Short Freezing problems

[Smartazz]

When I'm playing any game but Call of duty 2 and battlefield 2 the game locks up for about a minute then goes back to normal, this only occurs when the gpu is overclocked, why does it freeze for about a minute then come back?

 

[OdiN]

Because your GPU is overclocked?

 

[potato28]

Originally posted by: OdiN
Because your GPU is overclocked?

And a heat build-up?