Noisy PowerMac

[Mike Murphree]

Lyonel Vincent said:
> Hi all,
>
> I'm the happy owner of a dual 1.25MHz G4 Mirrored Drive Doors PowerMac
> (aka WindTunnel, the ones that can't boot MacOS 9).
> I've installed YDL-3.0 on it.
>
> The only problem I have is with the noise of this beast under Linux:
> it's much much much noisier than under OSX; the fans seem to be forced
> on and sometimes accelerate, with a varying noise.
>
> It seems to me that these fans are software-controlled. Is there a way
> to control them under Linux? Does anybody have any information on it?
> I've tried to have a look in the source code of Darwin but without much
> success...

This stands to be a problem for the new G5s too.  One could question
Apple's wisdom of putting the control of such a critical function upon
a general purpose operating system instead of dedicated logic or a
microcontroller on the motherboard.

Mike