Did you swap out the PSU with your OCZ one?
No, im just gonna send it back!! ive had enough of trying to get this thing to work. Am getting a replacement board so hopefully all should be fine with that one lol. If not then i will look at my PSU, but why would it work for near enough 3 days playing games like Crysis 3 and BF3 for it to just lockup on the Crysis 3 main screen last night?
It would have ruled it out, although in all probability it isn't the power supply. You'll be sick as a pig if it is though
Perhaps post your question in the motherboard section, you may get more luck there