Uh, forgot to put in the details. So this seems to happen after Windows 10 Fall Creators update. It randomly happens while gaming-- Around 1 hour mark, and then freeze. Nothing I can do except a force shutdown.
My PC specs:
AMD FX 8370 @4.3 GHz
GTX 970 G1 Gaming
16 GB RAM
1080P monitor
750W Corsair PSU