AS99127F module not detecting fan speeds

Mark M. Hoffman mhoffman at
Wed Aug 20 23:57:52 CEST 2003

* Stian Jordet <liste at> [2003-08-19 23:56:55 +0200]:
> Hi,
> I'm very well aware of what you say on your homepage:
> If you have problems, please lobby Asus to release a datasheet.
> Unfortunately several others have without success.
> Please do not send mail to us asking for better as99127f support.
> but I'm not sure if this is just me doing something stupid (which I
> hope), or lack of a feature in the driver. If the latter, I'm sorry for
> disturbing. This is with kernel 2.6, but I had the same issues the last
> time I tried 2.4 (which is a very long time ago.)
> Any hints? Except for buying some hardware which is not Asus...

I see you already got some help on LKML... but this is a FAQ:

> 4.1.1 Fans sometimes/always read 0!!
> You may not have a three-wire fan, which is required.
> You may need to increase the 'fan divisor'. See doc/fan-divisors in our
> package for further information. 


Mark M. Hoffman
mhoffman at

More information about the lm-sensors mailing list