MBP (older model) making funny noises near fan duct

Discussion in 'MacBook Pro' started by potlatch, Feb 9, 2009.

  1. potlatch macrumors member

    Joined:
    Dec 5, 2006
    #1
    My MBP is making funny noises when I turn it on. It's been happening a month or two now.

    I've assumed it's dust in a fan which gets dislodged after time. As it becomes more regular, it seems vaguely connected with temperature. After the MBP has been on a while, the noise goes.

    This evening, I noticed that it's directly related to the brightness of the screen; if the screen is off or very low, the sound is less bad; towards middle-brightness, the noise is worse; and at full brightness it's completely absent.

    Does anyone know what's causing this? Should I worry about it, or is there anything I can do?
     
  2. tobyg macrumors 6502a

    Joined:
    Aug 31, 2004
    #2
    Sounds like it might be the inverter in the display.

    Still have some applecare left? If so, take it in.
     
  3. DjStiky macrumors member

    Joined:
    Apr 19, 2007
    #3
    I have the same problem with my 15" Macbook Pro

    Got an appointment with a Genius at the store, they ordered me a new screen.
     
  4. potlatch thread starter macrumors member

    Joined:
    Dec 5, 2006
    #4
    I'm well past the warranty and no Applecare. The machine's a few years old.

    Is there anything else it could be? Dust/fluff, or anything that doesn't require an unemployed person shelling out loads of cash for something to be fixed.

    How much does this screen replacement cost anyway?
     

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