I have an "ASUS Pro WS WRX80E-SAGE SE WIFI" motherboard. The IPMI Hardware Monitor in BIOS displays a list of sensors for temperature, voltage, and fan speed, but all of them show 'N/A' instead of actual readings..
When I use ipmitool in OS on the same machine, for all the sensors it reports either "no reading", "Not Readable" or zero.