rms wrote:
>> It ran Prime95 successfully for ~ 2hours, before I needed to go out.
>> Temperatures had peaked at about 65C (too high ?
>
> Yep, too high, though remember alot of failures occur right at startup
> when voltage is first supplied to the cpu and the fine connecting wires burn
> out, hitting high temp weakens them before the end. You can check the max
> temp for it at: http://users.erols.com/chare/elec.htm
>
> rms
>
If the silicon die is exposed, I'd check for chipped
edges or a crack in the die. It is possible for a
heating/cooling cycle, to finish the thing off. So
check for visible faults first. Some of those chips
survive quite nicely with chips off the edges of the
silicon die, so a small chip doesn't guarantee death,
but a chip or crack could spread over time.
Paul