I have already done memtest86 and it was fine.
Well you're right , i just mean that i haven't overclocked the CPU yet 😛
I seriously can't find what causes it , if i run a synthetic benchmark that puts my system under 100% load , it runs stable for hours and hours , when i try to play a game , (some examples , dota2 ,assassin's creed 3 , the witcher 2 etc) after a couple of hours i get that win8 error and the pc reboots.
At first i thought it was something about steam since all those games are from my library , but it happened with FFXIV RR Beta ,which is a standalone game that has nothing to do with steam.
I'm at loss right now , it's not the GPU , it's not the CPU , it's not the RAM , i suppose it can't be the drives (samsung 840 PRO 256gb + WD 2TB black) it's probably not the motherboard... could it be a windows 8 problem that i'm missing?
It's my first experience with that OS i didn't use it before , i might be doing something wrong?