Hard drive scrape?

Discussion in 'MacBook Pro' started by mackage, Apr 10, 2011.

  1. mackage macrumors 6502

    Joined:
    Apr 6, 2011
    #1
    Does anyone hear their hard drive (HDD) scrape (make a little noise) sometimes when they move their computer around? It has happened to me like 5 times tonight. I had never noticed it before.

    Is this normal?
     
  2. borisiii macrumors 6502

    Joined:
    Jul 4, 2010
    #2
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    Yes, that's the sudden motion sensor (SMS). It's designed to protect your hard drive if you drop your laptop. The click/scrape noise is the hard drive quickly parking its head. The newer models (2010 and later) are a bit trigger happy when it comes to acivating the SMS, but still it may suggest you are handling your MacBook a bit too rough.
     
  3. mackage thread starter macrumors 6502

    Joined:
    Apr 6, 2011
    #3

    I am referring to a late 2008 version. All I am doing is tilting it sideways slightly when taking it off my lap to get off the couch. That isn't considered rough is it?
     
  4. NZed macrumors 65816

    NZed

    Joined:
    Jan 24, 2011
    Location:
    Canada, Eh?
    #4
    Its definitely the SMS

    http://en.wikipedia.org/wiki/Sudden_Motion_Sensor

    It comes with all Apple portables starting from the 2005 PowerBooks.

    Thats not rough at all.
     
  5. Macsavvytech macrumors 6502a

    Macsavvytech

    Joined:
    May 25, 2010
    #5
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    Wow I always thought it was me wrecking the HDD...
    Feel a little safer now, just goes to show you learn something new everyday.
     

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