been trying to get my XP overclock back (in sig) with my 8800GTS to improve crysis gameplay, and it simply won't work, no matter what i do i cannot overclock the thing, any overclocking results in crashing (BSOD with something to do with memory dumping), tried ATI tool and xpertool with no luck, me PSU recently bought it and im back to using my OCZ modstream 520W PSU, could it be lack of power?