I installed a new graphics card to my PC and it's using a DVI-I to VGA adapter and it's connected with a VGA (Yes, it IS a DVI-I) When I connect it using that the computer turns on, the monitor turns on, and there is nothing displayed on the monitor. The GPU (gigabyte gtx 770 4gb) is in correctly, I've checked many times. I tried using the mobo graphics and when I do, the monitor stays off and I hear one long beep and 2 short beeps. Whenever my PC turns on the light that shows it's 'loading' goes off after a few seconds and a quick tap of the power switch will shut it off completely. I'm so confused as to what to do and afraid I screwed everything up. I think it's a PSU problem but can't be sure. It's more than enough watts as well.