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    High pitch whine noise on new MacBook

    I'm going to go pretty soon - I still haven't gone - If you turn the brightness all the way down for about 5 seconds, you can then turn it back up and the problem has [temporarily] gone away.
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    High pitch whine noise on new MacBook

    The only thing I would think I have to do is remove my hard drive ... simple enough I would hope.
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    High pitch whine noise on new MacBook

    Actually I AM going to take it to the Apple store and insist they replace the backlit LED display - That little stinker can get pretty loud and annoying ... i'm going to guess you're a little on the younger side because it's quite possible that an older set of ears might not hear a frequency...
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    High pitch whine noise on new MacBook

    High pitched whining sound from LED I'm having the same EXACT problem as you. My 13" Macbook (aluminum case) was on for about 2 hours or so and the high pitched sound started. The most ANNOYING ... and it goes down as you lower the brightness. The only thing that fixed it was rebooting -...