I recently installed a graphics card in my computer (I was using on-board graphics before) and this error started popping up called DPC_WATCHDOG_VIOLATION, it had happened before but only occasionally. But after I installed the graphics card it got more frequent, it got to the point were I re-installed windows to try and fix but it didn't and i reset my computer in the hopes that, this will work but i'm not sure yet. This is a link to my system http://pcpartpicker.com/p/35XNC