IBM xSeries 380, Hardware Maintenance Manual

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Hardware Maintenance Manual: xSeries 380
Error log viewer
AMIDiag allows you to display the error log while still running AMIDiag. The
AMIDiag error log contains all diagnostic errors that AMIDiag has found during the
current AMIDiag session. The error log viewer offers some text search capability.
To display the error log, select Display Error Log File on the AMIDiag Options menu.
Enter the name of the error log file. The default error log filename is AMIDIAG.LOG.
The AMIDiag error log file will be displayed.
You can access Help for more information about an error. To do so, browse to the
desired error in the error window (on the right side of the screen) and press <F1>.
System diagnostics
The following screen appears when System is selected from the AMIDiag Main Menu:
Note: Each test on the System menu can generate error codes.
Processor test
The processor test makes sure that the CPUs are functioning properly. The processor
test includes:
• Basic Functionality Test
• Processor Speed Test
• CPU Mode Switching Test
• CPU Compatibility Test
• Coprocessor Test
Basic functionality test: The basic functionality test makes sure that the CPU(s) in the
computer are operating correctly and efficiently in all address modes.
Select Processor Test from the System Board menu and press <Enter>.
Processor Speed Test: This test determines and displays the CPU clock speed. The
screen displays the expected processor speed and the actual CPU clock speed, not the
speed index displayed by many benchmark programs. The CPU speed is determined
by measuring the time taken to execute a specific instruction. The time calculation
uses a separate clock source with a known frequency. The effects of cache memory
and prefetch queues are disregarded in this calculation.