Ok so i recentally built a new pc. New everything exept the screen,dvddrive,and i got the hardrive from a friend. I uninstalled all the drivers and everything. Everything is working but the graphics card. The fan is spinning but when i type dxdiag into the run it doesn't show up and I've ran mutiple diagnostics to see if its there and it isnt. plz help also when i install the drivers and i boot up windows the screen goes black. My graphics card is a geforce gtx 650 ti.