powerbook g3 internal fan + YDL 3.0.1 ?

[Greg Hamilton]

I've never heard the fan turn on in my iBook either. Temp hovers around 
low 20s and creeps up to 40ish if it's busy for a long time (eg. kernel 
compilation).

If they let me design laptops I'd probably put the fan under hardware 
control but I gather Macs do it from software, so there must be 
something compiled into the kernel, a kernel module or a daemon that 
monitors temperature and  turns the fan on when required. Does anybody 
know how this works? Is it possible to toggle the fan on/off manually 
to verify it's working. What temp should it turn on?

Enquiring minds want to know Charles.

On 29/01/2004, at 1:11 PM, James Mandy wrote:

> Hi,
>
> Im running a lombard G3 which I've recently installed YDL 3.0.1 onto...
>
> I've noticed the internal fan never seems to come on. /proc/cpuinfo 
> shows an
> average of 55-57C (uncalibrated)
>
> it sometimes shoots upto around 65C when really working the CPU...
>
> the underside of the machine gets very hot.
>
> does YDL have fan control? is this a software or hardware controlled
> internal fan? perhaps I need to replace the fan. hrmmm.
>
> I never noticed when it had MAC OS on it (got the laptop, used the MAC 
> OS
> for a day, binned it, installed YDL)
>
> If I need to replace the fan, is there any kind of directions on what 
> i need
> to dismantle to get to it? I can see it under the keyboard however it 
> doesnt
> look like it's going to come out that way...
>
> Many thanks,
> James
>
> _______________________________________________
> yellowdog-general mailing list
> yellowdog-general@lists.terrasoftsolutions.com
> http://lists.terrasoftsolutions.com/mailman/listinfo/yellowdog-general
>