I just build myself a monster of a new computer and I keep experiencing total computer freezing. Like, the whole computer will freeze everytime I play a game. It's very random. It could happen 20 minutes in or 2 hours in. It only happens when I'm gaming. It's very stable otherwise. I'm running windows 7 64bit.
My stats are:
core i5 2500k
amd radeon 6870
asus p8p67 mobo
g.skillz 8gb ram ripjaws made for sandy bridge
cz modxstream 700W
coolermaster cm690 ii case
Nothing is overclocked. I tried reformatting several times, different drivers. I ran memtest and checked the temperature. The cpu hovers around 50C on load and the GPU goes up to 75C on load. They're both around 40C when idle. I swapped the ssd for a normal harddrive to see if that could have been the problem, but it still happens even with a normal harddrive.
I was thinking it could be overheating from the GPU, but 75C still seems normal to me.
Does anyone have any ideas what I could do next? I'm absolutely very frustrated with the whole situation. Any help would be immensely appreciated.