I am sure that the issue is with BIOS because all temperature sensors works fine as I can to watch it by another software from Windows. If I turn XMP profile (1 or 2) on then fan control is not working. If I turn of XMP and let DD4 works in 2133MHz as default, then fan control PWM or DC works. Now I am absolutely sure that my issue is related with XMP profile on or off. I have flashed the BIOS again and it showed that probably it was helped but I realized that XMP profile was turn off by the default.

Sometimes is 30C degrees sometimes 35C like random value probably set while reset or power on PC. I have checked how the temperature looks in BIOS and I have noticed the same: temperature of CPU is fixed (the value is not changing). The temperature is realistic: 34C in idle and is rising up to 70C under Cinebench benchmark. So I have installed Open hardware monitor app to double check and under this app everything is ok. I have thought that maybe the problem is with MSI Center in Windows (shows really unrealistic temperature example fixed 30Celsius no matter if under stress or idle ). I have Ryzen 5 5600G, so I've flashed the BIOS using the file from Dec2021.

Msi b550 tomahawk fan control