Ralf Mardorf wrote:
> Hi Dave :)
> 
> I guess the fan is controlled by the BIOS and not by the kernel or any
> Linux application, I guess it's an ACPI function.

ACPI can be controlled by user space applications.
> 
> I don't think that ACPI is turned off. I'm still with 64 Studio 2.1 and
> here my dual core always runs with full speed, while for my Suse the CPU
> speed is managed to fit the load.
> 
> If the CPU always runs on full speed, the CPU gets warmer and the fan
> will run faster. I guess this is the reason why your CPU is running
> faster, while you are using 64 Studio. It's possible to change this, but
> maybe it's better for audio performance to run the CPU always with
> highest frequency.
> 
On my laptop I disable frequency scaling when doing audio work as the
frequency scaling sometimes causes glitches when I am pushing the hardware.

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