Recently my computer has been doing a lot of bitcoin mining and the temps do get a bit high without overclocking. around 85 celsius. I stopped and decided to play some runescape. After a few minutes of playing my video cut out and I got a weird buzzing sound. Then the computer went off and now the logo and fan still work but i can only get video off of integrated. I've reseated it and everything. It doesn't even show the post screen so it cant be drivers. I'm going to try using my old 650 ti in the mean time. Will update and see if that works. Please help