Apr 7, 2009, 06:47 PM
What would cause a Ibook to just randomly make the fans run so high that it sounds like a vacuum or an xbox 360. All the sound is comming from the back port by the lcd screen.
Apr 7, 2009, 06:51 PM
High CPU usage which causes heat could cause high fan speeds.
And the fan on the iBook sounds really like a vacuum cleaner. At least mine did (G4).
Look at Activity Monitor (Applications > Utilities) and be sure to show All Processes.
Also you can use iStat (menu or widget at islayer.com) to show your CPU temperature.