This only happens when I play games, idle it's just fine. but according to Open hardware monitor nothing exceeds 30 degrees C. But event viewer gives me event 6008 which can be caused by a critical thermal event but it just says "The previous system shutdown at 12:12:02 PM on 4/11/2015 was unexpected." so not terribly useful. The shutdown is just a sudden click, then a black screen, the it reboots and asks how I'd like to start windows.
specs
motherboard: asus Z97-A
processor: intel i5-4690k
vid card: NVIDIA GeForce GTX 960
tower: Cooler Master HAF 932 Advanced
RAM: 8gigs
Power supply: 1000watts
specs
motherboard: asus Z97-A
processor: intel i5-4690k
vid card: NVIDIA GeForce GTX 960
tower: Cooler Master HAF 932 Advanced
RAM: 8gigs
Power supply: 1000watts