What could this sound be inside my unibody?

Discussion in 'MacBook Pro' started by Kronie, Dec 15, 2009.

  1. Kronie macrumors 6502a

    Kronie

    Joined:
    Dec 4, 2008
    #1
    I have a strange sound that my unibody has started to make. Every once in a while, maybe every few minutes? My unibody makes this chirping sound. It almost sounds like a bird outside in the trees. In fact for a while I thought is WAS a bird for a while.

    Its hard to type a sound but its like a high pitched "dinit" just once and then its quiet for a while then...."dinit"

    Its not effecting performance at all.

    I did upgrade my stock drive to a 500 GB seagate a few months back but cant imagine how that would effect anything.

    Any ideas?
     
  2. GoCubsGo macrumors Nehalem

    GoCubsGo

    Joined:
    Feb 19, 2005
    #2
    I saw this discussed here before. I can't recall if it had to do with the hard drive.
    Happy reading.
     
  3. Kronie thread starter macrumors 6502a

    Kronie

    Joined:
    Dec 4, 2008
    #3
    Thanks for the links.

    I just got off the phone with our local Mac repair shop.

    The tech told me (even before I told him what kind of drive I have) that the 500 GB 7200 RPM Seagates make a sound just like I have. Its the parking of their heads. I have the same drive.

    He said I could also take the drive out and start the laptop and if its still making the sound then its obviously something else. Maybe a fan or possibly a speaker.
     
  4. t0mat0 macrumors 603

    t0mat0

    Joined:
    Aug 29, 2006
    Location:
    Home
    #4
    What exact drive did you use?(500 GB seagate) did it have drop detection (sudden motion sensor or similar)
    Also - have you got all the Apple updates? The drive noise was in part resolved through an update they put out.
     
  5. Kronie thread starter macrumors 6502a

    Kronie

    Joined:
    Dec 4, 2008
    #5
    Yea, its the Seagate Momentus. 500GB @7200 RPM. It does have drop detection, I think. That's another thing the tech said it may be. Maybe shake the laptop and see if it goes away?

    My laptop is running the latest version of snow leopard and I upgraded the EFI. Its definitely the drive I put my ear to the laptop last night, waited and heard it.
     
  6. Neo-Tech macrumors regular

    Joined:
    Jun 19, 2009
    #6
    If the drive does have drop detection, you should turn off Apple's Sudden Motion Sensor using Terminal, as if a drive already has drop protection, it'll conflict with the Apple one thus causing issues similar to yours.

    :cool:
     
  7. iLog.Genius macrumors 601

    iLog.Genius

    Joined:
    Feb 24, 2009
    Location:
    Toronto, Ontario
    #7
    Is that fact? There has been a lot of talk but with no concrete answer. I guess it could make sense but Apple has shipped those who ordered a 7200 RPM drive with G-Shock and I highly doubt those Mac's with the G-Shock drive have their motion sensor disabled by Apple which makes me believe that it shouldn't make a difference at all. Just doesn't make sense for Apple to do something that would conflict and to think Apple would do you a favor by disabling their motion sensor?
     

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