On Sat, Jan 13, 2001 at 12:51:45AM +0100, Andrei A. Dergatchev wrote:
> 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
> subsystem,
>                                   eg single bit ECC errors, detected
> async to
>                                   processor execution
> 
> 630     Processor Correctable     correctable cache and TLB errors,
> detected
>                                   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
> location

Thanks for the helpful table!  If this keeps happening I may try to
reseat the memory.

[snip]

> Perhaps it is just any load that will cause problems.

It appears to only happen while the machine is being used heavily.
Maybe it is load related.

Nick