i found this post
however the git repository they are using doesn't exist any more so i cannot try it.
@SERVER:~$ sudo sensors-detect # sensors-detect revision 6284 (2015-05-31 14:00:33 +0200) # Board: ASUSTeK COMPUTER INC. ROG STRIX X370-F GAMING # Kernel: 4.15.0-38-generic x86_64 # Processor: AMD Ryzen 7 1800X Eight-Core Processor (23/1/1) ...... Sorry, no sensors were detected. Either your system has no sensors, or they are not supported, or they are connected to an I2C or SMBus adapter that is not supported. If you find out what chips are on your board, check http://www.lm-sensors.org/wiki/Devices for driver status.