i just bought radeon 6600 and with amd driver software i had oced my gpu min core: 2680 max :2780 and ram at 1766 with fast timings all that with 1130 mv so question/s are what is consider safe voltage for this gpu? how far i can go?olso even if i set it on 1100mv it goes up to 1130 wen gaming is that normal? (stock was 1150) another question is that as far i had seen from XT model ram can go to 2000 or 2100 with fast timings...em i gting bad silicon or ram quality or xt model is way better wen it comes to ram oc?