PC boots fine but screen image is constantly black

Cody1408

Honorable
Jul 4, 2013
18
0
10,510
Basically as the title says, I built my first computer and it all went smoothly, the only problem is that when I turn it on it boots up fine but the image on screen just stays black.

I have tried unplugging and plugging the GPU back in, using both HDMI and DVI cables on two different monitors, and restarting it, but still there's just a black screen.

Does anyone know why this is happeneing or how I can fix it?

The GPU is the EVGA GTX 770 4GB.

Thanks