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Re: fan control on thecus n2100

John Winters wrote:

> Sorry - I can't see the difference between those two.

Oops! Typo.

You need to set both pwm1 and pwm2 to 255 to make the fan run at full speed
I think - anyone confirm? The existing script only does one of them.

Also, I've just noticed that it sets the fan to full speed *before* it kills
the daemon, which is unsafe since the daemon might run again before it gets
killed and leave you with a slow or stopped fan!

> Incidentally, I too have looked at that script.  There are references to
> needing to work out a couple of values to suit your machine but no
> indication of what the values represent or how you would work them out. 
> Can anyone provide more information?

The values are the temp difference for fan control FAN_RNG - which I've left
as 10 Degrees C and FAN_MIN which is the lowest fan speed control value to
output when not either stopping the fan (0) or running it at full speed
(255). I've currently got mine set to 60 rather than the provided 70.

I suspect it depends on how many hard drives you have fitted (one in my
case) and how good the airflow is in the box, with some of the ventilation
mods from the Debonaires page you can probably use a lower value. The idea
being that in the ideal case the fan would come on at it's slowest speed as
the box initially warms up and stay there all the time rather than coming on
too fast and then being cycled off and on again.



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