Digital Equipment DEC 3000 600 AXP, Информация о сервисе

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NVR Diagnostic
When the diagnostic encounters an error, the error reporting
procedure format is as follows:
>>> T NVR
?? 002 NVR XXXXXXXX
Table 4–8 describes the diagnostic error message and the FRU
that needs to be replaced.
Table 4–8 NVR Error Identification
FRU Code Failing Test Error Code Replace
002 NVR See Chapter 14 I/O module
MEMORY Diagnostic
Overview
The MEMORY diagnostic detects address and data that is stuck
at faults as well as performs ECC testing of memory.
The memory diagnostic is executed when:
• Power-on occurs.
• Console mode is entered and the MEMORY diagnostic
selected.
During power-on, the MEMORY diagnostic:
• Checks the previous memory configuration
• Tests enough memory to load the secondary boot (APB.EXE
for VMS)
All but the lowest 2 MB of memory will be exercised when run
from console mode. Two MB of memory is reserved and is tested
by the SROM code before the console is loaded.
Fault isolation is to the field replaceable unit (FRU).
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