Fan control with Fujitsu/Kontron D3644-B

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Does anyone know how to enable the fan speed sensors on my Fujitsu D3644-B motherboard with NCT6796D-sensor?


sensors-detect output for Super-I/O is the following:


Some Super I/O chips contain embedded sensors. We have to write to
standard I/O ports to probe them. This is usually safe.
Do you want to scan for Super I/O sensors? (YES/no):
Probing for Super-I/O at 0x2e/0x2f
Trying family `VIA/Winbond/Nuvoton/Fintek'...               Yes
Found `Nuvoton NCT6796D Super IO Sensors'                   
    (but not activated)

dmesg | grep -i nct gives me that:


nct6775: Refusing to enable a Super-I/O device with a base I/O port 0


Help please :)

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