Dei uma googleada aqui e olha só o que achei, vê se resolve ai:
So after finally getting a response from their support team(after like 4 days) they recommended that I change my power plan from high performance to balanced inside the control panel. This drastically lowered my idle temps from 60c down to 35-40c which is much more toward my liking. However, i'm not sure why the high performance causes such an issue as my previous CPU's have not encountered this issue in the past. Hopefully someone can benefit from this and thanks for your help everyone!!!
ou seja, muda o plano de energia pra balanceado que deve cair coisa de 20º C a temperatura. checa ai e volta pra contar pra nós.
EDIT: Sobre como fazer isso, tem aqui:
AMD offers Ryzen Balanced power plan for Windows users to get the most performance from their Ryzen CPU. This power plan is easily won against Windows'
asapguide.com
se cair bem a temperatura fala que eu vou ver de fazer isso no meu 3600. quem sabe assim consigo subir mais meu OC haha