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iMac G5 fan won't stop blowing

Message #1 - Posted 2007/07/09 - paintedjazz

Hi,

Usually, I only hear this fan blowing when I have a CD or DVD in the optical drive. Now, however, I have removed the DVD and the fan continues blowing even after a reboot. Is there anything I can do to stop this or does the iMac need to be taken in for AppleCare hardware support?

Thanks.

Message #2 - Posted 2007/07/09 - Paul Fuchs

<paintedjazz wrote:

Hi,

Usually, I only hear this fan blowing when I have a CD or DVD in the optical drive. Now, however, I have removed the DVD and the fan continues blowing even after a reboot. Is there anything I can do to stop this or does the iMac need to be taken in for AppleCare hardware support?

Thanks.

Does the fan run immediately after boot completion even if the machine is cold?

Nothing doth more hurt in a state than
That cunning men pass for wise.
--Francis Bacon

Message #3 - Posted 2007/07/09 - Jolly Roger

On 2007-07-09 17:13:30 -0500, paintedjazz@gmail.com said:

Usually, I only hear this fan blowing when I have a CD or DVD in the optical drive.

How sure are you it's not the optical drive itself you are used to hearing?

JR

Message #4 - Posted 2007/07/10 - paintedjazz

On Jul 9, 4:09 pm, Paul Fuchs wrote:

Does the fan run immediately after boot completion even if the machine is cold?

On Jul 9, 4:31 pm, Jolly Roger wrote:

How sure are you it's not the optical drive itself you are used to hearing?

Hey, thanks Paul and Jolly Roger. I solved the problem by opening up the iMac -- it was one of the original in which you could easily lift the lid off the rear of the LCD. It was almost clean as a whistle and I nearly closed it right up. However, I decided to use an air gun to clean it thoroughly anyway and,

voila, ...

when I booted it up again, it purred quieter than a kitten.

Thanks again.

Message #5 - Posted 2007/07/10 - matt neuburg

<paintedjazz wrote:

On Jul 9, 4:09 pm, Paul Fuchs wrote:

Does the fan run immediately after boot completion even if the machine is cold?

On Jul 9, 4:31 pm, Jolly Roger wrote:

How sure are you it's not the optical drive itself you are used to hearing?

Hey, thanks Paul and Jolly Roger. I solved the problem by opening up the iMac -- it was one of the original in which you could easily lift the lid off the rear of the LCD. It was almost clean as a whistle and I nearly closed it right up. However, I decided to use an air gun to clean it thoroughly anyway and,

voila, ...

when I booted it up again, it purred quieter than a kitten.

Letting the iMac sit without the power cord in it for five minutes or so causes some internal resetting to take place, so that may have helped as well. m.

matt neuburg, phd = matt@tidbits.com, http://www.tidbits.com/matt/ Tiger - http://www.takecontrolbooks.com/tiger-customizing.html AppleScript - http://www.amazon.com/gp/product/0596102119 Read TidBITS! It's free and smart. http://www.tidbits.com

Message #6 - Posted 2007/07/11 - Eric Lindsay

Previously, paintedjazz@gmail.com wrote:

Hey, thanks Paul and Jolly Roger. I solved the problem by opening up the iMac -- it was one of the original in which you could easily lift the lid off the rear of the LCD. It was almost clean as a whistle and I nearly closed it right up. However, I decided to use an air gun to clean it thoroughly anyway and,

voila, ...

when I booted it up again, it purred quieter than a kitten.

May have just been the power down that reset the fans.

However, the grill at the bottom of the iMac does get clogged with crap after a while, especially in a dusty environment. External cleaning of the grill a few times a year is helpful, especially if you live in a warm climate.

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