regarding issues with drivers 19.6.2/3 and 19.6.7 i may have found a solution. Restoring system RAM to default values fixed the issue. CPU oc seems to not affect the stability of the system.
Double Posts...against forum rules. Mark the suggestion given to your other post as the correct answer. amdmatt
did you also flash a new MoBo Bios?
i did so my GA-AX370-Gaming 5 supports Ryzen 3000 - but now i only get 3400CL14 stable instead of 3533CL14!