Then try manually setting all cores in BIOS. Just set the multiplier to wherever between 40 and 45 (4.0-4.5GHz) and see how much you can get before it gets really loud. I set my 5800X to 4.35GHz@1.181V and it's rather cool and quiet until I start torture benchmark like LinX or Prime95. Maximum safe voltage is generally presumed to be 1.35, but it will still get rly hot if you set so all core without serious liquid cooling; I would recommend keeping it below 1.2 volts for air cooling, and then gradually maybe lower it by small steps if it's still 2 hot 4 u.
So start with my setting of 4.35@1.181 volts, test and manipulate according to the situation.
If it hangs/BSODS - lower the multiplier to 4.2GHz and/or up the voltage to 1.2V.
If it's still hot at my setting, get yourself a cooler instead of aluminum can get to 4.2@1.15 and test, and if still hot keep lowering stuff by small increments. Theoretically, it should be stable at base 3.8GHz with 1.1 volts, but if you get to that point, it's just sad.
Alternatively, search for "Clock Tuner for Ryzen 2.0" and enter the magnificent world of manual overclocking, filled with bugs, BSODs, per-core configuration, P-states and other confusing stuff that will make any sane person go WTFing.
For tests, I would recommend Cinebench, then LinX, then Prime95. Each one after the other. The last one us a true torture test for CPUs, if you manage to keep it below 90°C for half an hour, you're golden.
