system graphics issue

I have had my PC for 4 years and I use it often for gaming, but I don't think that use should cause the issues I'm having. Parts: ASUS P9X79 LE, LGA 2011/Socket R, Intel Motherboard - (Manufacturer Refurbished) Intel i7-4930K 16gb DDR3 GTX 1060 shortened (1fan) 6gb vram 4 tb hdd, 256gb ssd (Both...