Hi guys, I am having the same problem. Just built my PC 2 weekends ago. I realised my temps fluctuate between 55 to about 70 when just surfing the web. It will go up to about 80 to 90 when I am playing GTA 5.
My setup is as such:
CPU - Ryzen 3600
Mobo - MSI B450M Bazooka Max Wifi
GPU - Zotac...