I haven't done any OC on this machine, i will see if i can see anything in bios, it is poss it has some form of auto OC? This problem has persited in one form or another every since i had the machine from new, 3 years now. I have made several posts over that time, it is poss it is all related, with the exception of a post i made about PSU failure.
The crahes have changes over the last year though, everything was much more heavy load, game orientated crashes prior to this year, now they are pretty rare in a game at all, more of a first hour booted up time frame, if it doesn't crash in that period i seem pretty safe, so i have been leaving comp on and just letting it sleep overnight. It is late here and i am waffling, so thanks for your help yet again, it is truely appreciated.