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Chapter 4 75
4 Test Controller
The Test Controller is an EEPROM-based utility that provides the
environment for executing the offline diagnostic tests. It is controlled
through parameters stored in the NVRAM on the Utilities board. The
Test Controller reads these parameters to determine its execution mode,
the number processors to test, which SMACs to include in the testing,
which subtests to run, and other diagnostic test-specific information.