So I have a GTX 770 that I put in a 16x slot, and I tried overclocking it. The overclock was stable, but a few weeks later, my pc would always freeze. Temps were at 60c in game, tried trouble shooting every component, but nothing showed up. I finally found out that the GPU worked in the 8x slot. I bought a new mobo and it worked fine in the 16x slot. Did I get a faulty mobo, or did my overclocking break my PCI-E slot?