Is your motherboard BIOS the most recent version?
How are your CPU/GPU temperatures at idle and under load?
Are you overclocking anything (CPU, GPU, memory)?
Motherboard Bios is F6 - 2016/03/02 (Improve DDR XMP compatibility). No the most recent.
The most recent is F20 2016/11/09 (Support 7th generation CPU) * This BIOS prohibits updating to earlier version BIOS.
Cpu is now in 4.4ghz oc but in normal 3.9ghz happened the issue too.
Temperatures very normal.
Photo cpu voltage and temperature:
Memory is 2400mhz xmp auto config in bios.
Gpu is oc but all ok. I changed it last month and the problem persist.
Temperature very normal.
Full load: 69°C