AMD RX 5700 XT crashes

Hi, I got the same problem and I have done all thinkable test with all programs and with all stresstest my computer run smooth BUT start Apex it is then my PC start to * up totaly.

Sometimes I can play for 1-3 H without problem then suddenly game freeze, se mouse then need to do a hard reset of pc (Power button), then start computer agian and suddenly the PC just randomly freeze and need to same agian. Or just the screen get black and need to restart manualy agian. Reinstalled Windows from home to Pro and even there got EVEN MORE Problem. 

Using new setup and for now evrything on default settings and still get problems...will try to change to an old graficcard and se if that helps or IF it is just the new AMD card that sucks or if it something that is messed up :F

AMD RX 5700 XT
Ryzen 3700X

Gigabyte Aurus 570x
GSkill 16GB 3600 Mhz