Fan/Power controls

[Nathan Whitehorn]

Andreas Tobler wrote:
> On 27.02.10 22:28, Alexander Bakst wrote:
>> (Switched my non-work e-mail)
>>
>> Well, I actually am using a fancy apple G5 - I belive it is a power
>> 970fx, not sure though. I'm not even sure how to check the current clock
>> frequency of my cpu. To be honest, it would be fantastic if it weren't
>> running at the highest speed, since I would like to save power. I don't
>> know if the kernel will tell the cpu to snooze/nap.
>
> Hm, it is a 970FX @ 2000.36 MHz.
> I'm confused that there is no smu?
> Maybe this one lacks the smu. According to the docs I have, the 7,3 
> behaves similar to the 7,2. And the 7,2/3 do not have an smu. The cpu 
> speed is controlled via freq and volt. And some nasty gpio interrupts 
> @ Nathan :) This bites me currently!
>
> Can you boot this machine into OS-X and see what it tells you about 
> the CPU speed?
>
> Hopefully I'm wrong :) 
The CPU speed is only low if you break into OF at boot. If you just let 
it autoboot on PowerMac 7,2 and 7,3 (and RackMac 3,1), it has the 
correct value. Unfortunately, Andreas is right that your machine is 
SMU-free, and so there is no fan control at the moment. I believe he is 
working on fixing that, and, if you are feeling ambitious, you could try 
working together. It should be fairly straightforward, and your other 
options, unfortunately, are waiting or falling back to Debian.
-Nathan