This is my first build and I purchased a GTX 770 graphics card. Before putting the card in I installed windows and everything worked fine, until I decided I should put the card in. If I try to put the card in, I get no video whatsoever. My monitor doesn't show anything other than the standard HDMI power saving mode. If I take the card out, the computer functions fine. Can someone help me with this? If it helps, my motherboard is a ASUS Z97-A. I don't think this is a problem with my power supply.