fatboymatt99@hotmail.com wrote:
> My PC ever since I bought it has randomly slowed down after what seems
> a completely random time period, usually from 1 minute up to half an
> hour. By slowdown I mean that if I am playing a game, from running
> constantly smooth, in a split second it will go jerky. There is no
> excessive reading of the hard drive or anything else instantly
> visible. It always slows down to what seems subjectively the same
> speed. I have also taken bench marks before and after this slow down
> and the results reflect it also.
>
> I reformatted, and still the problem occured. When returned to the
> manufacturers they could not find anything and returned it unfixed.
> They told me that it wouldn't be heat related, as this only causes
> freezing or shutdown of the PC.
>
> Since getting the computer back, I have taken the side of the case
> off, and physically stuck a large household fan blowing straight in
> to the case. This keeps it very cool, and the slowdown hardly ever
> occurs now, even when left on for long periods of time.
>
> Is there anything inside a PC system that would actually slow down if
> it got too hot rather than shutting down? I'm hoping somebody knows a
> bit more than the guy that tested my computer ;-)
>
> Many thanks in advance,
>
> Matt

Check voltage fluctuations on the power supply also.

Q