I installed a new PSU and GPU today so I'm pretty proud since I'm a noob to computer stuff and I'm still learning. After finally getting things plugged in now and my PC actually turns on this time now my monitors don't after hooking them up. My new gpu is a GeForce GTX 750 Ti. I checked and it is plugged in all the way. One monitor uses a HDMI and the other uses a dvi. Any help?