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Date: Thu, 06 Dec 2012 08:05:05 -0600
From: Nathan Whitehorn <nwhitehorn@freebsd.org>
Subject: Re: iBook Fan and keyboard
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On 12/05/12 14:14, tjohann wrote:
> Hi@all,
>
> i have an iBook G4 (late 2005) at home and installed FreeBSD 9.0 
> Release on it ... installation worked fine ... now i´m building some 
> packages via ports .. also all works fine :-) ... But it went quit 
> warm ... and i don´t hear the fan ... now i get a little bit nervous 
> ... for linux i know i have to load therm_adt746x ... is there 
> something similiar to freebsd? ...
>
> Thx for all comments and tips
> Thorsten
>

The ADT chip is a software-controlled thermostat which will autonomously 
control the fans. You only need the driver if you want to change the 
thermostat setpoint or inspect the fan speed.