[mythtv-users] Fancontrol with replaced CPU fan

Simon Hobson linux at thehobsons.co.uk
Mon Oct 12 22:03:59 UTC 2009


I wrote:

>>I'm surprised this works with the chassis fan - the 3 pin connectors are
>>power + speed feedback (not control).  I guess the motherboard allows
>>the voltage to be controlled, which would alter the fan speed.
>
>I'd assumed this was the way all fans worked in PCs - they do indeed 
>vary the voltage to vary fan speed.

Oops, should have added "on moderately modern hardware". Old hardware 
does in fact just supply a fixed 12V and the fan runs at constant 
speed.

-- 
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
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