[lm-sensors] w83627hf, fan speed always high, unchangeable?

Grant Coady gcoady at gmail.com
Thu Nov 3 16:01:01 CET 2005

Jean Delvare wrote:
> Hi Sebastian,
> On 2005-11-02, Sebastian Nowozin wrote:
>>I just installed an EPOX ES300 miniMe barebone with a EP-4PGF mainboard
>>using Debian/testing, kernel 2.6.14.  The chip label on the board reads
>>"Winbond W83627HF-AW", and sensors-detect finds it as such with a
>>confidence of 8 at the ISA bus.
> Yes, this is the most probable. It is always a bit frustrating to know
> that the chip could do it, but the motherboard manufacturer did not wire
> it properly to do so. Unfortunately, this is a rather common situation.

I have similar sensor chip in one box (w83697hf), no fan speed control,
turns out desktop AMD Sempron doesn't have CPU power idle therefore CPU
temp varies only a couple degrees on load --> no point having fan speed
control, thus mobo make didn't wire it.  If CPU is running at ~50'C there's
not much fan speed reduction can be done, in my situation I put the PC
box under the desk to reduce the fan noise :o)


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