I had heard of my friends being able to overclock the gtx 1070 asus strix to huge amounts, I had made the assumption that I would he able to adjust in high proportions, and upon running unigine valley, I had met a screen of artifacts. Every time I run my pc, it is very slow to run now and also valley is only giving me 30 fps on standard gpu tweak gaming setting. I am scared I may have broken my card?