Found this here on the same board... It's pretty much a copy cat version of the Asus B450M-A https://www.asus.com/us/Motherboards/PRIME-B450M-A/
Even the BIOS updates have the same changelog, the design is identical. Perhaps it could be a clue to how this works?
I've just recently upgraded from an H81M to a H310M platform (Gigabyte H310M-M2 (Brazil only I think) or H310M-M A for the US model) .
I've been using HWINFO for a while and I really like the software. However, both the stable and latest version are reading wrong values from the sensors...