I'm not aware of how to set other fan speed levels than those shown. Does Linux offer such a level to be set manually or is that just a result of automatic control in firmware?
There is a script named fancontrol,
So,with my preferences, when cpu gets 80°C, fan runs at maximum speed.
Then I noticed this, at max level ,its more noisier than windows,
Then I checked the fan to see what is the current RPM, it says 6200,which I can increase up to only 5400 in windows.
I'm not native at english, I hope I wrote understandable