high pitched noise.

[LeftoverCrack]

over the past few weeks i have heard a high pitched whine in my house and i couldn't seem to find the source. Today i leaned down to pick up something off the ground and my ear was level with my macbook and i heard it! coming from the top left corner of my keyboard there was a very high pitched whine. not fan noise, a deafening ring.
anytime i type a key or move the mouse it goes away, then the second i stop mousing or typing it starts again...
i've tried restarting. googling around and i didn't find anything?
should i call applecare about this? or is this a common problem that is non-fixable?

 

[bmcgrath]

Have you a Core Duo or Core2 Duo Mac?

 

[LeftoverCrack]

core 2 duo mid 2007 macbook. 2ghz.

 

[bmcgrath]

Hmm ok. I was always under the impression this was only a Core Duo thing.

But as far as I know the noise is because of the Intel CPU trying to save power. I could be wrong. If it's really really loud and it's seriously buggin you then maybe drop Applecare a call see what they say.

 

[LeftoverCrack]

it is quite loud, and why does it go away when i type or mouse?

 

[bmcgrath]

I think it's because when you type or move the mouse it starts to use a little more cpu and turns of a certain amount of the powersaving which causes that whine.
I know when I connect my bluetooth mighty mouse the whine goes away. But mine is not very loud thankfully.