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fooderater 01-30-2009 06:07 PM

Fan runs all the time ... except when it is hot
So, my fan runs almost all of the time. It is usually above 6000 rpm. The exception? When it is hot. Then it runs around 2000 rpm.

Any ideas? It has been this way as long as I can remember, I just haven't ever done anything about it.

You would think the thresholds would be flipped....

ADKhikerVW 01-30-2009 06:12 PM

No idea why they would be flipped like that, but have you checked Activity Monitor to see if there are any processes that are eating up your CPU?

fooderater 01-30-2009 06:23 PM

Quiet (Sometimes)

Loud (Most of the time)

ADKhikerVW 01-30-2009 06:29 PM

Thats wierd, since it is only the left fan which is going nuts. Did you try resetting your SMC and PRAM?

fooderater 01-30-2009 06:54 PM

Just reset both - no change

chscag 01-30-2009 07:55 PM


Originally Posted by fooderater (Post 796962)
Just reset both - no change

You've got a defective fan and\or possibly a thermal sensor which is not working right. Either way, it's probably best to let the genius bar at Apple take a look at it. Is you machine still under warranty?


fooderater 01-30-2009 07:56 PM

That equates to them sending my machine away right?
It is still under warranty....

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