@TTwerty
Hi,
I have the same problem as yours. I buy new mobo: Gigabyte Auros Elite on B450 Chipset and Ryzen 5 3600X. I installed Arctic Freezer 34 eSports duo cooling on it. Temps on idle fluctuate in the following ranges: 38 - 48 'C. When running benchmarks or an application that requires a lot of CPU, temps reaching 82 'C.
I also have a sensor installed on the heat sink - it is inserted into the third rib in the heat sink - looking from the processor base.
Here, the maximum temperature is 34 'C.
I know that the temperature of the heatsink has nothing to do with the processor itself, however, there is no possibility for such a difference. At 100% cooling is installed correctly.
AMD issued a statement about the change in temperature measurement on new CPUs but I can't find it anywhere. And I know I've read about it somewhere.
I also have a second computer with Ryzen 7 2700x CPU with same motherboard and here, even though the processor is more power-consuming, temps under maximum load during rendering do not exceed 67 'C.