Asus ROG B365-G temp sensors

Hi,

Absolute PC noob here, apologies.

I recently upgraded my case and fans, including the number of them and chose to use Fan Control by Rem0o to control. Everything seems and works fine, it's a great app, but I noticed that it shows 4 temp sources seemingly on the motherboard.

As per Asus page, it seems it has only 3 sensors. I'm a little worried because 1 sensor even just booted and idle constantly shows over 100C. It might have been this for years as never monitored, lol, but never had any issues.

Could it be that it has 3 sensors as per Asus and this no4 is not true? I have googled but cant find any actual info on number or location of the sensors.

Also, noticed that CPU Core temps are quite high, but max/average/mb core look alright and match with what NZXT cam shows - why is this?

Screenshots from Asus page and Fan Control temp sources:
https://failiem.lv/u/7etpyh7sgd

Any advice will be really appreciated!

Thanks

R