iMac G5 fan won't stop blowing

1. paintedjazz@gmail.com - 9 July 2007

   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.

2. Paul Fuchs - 9 July 2007

   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

3. Jolly Roger - 9 July 2007

   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

4. paintedjazz@gmail.com - 9 July 2007

   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.

5. matt neuburg - 10 July 2007

   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

6. Eric Lindsay - 10 July 2007

   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.

   http://www.ericlindsay.com