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Check the ST1 line in the self-test results to see that all CPU and
1
memory modules passed self-test. Note that on a system with dual-
processor modules, failing processors are disabled and appear in the
ST1 line. Were both processors to fail on a dual-processor module,
nothing appears on the ST1 line. There is minimal TLSB traffic dur-
ing these tests.
Check the ST2 line to see that memory and the CPU(s) passed their
2
interaction tests and check the ST3 line to see that all three types of
modules on the TLSB passed their tests.
Check the C0 through C10 lines to determine which modules on the
3
PCI I/O subsystem passed self-test. The example shows two PCIs, one
internal to the KFTIA in slot 8 and the other connected to the KFTIA
through a hose. (The maximum number of PCI I/O subsystems is
eleven.)
NOTE: If any module is badly broken on any bus, the console may not get a
response or be able to read whether a device passed self-test. Under
such conditions, self-test does not indicate a failure but instead in-
dicates that the slot is empty.
Diagnostics and Utilities 7-9
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