well the 3870x2 did the same thing. Meaning I think the PSU is crapping. I put the GX2 back and cpu and all at defaults. nothing is overclocked. Crysis Warhead ran a steady 45-50 FPS. Tomorrow I'll find some time to tweak the overclock again. It was Linx stable, but maybe it had to do with something that linx doesn't stress much, I don't know, what do you guys think?
By the way sorry to have made your thread a bit off topic, but you guys have been very helpful
You'll can PM me if you'd like to keep this thread on topic.