Sparks from my aluminium macbook

Discussion in 'MacBook' started by morrisman1, Apr 10, 2009.

  1. morrisman1 macrumors 6502

    #1
    i noticed this morning when i plugged in a (full size, ac powered) external harddrive that there were sparks generated between the aluminium casing of the macbook and the outer metal piece on the usb plug. If i rub the usb port along the aluminium then i can make sparks.

    any ideas on why this is happening?
     
  2. pellets007 macrumors 6502a

    pellets007

    Joined:
    Jan 28, 2009
    Location:
    New York
    #2
    They're both conductors, one of which has a charge. Did you touch the USB (metal part) and attempt to recreate this static effect?
     
  3. bambooshoot macrumors newbie

    Joined:
    Jul 20, 2009
    #3
    This happens to me too.
    Is it dangerous? What should I do?
     
  4. clyde2801 macrumors 601

    clyde2801

    Joined:
    Mar 6, 2008
    Location:
    In the land of no hills and red dirt.
    #4
    Not rub the usb port like that anymore, unless it's sitting on top of the genius bar.
     
  5. bambooshoot macrumors newbie

    Joined:
    Jul 20, 2009
  6. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #6
    No.

    All they'll tell you is to quit electrically grounding your USB cables on the case of your computer.
     
  7. bambooshoot macrumors newbie

    Joined:
    Jul 20, 2009
    #7
    I just figured they should have some kind of protection against this kind of thing. It's not like I'm doing anything weird, just trying to plug in a hard drive, and there's fricking sparks coming from my computer. Doesn't seem right to me.
     
  8. Ace134blue macrumors 6502a

    Ace134blue

    Joined:
    Sep 17, 2009
    #8
    Just turn the lights off and have at it :D.


    Jk Dont do that
     
  9. ahm macrumors member

    Joined:
    Feb 14, 2009
    #9
    That's not normal.

    Show your friends a cool new way to start a camp fire.
     
  10. BlackiBook macrumors 6502

    BlackiBook

    Joined:
    Jan 1, 2009
    Location:
    Norman, Oklahoma
    #10
    I don't get the same results :( oh wait I mean... :)
     
  11. NewMacbookPlz macrumors 68040

    NewMacbookPlz

    Joined:
    Sep 28, 2008
    #11
    I've never had this problem. Then again, I'm not rubbing my USB connector on the case of my MacBook either.
     
  12. bambooshoot macrumors newbie

    Joined:
    Jul 20, 2009
    #12
    Jesus it's not like I'm rubbing it deliberately on the casing to act like i've got frickin jedi powers; just plugging a usb cable into a usb port. So can I get some help on this or not?
     
  13. Buskape macrumors 6502

    Buskape

    Joined:
    Dec 10, 2008
    Location:
    NGC 4889
    #13
    Happens to me too with an external hd that has it's own ac adapter don't know how to fix this...

    and for christ sake people, it's not like the OP was rubbing it on purpose, do you people plug in your usb peripherals perfectly aligned in on the port on the first go every freaking time?? :rolleyes:
     
  14. svndmvn Guest

    Joined:
    Nov 6, 2007
    Location:
    Italy
    #14
    If possible, does plugging in the USB and then the ac adapter solve the problem?
     
  15. crackbookpro macrumors 65816

    crackbookpro

    Joined:
    Feb 25, 2009
    Location:
    Om nom nom nom
    #15
    I hear ya man. They should not be doing this, but it does happen. There is nothing you can do about it, just be cautious about things of this nature - it happens with a lot of other metal-to-metal items besides MacBooks. Not a huge ordeal, just remember that this could happen.

    ...be careful :cool:
     
  16. PracticalMac macrumors 68030

    PracticalMac

    Joined:
    Jan 22, 2009
    Location:
    Houston, TX
    #16
    1 question:

    Is the Unibody plugged in to A/C power when you do this?

    If no, then it is somewhat normal, but you have to be careful to make sure to touch the outer shell of the USB to MB case first to discharge the power.

    If yes, then that external drive enclosure has a serious ground issue and should be replaced.

    Who makes that USB external HDD drive case?
     

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