hi all, i replaced my dead ati4870 with gtx580. i recieved it today,still havent put it in my system(running on a temp 4850) i have some general questions. 1)will my power supply be able to power it,i dont intend to overclock it.(BTW its 600w PSu) 2)do i have to do complete reinstallation of windows,bcoz i have ati drivers installed?? 3)the card requires one 8 pin and one 6 pic connector,but my psu has two 6 pin only,can it run on those???(i think it is not possible,but i need ur advice) 4)this is my first time going nvidia side,so what physx settings can it handel? 5)any other input would b helpful rest specs are same.i plan on installing the card as soon as i get molex to 8pin convertor. thanks in advance/ EDIT:my segate hardisk has recently started giving STATUS bad on bootup,what does this mean?