My fan makes loud and very strange noises.

Hi again,
My fan makes loud and very strange noises. Is there any cure for that?
Thank you!
Markus

Hmm... that is strange. There are a couple reasons that I can think of.
First, go to System Preferences -> Energy Saver -> Processor Performance. See what its set to. If it is currently set to Highest, your fan could be going more often. Turn it down to Reduced or Automatic. Note if there is any difference.
Secondly, are you all up to date on software updates? The last step was to see if it was a software issue. If it isn't, then you probably have a defective fan. AppleCare?
Now, you would open your PowerBook. Look in the Apple docs (Support - Manuals) to find how to do it for yourself, or take it to a shop or Apple Store and have them do it. Safest option.
Look at your fan. Has it come free of the anchor and is hitting against the wall or fan surround?
Lastly, try keeping the PowerBook in a open, ventilated area. The fan will power up less if the computer stays cooler. For a possibly irritating but possibly helpful option, purchase a product that lifts the PowerBook off your lap or desk. I think Rain Design makes a good one.
Good luck!

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http://i25.tinypic.com/a337o2.png
http://i31.tinypic.com/bgojma.png
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http://i25.tinypic.com/slpd3r.png
http://i28.tinypic.com/28vvqc5.png
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My fan makes loud and very strange noises.

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