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Cooling fan on iMac

Message #1 - Posted 2010/10/05 - Peter James

The cooling fan on my iMac 3.33 GHz Intel Core 2 Duo has suddenly come on from start up and is running very fast and is also very loud. Can anyone advise me what to do with this. The machine is still under warranty and is only 6 months old.

Peter

He spoke with a certain what-is-it in his voice, and I could see that, if not actually disgruntled, he was far
from being gruntled.
P.G. Wodehouse 1881 -1975

Message #2 - Posted 2010/10/05 - Peter Ceresole

Peter James wrote:

The cooling fan on my iMac 3.33 GHz Intel Core 2 Duo has suddenly come on from start up and is running very fast and is also very loud. Can anyone advise me what to do with this. The machine is still under warranty and is only 6 months old.

That appears to be controlled in firmware. Is there a new version you could apply?

Peter

Message #3 - Posted 2010/10/05 - Claude V. Lucas

Previously, Peter Ceresole wrote:

Peter James wrote:

The cooling fan on my iMac 3.33 GHz Intel Core 2 Duo has suddenly come on from start up and is running very fast and is also very loud. Can anyone advise me what to do with this. The machine is still under warranty and is only 6 months old.

That appears to be controlled in firmware. Is there a new version you could apply?

Time to try a SMC reset...

<http://support.apple.com/kb/ht3964>

Message #4 - Posted 2010/10/05 - Rowland McDonnell

Claude V. Lucas wrote:

Peter Ceresole wrote:

Peter James wrote:

The cooling fan on my iMac 3.33 GHz Intel Core 2 Duo has suddenly come on from start up and is running very fast and is also very loud. Can anyone advise me what to do with this. The machine is still under warranty and is only 6 months old.

That appears to be controlled in firmware. Is there a new version you could apply?

Time to try a SMC reset...

<http://support.apple.com/kb/ht3964>

And if that doesn't work, send it back for repair.

Rowland.

Remove the animal for email address: rowland.mcdonnell@dog.physics.org Sorry - the spam got to me
http://www.mag-uk.org http://www.bmf.co.uk UK biker? Join MAG and the BMF and stop the Eurocrats banning biking

Message #5 - Posted 2010/10/06 - aRKay

Previously, Peter James wrote:

The cooling fan on my iMac 3.33 GHz Intel Core 2 Duo has suddenly come on from start up and is running very fast and is also very loud. Can anyone advise me what to do with this. The machine is still under warranty and is only 6 months old.

Peter

I had the same problem on an old Intel iMac and carried it to the Genius Bar. They ran a quick test and it said the center fan was failing and they replaced it under Apple Care for me.

Take it in for check

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