[P1] new iBook problem...

[Joe Jones]

The iBook has a copper thermocouple that helps to shift the heat from 
the cpu in the centre of the logic board to the heat sink and vent at 
the rear just underneath the hinge. The little fan cools this heat sink 
and vents the air out of the back. As far as I can tell, it's almost 
always on, but very quiet.

I often work this thing pretty hard and there is no difference in sound 
when it's cold and when it is very warm to the touch on the underside, 
and on the left wrist support where the HD lives.

Joe

On Sunday, May 4, 2003, at 01:22 Europe/London, Brian Pearce wrote:

>> There's a thought! I hadn't gone down that road....how long would you 
>> think the fan should run? More than 15 minutes?
>
> The PowerBoook models have fans, but I believe even the more recent 
> iBooks are still cooled by convection. (This is one reason you can't 
> operate an iBook while the lid is closed, for example, and another 
> reason the iBooks still use the G3 processor, which runs cooler than 
> the G4.) This is why the situation you describe, if it's attributable 
> to heat building up inside, could be a bigger problem waiting to 
> happpen.
>
> BRIAN/bpearce at cloud9.net
>
>
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