User`s guide

System Troubleshooting and Diagnostics
5.2 Product Fault Management and Symptom-Directed Diagnosis
Example 5–6 (Cont.) Error Log Entry Indicating Correctable ECC Error
MEMORY ERROR STATUS:
_SIMM MEMORY MODULE: LOCATION 0A
_set = 0
_bank = 0.
ECC SYNDROME = 73(X)
_CORRECTED DATA BIT = 0.
STATUS
00000010
scrubbed
CRD CNT 00000001
1.
PAGE MAPOUT CNT 00000000
0.
FIRST EVENT 16B0F640
009622CB
16-OCT-1992 11:03:36.10
LAST EVENT 16B0F640
009622CB
16-OCT-1992 11:03:36.10
LOWEST ADDRESS 0BFF4000
HIGHEST ADDRESS 0BFF4000
Note
Ownership (O-bit) memory correctable or fatal errors (MESR <04> or
MESR <03> of the processor Register Subpacket set equal to 1) are
processor module errors, NOT memory errors.
5.2.7 Interpreting System Bus Faults Using ANALYZE/ERROR
If hardware register CESR <09> ( ) and/or CQBIC hardware register DSER
<07>, <05>, or <02> ( ) is set equal to 1, there may be a problem with the
Q–bus or Q–bus option.
When CESR <09> is set equal to 1, examine the hardware register CIOEAR2
( ) to determine the address of the offending option.
Example 5–7 provides an error log showing a faulty Q–bus option. The
CIOEAR2 error register indicates the first UQSSP controller as the offending
address.
5–26 System Troubleshooting and Diagnostics