I recently got my GPU RMA'd, which was a Radeon R7 370. It worked fine the first day, but the next day whenever playing a game the computer screen would go black, and the sound would keep going for a while and then stop. I tried using FurMark and this always causes the screen to go black, so I think its a GPU problem. I also tried switching monitors and HDMI cables, and using a VGA monitor, all of which caused the same problem. The only thing I think it could be if it isn't the GPU is the power supply, which is an EVGA 600 Bronze, but it was working fine before with my card. Anyone know what could be happening?