Service manual

3-24 AlphaServer GS80/160/320 Service Manual
3.5 Running Diagnostics Using the SCM Monitor
If the SRM console gets loaded, the SROM/XSROM diagnostic tests
cannot be run under the console. To run SROM/XSROM diagnostics in
SCM user mode they must be loaded and remain in the CPU’s I-cache or
B-cache. And once XSROM tests are loaded into a CPU’s B-cache,
SROM tests may not be run on it unless the SROM is once again loaded.
SCM examines and deposits require SROM or XSROM code running.
Example 3– 12 Setting Up the Diagnostic Environment and Testing
SCM_E0> show nvram
COM1_PRINT_EN
HP_COUNT 0
.
.
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SROM_MASK ff f
XSROM_MASK ff ff ff ff ff ff ff ff ff 1 0 0
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AUTO_FAULT_RESTART 1
SCM_SIZING_TIME c
SCM_E0> test &pc0 5
Testing. Please wait..CPU Connect Error node 30(response=2e)
SCM_E0> set xsrom_mask none
SCM_E0> sho nvram
ALERT Uninitialized
BAUD 57600
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SROM_MASK fe f
XSROM_MASK 0 0 0 0 0 0 0 0 0 0 0 0
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SCM_CSB_MASTER_ELIGIBLE 1
PERF_MON 0