I've read the reason why the Ryzen X processors over-report CPU die temperature by 20 degrees C.
OK, but at least let users optionally turn this off!
My mobo BIOS fan control is designed for a normal range of CPU temps. Having the sensor report 20 degC high means all ramp control is impossible - the best I can do is fans idle or full blast, and even moderate changes in system load will jump them between these states. I've seen others discuss this too.
So this Band-Aid for cooling actually causes a cooling problem and a major irritation. I now wish I hadn't bought an 'X' CPU - the performance boost isn't really worth the annoyance.