MBP 13" Hard Disk "Ping" Sound

Discussion in 'MacBook Pro' started by ArmCortexA8, Sep 4, 2010.

  1. ArmCortexA8 macrumors 6502a

    Joined:
    Feb 18, 2010
    Location:
    Terra Australis
    #1
    Hi all

    I have a noticed a couple of times when I move touch the MBP, I will hear what sounds like a hard disk "ping" sound, even though I have the hard disk sleep mode disabled on batter / power - everything functions perfectly though. It sounds like something tapping metal - only one "ping" sound (not constant ticking). Mine has the Hitachi 250GB hard disk. Should I be concerned and what is it?
     
  2. MrCheeto macrumors 68030

    MrCheeto

    Joined:
    Nov 2, 2008
  3. ArmCortexA8 thread starter macrumors 6502a

    Joined:
    Feb 18, 2010
    Location:
    Terra Australis
    #3
    Just did my own simple troubleshooting, its the Sudden Motion Sensor in the Hitachi drive. I sat the laptop on a bed and put one finger on the left and right of the frame around the keyboard and pressed suddenly - tick. Im use to SSD, but even my WD drives never made this sound, must be a Hitachi thing.
     
  4. MrCheeto macrumors 68030

    MrCheeto

    Joined:
    Nov 2, 2008
    #4
    It is the Sudden Motion Sensor, an Apple technology. Hitachi's seem to be very loud, now, for unknown reasons.
     

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