try reading this thread on memory i have a fx 8350 and i use to crash in game tel i set the memory up right plus bump up the voltage juat a little on the ram it will make it more stable.
http://rog.asus.com/forum/showthread.php?3468-Crosshair-V-Formula-Easy-Memory-Setup-Guide
amd ryzen 9 3950x
CROSSHAIR Viii hero
Corsair Hydro Series H115i
G.SKILL Trident Z 3200mhz 64gb 4x16 timings 16,18,18,38
asus rog strix gtx 1080
TOSHIBA 3TB hdd 3x a total of 9tb, 10 tb hdd and a 1tb mushkin ssd
corsair axi 1200i 1200 watt psu
thermal take view 71 case