My graphics card is not working but my fan is im soo confused help plz!

Nikewade

Honorable
Jan 5, 2014
5
0
10,510
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.
 

Nikewade

Honorable
Jan 5, 2014
5
0
10,510
I have a corshair 500 watt
I know its the graphics card because when i hook the dvi to my mother board it works fine is my graphics card broken at some point i got it to work loaded minecraft played for about 4 sec then bam all these colors apeared and my system crashed