Cause of all the benching and priming for having a stable-sys I didn´t notice another prob that just occured now.
Sys is stable under prime / good results in super-Pi ... all fine ... but I just started to play a round "world in conflict" (tried other games also ) ... after a few minutes I got a bsd :
"nvlddmkm.sys" which is concerning the drivers for my 8800gtx.
The weird thing is when i clock my Q6600 down to 3GHz all is fine.
So what´s the matter ?
Should depend on the NB voltage, shouldn´t it ?
but I allready tried to raise to 1,69V ... still the same bsd.

Any ideas are welcome.