I've ran into this issue after starting my PC up a few days ago. It doesn't appear in the bios or when browsing web pages with HW acceleration turned off. It only happens when I load up programs that utilize the gpu. Seems to get progressively worse as more textures load. The last image was taken right when unigine froze up and I was forced to restart my PC because I couldn't close any windows. Could it be my PSU or is this a GPU issue? Everything is running stock.