AMD quotes
"The maximum temperature allowed by stock Zen 2 systems is 95ºC. The system will limit its boost speed to stay under the temperature limit.
It is fine to see jumps on the temperature of around 10ºC when idling. This is normal.
It is also possible that you see high temperatures under load. Up to a limit, this is normally okay due to how Ryzen measures temperature.
Zen 2's manufacturing process has quite a high density. This means that you can see load temperatures somewhat higher than what you are used to. This is normal."
Greetings
I too was pretty a pretty worried new Ryzen user and after scouring the web for weeks I've come to the solution to just except the fact that Ryzen chips perform differently than Intel which in-turn means to running a lot hotter than them even at idle. Now this being said, Ryzen 3000 series is still a relatively newer arrival with the whole x570 boards so give it some time till they work out all the quirks.
There are a bunch of other solutions to manually keep your temps under control for the timing if you'd like to know.
