issue with IT87 on Asus

Mark Studebaker mds at
Sat Feb 19 16:10:08 CET 2005

try playing with the fan control settings as described in doc/chips/it87

Luke Munholand wrote:
> Hi,
> First off, I'd like to say thanks to you for writing such a great program. 
> Works great on my i810 chipset on the other computer.  This computer is a
> different story though....
> I'm hoping for a couple hints that will help me get my darned fans to turn off
> (turn slower)!  I have used the windows program "speedfan" which detects and
> controls my fan1 (CPU) properly.  From Speed Fan:  ITE 8712F super IO.  ISA bus
> $0290 linked ISA bus @ $0D00  ... IT8712F/IT8705F at $D00
> I have an Asus A7N8x-VM/400 motherboard that lm_sensors "sensors-detect"
> correctly detects has a IT8712F chip on the ISA bus.
> link to motherboard:
> 1. I patched and compiled i2c for my 2.4.29 kernel (stock slackware
> 10.1)
> 2. I tried to compile lm_sensors-2.9.0 but got errors (even after doing ldconfig
> -v) *weird*
> 3. I downloaded the most recent "daily" cvs snapshot which compiled and it
> compiled and installed properly.
> 4. "sensors-detect" correctly identified the IT87 chip.
> 5.  lm_sensors2/prog/pwm/pwmconfig cant seem to stop the fan1?  it says:
> ------------------------------------------------------------
> Warning!!! This program will stop your fans, one at a time,
> for approximately 5 seconds each!!!
> This may cause your processor temperature to rise!!!
> If you do not want to do this hit control-C now!!!
> Hit return to continue:
> Testing pwm control it8712-isa-0d00/pwm1 ...
>   it8712-isa-0d00/fan1 ... speed was 4166 now 4166
>     no correlation

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