Macbook running hot fan won't shut off

Check Activity Monitor to see what process is using all your CPU power. This will give you an indication where your problem is. If it's an app, you can kill it and troubleshoot/re-install it. If it's an operating system issue, post back and someone more knowledgeable about such specific things can help.

One of your applications may be running too much. Make sure you're not running anything in the background.

did u change the battery settings or energy saver cause that happened to me and i just reset those to default and it seemed to stop

and or it might be waht they said

u must be running a program that uses allot of cpu. im suprised because wen my fans are running fast they dont seem to eat away the juice on my batt.

DJJONES said:

u must be running a program that uses allot of cpu. im suprised because wen my fans are running fast they dont seem to eat away the juice on my batt.

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wtf this never happens to me and i have lik flash 8 photoshop cs3 firefox itunes and lik msn running half the time and lik bareley the fans go on

yep

i had the same thing ... brick oven hot and fan hollering. cpu's were clipped. all apps quit i didn't find the culprit. rebooted and cpu's are normal. starting to cool down now though the fans are still working. thanksall.

Try onyx

Try the free application, onyx. Mine was running hot and I had tried everything I could read to try. Just tried onyx in it's default options in the automated mode and I now have a cool quiet machine. Not sure which step was the fix, but I'm pleased.