whole keyboard side slightly vibrates? (PB)

Discussion in 'Mac Basics and Help' started by orijinal, Nov 1, 2005.

  1. orijinal macrumors 6502

    orijinal

    Joined:
    Jun 6, 2005
    #1
    on the palm rest and even right above the keyboard on the powerbook, if you barely/gently move your hand across it, does it sometimes feel like vibrating under? this only happens sometimes to me, and i always wondered why.
     
  2. Eniregnat macrumors 68000

    Eniregnat

    Joined:
    Jan 22, 2003
    Location:
    In your head.
    #2
    If you unplug the adapeter does the "vibration" go away? IF so your feeling a bit of a charge diffrencial between the computer and your body.

    If you have an unballanced DVD or CD, vibration can be an issue, otherwise it is just the HD.

    Or your just surfing too much porn. ;)
     
  3. Scarlet Fever macrumors 68040

    Scarlet Fever

    Joined:
    Jul 22, 2005
    Location:
    Bookshop!
    #3
    yeh my powerbook does the same thing. Its not vibration, its static passing from the metallic case to your body. I sometimes find that putting my hand over the case while a finger is on the power button helps. I think i read that somewhere, that to discharge static when installing RAM you can touch the power button to make it go away. I figured that moving the static into the computer via the power would have the same effect.

    Another fix is as the above post; try taking the power out for a few minutes
     
  4. orijinal thread starter macrumors 6502

    orijinal

    Joined:
    Jun 6, 2005
    #4
    lol alright thanks ill try em out

    i dont know if it's static though, becuase this sensation can be felt for long periods of time.

    i want to say that i hear a tiny buzzing when i feel this, but don't quote me on that
     
  5. orijinal thread starter macrumors 6502

    orijinal

    Joined:
    Jun 6, 2005
    #5
    when i pull the adapter out, there is still vibration for a while.

    when it is plugged/pulled out however, and i touch the power button, the vibration subsides drastically.

    seems to be it
     
  6. Makosuke macrumors 603

    Joined:
    Aug 15, 2001
    Location:
    The Cool Part of CA, USA
    #6
    I did some experiments with a new AL PB a little while ago, and here's the trick:

    If it only feels like it's vibrating when you actually move your hand across the surface, it's your *hand* vibrating, not the PowerBook.

    The thing is, the just-slightly-bumpy texture of the surface causes your hand to sort of skip across it (a microscopic version of the bump-bump-bump effect of draggin your hand across rubber), which ends up feeling like vibration. I'm nearly certain this is what it is, as when I did the experiment it was the same even if the PowerBook was off, unplugged, and with no battery, so it *couldn't* have been electrical or mechanical.

    Try it and see if this is what's going on for you. Wigged me out at first, too.
     

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