Drivers for motherboard HELP!

Robert Hubbard

Honorable
Sep 7, 2013
3
0
10,510
So I installed a new mother board today, and everything works well. If I plug the VGA cable in directly into the mobo I can do everything just right. But, when I go to install my graphics card, I get weird lines across my screen, then the computer goes to boot up then stops and crashes. I have tried the graphics card out on another computer and can tell that it is not the graphics card that is the problem.

My specs:
Motherboard: A55 PRO3
Graphics Card: NVIDIA GTX 550 ti
PSU: Thermaltake TR2-600W
CPU: AMD A8-3870K
Case: Thermaltake Armor A60 AMD
HD: Seagate Barracuda Green ST1500DL003 1.5TB

Also I am running Windows 8.1 Preview. At the moment I just want to get my graphics card to work and get back to gaming. Right now I believe that it is the drivers. Only problem is I can't install drivers for NVIDIA unless I have the graphics card installed, which doesn't allow me to boot. Any help would be great.