Guys..i recently bought an asus gtx 760 oc direct cu 2 edition...now, as you know, this comes with a gpu tweak software...i have read several times that if u oc the factory overclocked gtx 760 it almost provides the same performance as r9 280x..but whenever i try to overclock it using the gpu tweak...after a few mins...it says your display adapter stopped working..why is this so?? is my xfx 550 watt psu not sufficient for overclocking? i am following the steps shown in overclocking.net (which i believe is a trustworthy site)..any solution will be greatly appreciated..thank you