On Wed, Jan 22, 2014 at 08:32:31PM +0100, Mathias Gerber wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hello Guenter > > On 22.01.2014 19:34, Guenter Roeck wrote: > >>> Interesting. Obviously that doesn't help ;-). What is returned > >>> back if you read pwm2 after setting it to 0 ? > >> 0 (zero). Maybe some sort of protection? > > No idea. Might be the fan itself doing it. > Unlikely. The same fan model is installed on my other main-board > (Gigabyte with it8728) and its possible there to bring down the fan to > 0 rpm with pwm set to 0. > Ok. > > What happens if you set it to 1 ? > Set to [0-4] => fan spins up to maximum rpm (~2250rpm) > Set to > 5 => fan spins at desired rpm (~600rpm upward) > Mathias, Can you send me the output of "grep . pwm2*" ? I'll see if I can find anything in the datasheet that might explain this behavior. Thanks, Guenter _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors