Troubleshooting
Selftest Failures
In the following tables, shaded LEDs indicate that
they are lit.
Table 12
LED Error Codes (C100/110)
LED Value
Chassis Code
N/A
7500
7501, 7502
7000 - 7D0A
1030 - 4071
5000 - 500F
8000 - 8FFF
CD00 - CDff*
CD1E
CDEF
CDD0
Any
INIT/TEST
code
74
RS-232
Range
Reserved
No memory found FAULT
Likely cause: SIMMs or processor
board
Not enough memory found FAULT
Likely cause: SIMMS
Processor board/memory FAULT
Likely cause: processor board
Processor board FAULT
I/O System FAULT
*Except backplane faults listed below
Backplane FAULT
INITIALIZATION and TESTING
Note: These two LED codes will alter-
nate to indicate forward progress: 0111,
1000, 0111,...
Description