Dave Sherohman wrote:

> I've got a machine here which is consistently locking solid after 1.5
> to 2 hours uptime and I'm looking for possible explanations.
> 

> When it locks up, it just stops dead - no errors are logged at any time,
> the keyboard and NICs are totally non-responsive (it won't even unblank
> the screen or toggle caps/num/scroll lock).  It basically acts like the
> CPU overheated and shut down, but I would expect heat problems to have
> also affected memtest86.  Just in case, I've tried underclocking it,
> but the CPU stubbornly runs at 900MHz no matter what I tell the BIOS.
> 
> Any suggestions for what other than heat may have killed this box's
> reliability?  Is it probably heat even though memtest86 is fine?  (And,
> if so, why is it overheating now but not a month ago?  The room it's in
> is still around the same temperature.)
> 
> 


Did you try turning off all power saving settings?


Paul R