i just realized something frightening

[admin]

i have no idea what you're talking about
the fans are controlled by software, not firmware
if there is no software running to control the fans, they run at full 
speed
ubuntu obviously has software that controls the fans and this software 
would be one of the very first things it loads into memory
it just seems though that it doesn't "control" the speed of the lower 
fans as per the load on the lower cpu
it just keeps it running at a low speed









On 21/09/2005, at 5:44 AM, Hodgins Family wrote:

> Good afternoon!
>
>> this is just it, the fan speed is controlled completely by the os
>> if you install an os that has no fan support at all, the fans work at 
>> full speed, and now that's FRIGHTENING!
>> it happens when you boot from the apple diagnostics disc - the fans 
>> spins frighteningly fast
>
> I don't know much about Apples, sorry. But I yanked this out of a 
> forum at http://forums.macnn.com/archive/index.php/t-227686.html
>
> "09-10-2004, 05:18 PM
> if the thermal sensor on the fan is screwed up, the fans will run at 
> high speed. you need the Apple Service Diagnostics CD to fix this. I 
> know of no other way.
>
> If you live close to an Apple Store, go down and just tell them to run 
> it. Don't worry about them protesting... if you are under warranty or 
> AppleCare, just keep demanding they do it."
>
> Is it possible that you have a "thermal sensor on the fan that is 
> screwed up" and it is not an OS problem at all? In other words, if you 
> reinstall the Mac OS does the fan issue go away?
>
> Rob
>
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