i currently have a gtx 670 and wanted an upgrade so I looked around and found the gtx 970. I made sure my 750 watt psu could power it and bought it. When it arrived yesterday I swapped them over but when I tried to boot up again all I get is a solid white line in the top left of my monitor. It does not even reach the bios. Can anyone figure out why? My motherboard is Gigabyte SKT-1155 Z77X-UD5H.