I recently had my computer give out while gaming. Initially, I thought it may be the video card so I changed out my 560ti in place of my wife's cheaper card that doesn't use a power plug from the power supply. I recently bought a new graphics card and went through the motions to set it up and when I attempted to turn it on the fans on the card came on but no video. Is it possible that the power supply (Antec 750W) has something wrong? The computer boots up fine with the gfx card that doesn't use power from the psu.