Hanimichal
Charter Member
At all random times, some PC guru please...

Chances are that an overclocked CPU causes such a problem.
Chances are that an overclocked CPU causes such a problem.
It could be any number of things, but this is certainly what I started to see when I tried to push my i7 3770K to 4.5GHz - possibly the (air) cooling wasn't quite up to it, or I hadn't set the core voltage quite right, but since I backed it off to 4.4 before Christmas it's been rock steady.