[Sussex] Bad motherboard or processor?

[Desmond Armstrong]

On 07/03/10 08:28, John Crowhurst wrote:
> I've never seen a bad processor, so I've no experience of when one goes
> bad. Its usually motherboard.
>    

The processor is designed with an over temperature shutdown circuit. And 
certainly the immediate symptom is that it becomes very slow in the way 
you describe. If it does not recover when you have good working fan on 
it and the heatsink is well mounted on the processor then, yes, it is 
probable that the processor has suffered permanent damage.

Generally the over temperature circuit on the silicon does save the 
processor.