My power brick started making an insane noise kind of like that. I
smacked it around a bit and it seems to have stopped. Sounded like
something with the fan but who the hell knows. Freaked me out. I'm
somewhat afeared of xbox customer service to say the least. You'll
have to let us know when you get your xbox back.
Do you play any team fortress 2? I hear all the cool kids are doing
it. Just out of curiosity, how did you find this anyways? Kind of
assumed it wasn't going to go anywhere so I stopped paying attention.
Hence the delayed response - it's hooked to an email I don't check
that often unless I have a good reason.