Subject: Re: unexpected machine checks
To: None <firstname.lastname@example.org>
From: Andrei A. Dergatchev <A.Dergatchev@tn.utwente.nl>
Date: 01/13/2001 00:51:45
> Unexpected Machine Check
> vector = 0x660
> Is this indicative of bad memory?
Yes, very probably. There was a case (for pc164) when it appeared
to be a problem due to bus (you could look in archives).
> How would I go about
> finding out what these machine checks mean?
Machine checks are of four (4) types, as in the following table:
Code Reason Example or Common Cause
==== ====== =======================
620 System Correctable correctable errors in the memory
eg single bit ECC errors, detected
630 Processor Correctable correctable cache and TLB errors,
internally by the processor
660 System Uncorrectable unrecoverable memory errors
670 Processor Uncorrectable unrecoverable cache or TLB errors, or
read of a non-existent I/O space
> Maybe my reliability problems burning CDs and these
> machine checks are related? I think I had better stop
> trying to burn CDs until I get this sorted out... I've
> destroyed 5 today.
Perhaps it is just any load that will cause problems.
> Nick Maniscalco