powerbook buzzing

"powerbook buzzing"

Yeah man, my iMac's wicked too!

Has it always buzzed? In the PowerBooks, from what I know, the fan runs pretty much all of the time although I might be wrong on that.

As far as I know, yes, the HD is under the trackpad on the 15"ers (I'm sure about rev. D, not positive about rev.C but i would assume all the G4 15" pb's are arranged the same)

I have a strange buzzing noise also on my revC which is about a year old, very similar to what you describe. Started about a month ago and is quite loud when I move it and generally only seems to happen once I've been running for a while and the computer is getting hot so I presumed it was fan-related. From what I could tell it was coming from up at that thin strip above the keyboard though rather than by the trackpad so maybe there is a different source to the problem.....

My 12 inch Powerbook has started buzzing also, but only when i have it on an angle, when it's flat it's fine, but if I have it on my lap, say a 45degree angle, it starts to buzz and will sometimes freeze, but it will unfreeze and work fine again as soon as I put it flat again. It has my pretty concerned I called apple and they want $50 just to troubleshoot it over the phone. Could it be something loose inside the computer???