ES40 System Crash

[Emad Omar]

Hi all,

I have a crash case with Alpha Server ES40, 2CPUs 667MHz and 4GB Memory.It is running on Tru64 V5.1 . I suspected with the CPUs and I removed them and installed a new CPU instead.But I'm still getting the same crash.Please find attached the crash file hoping this could help to diagnose the problem.

Kind regards,

Emad Omar

[Michael Schulte zur Sur]

Hi Emad,

the best advice would be to open an call with HP in case you have a maintenance contract. Otherwise can you post the output of decevent or webes from that incident?

greetings,

Michael

[Ivan Ferreira]

We had this panic string, and the problem was a memory module.

The panic string can be caused also by a bad power suppy.

[Emad Omar]

Dear Ivan,

The ES40 has redundant power supply, which it means that if we got a power supply failure, then system will still run without any interruption. So I exclude the PSU and may be I have a defective Memory.
Also I need to know if there is another command to test the Memory because when I issued the command memexer at >>> and then issued >>> show_status , I got nothing important.

Please advise . . .

Emad Omar

[Michael Schulte zur Sur]

Hi Emad,

the status of the power you can see with
show power
Have yo run a general
test
?

Michael

[Ivan Ferreira]

Redundant power suppy is not warranty, still the problem can be that, a bad power supply can damage components. Also, there are rules about power supply and the ammount of processors (That i can't remember)

We detected the bad power supply using dia -R -o full, also you can use the show power SRM command as methioned above.

[amrelsayed · Accepted solution]

Dear Emad,

your problem is memory, as it is become a common in ES40 machines, i want your binary.errlog to analze it, and i will tell you which memory medule wants to be replaced.

Best Regards,
Amr

[Vladimir Fabecic]

I also think that memory may be a problem.
If you have enough time try to do memory tests:
>>> init
>>> memexer 3
I had simular problem once. After two hours of testing memexer found dagaged memory module.

[Adam Strobel]

I agree with having a memory problem. My ES40 was just crashing every other day or so with the same error "Processor Machine Check" and It turned out to be bad memory.

good luck

--Adam

[Emad Omar]

Dear all,

Thank yu for all of you. Yes I got 1 DIMM defected at one of Memory Module .

Kind regards,

Emad Omar

[Emad Omar]

Memory Failure as I mentioned.

Thank you again.