Troubleshooting Hpmcs; High Priority Machine Check (Hpmc); Hpmc Codes - HP 3000 Series Handbook

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Troubleshooting HPMCs
\.Vhen an HP11C occurs, the fault light on the front panel comes on, and the console displays
the status. An hpmc is handled initially by system firmware, which builds an error log. When
finished, it transfers control back to the operating system.
In HP- UX, a panic dump is created. The operating system saves a memory dump to a special
location on disk and attempts to reboot the system.
On MPE systems, further information is displayed on the console. When the system halts,
you do a control B and type "TC". Then boot from the primary boot device and interact with
ISL. At the ISL prompt, type "Dump" and save the memory dump to tape.
The HPMC error logs are the same in both operating systems. To access the error logs, reset
the system. When you get the PDC menu, type SER to access the service menu. Then type
"PIM" to list the contents of the PIM dump.
The most important information is in last sections of the pim dump. The important items to
look at are the timestamp, HPMC type, and requester/responder information.
Table 5-12. HPMC Codes
Code
Cause/ Action
2040 Cache error. Replace CPU Card.
2043 Data Cache error. Replace CPU Card.
2044 Level 2 Instruction Cache error. Replace CPU Card.
2045 Level 1 Instruction Cache error. Replace CPU Card.
503F
Replace I/0 cards listed in HPMC error log.
7000
Double-bit memory parity error
70xx Replace memory SIMMs or replace CPU Card.
CBFF
Multiple HPMCs from above list. Act only on first recorded HPMC.
High Priority Machine Check (HPMC)
A third type of failure is the High Priority
~1achine
Check (HP1fC). An HP1fC is an
abnormal condition which has compromised the integrity of system processing. The CPU
detects the HPMC and halts the system.
Use the recovery procedures in Table 5-13 to resolve the problem.
5-16 Troubleshooting