R ronnocerman New member Joined Jan 28, 2014 Posts 1 Jan 28, 2014 #1 I recently switched graphics cards (from Nvidia GTX 780 to two non-crossfire AMD 7850's for cryptocurrency mining). From then on, I got BSOD and freeze one after the other, repeatedly, seemingly randomly, but it seem to be heat-related (My CPU never goes over 45 Celsius, and my graphics cards never go over 75 Celsius, however...) and seems to happen more frequently when I'm mining. Oddly-enough, it seems to freeze more frequently when I leave my computer alone. I'll use it all day, and then it will shut off just a little while (usually around an hour) after I go to bed. I did a Driver Sweeper after seeing the issues, removing all traces of AMD and Nvidia drivers, then I reinstalled the AMD drivers. No change. OS: Windows 7 Home Premium 64-bit (Made the computer myself, got the OS from a college program [dreamspark]) Age: 6-12 months OS: Reinstalled once (due to the fact that I reused my SSD when I built the new computer, clean-wiped and formatted it), current installation is at least 4 months old. CPU: Intel 3770k was overclocked (stable) from 3.5 GHz to 4.2 GHz. Disabled the overclock, problems continued. Video Card: Was GTX 780, now two 7850's Power Supply: 600 Watt Corsair. (GS 600) Thanks for your help!