reboot attempts to 0 (zero)
2. Use OS-Defined restart policy to No
3. Enable supplemental restart policy to No.
Call Out From the Call-In/Call-Out Setup Menu, go to the
Serial Port Selection Menu and disable call-out
on both serial ports.
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Service Guide