I have been having issues in my pc.I just bough a 780 classified, and I put in in slot 1, the one next to the CPU. It has been having issues in the slot, as the computer will lose output and one long beep and 3 short beeps will be heard. I upgraded my PSU to a 900 watt ante, so that isn't a problem. I put in in the third slot now, as I am thinking my first slot is faulty (did the same thing with a 660 ti sli set up I had). Will the fps be less? I am only at 1080p gaming.