My Powerbook G4 make some fan noise. Please help!

Question

From last night my PowerBook G4 makes fan noise. It sounds like fanning sound when the computer is overheated during hot summer. But my room temperature is aroung 70 degree.
It happens when I open many windows but I need to open them to trade some at TDamertrade.com site. To check other sites too.
I would very appreciate any suggestions I can try to fix this fan sound.

Answer 1

It is possible that you are having these issues because you installed the MacBook Pro SMC Firmware Update 1.3 by mistake:
*http://support.apple.com/downloads/MacBookPro_SMC_Firmware_Update_13*
I remember when this was released that PowerBook G4 owners were seeing this update via their Software Update application. Sometimes I just install those updates without closely reading what they are for exactly. Anyway, I know it says for high work loads, but you would be surprised how easily the fans will turn on high just from simply web browsing.
I suggest that you first try resetting the PMU:
*If the computer is on, turn it off.*
*Disconnect the AC Adapter and remove the computer's battery.*
*Press and hold down the power button for 5 seconds and then release the button.*
*Reconnect the battery and AC Adapter.*
*Press the Power button to restart the computer.*
If the above works for you (great), if not, try resetting PRAM and NVRAM:
*Shut down the computer.*
*Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.*
*Turn on the computer.*
*Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.*
*Hold the keys down until the computer restarts and you hear the startup sound for the second time.*
*Release the keys.*
If the above works for you (great), if not, try archive and installing:
*http://support.apple.com/kb/HT1710*
If the none of the above worked for you (not so great), do the following:
Go to your closest  Store next week after making an appointment with a Mac Genius:
*http://www.apple.com/retail/geniusbar/*
I hope that I helped you solve your problem, but do post back if not and I will help you narrow down what is going on even further. Personally, I feel that I am better than going to see a genius because most of them are just trained for Intel machines these days out in CA, where as, I know all the way back to PPC and Mac OS 7. Best of luck.