Last night I went to bed like normal. When I woke up, I realized the firmilliar hum of my computer had stopped. I thought it was nothing and I'd just have to press the power button. Not the case. I have spent the past two hours attempting to troubleshoot the issue. I have narrowed it down to the 6 pin power plug on the GPU. Everything works normally until that plug is utilized. If the 6 pin is inserted, the pc will shut down instantly. Power is not the issue as it has run perfectly for over a year. If my suspicions are correct, I the 6 pin power plug somehow got shorted and I will need to get a new card. If anyone has any ideas, let me know. I'd like to try everything before buying a new card!