Is something wrong with my 2013 iMac?

Discussion in 'iMac' started by ChitoCrisis, Oct 4, 2013.

  1. ChitoCrisis macrumors member

    Joined:
    Jan 9, 2011
    Location:
    California
    #1
    I just got it in the mail yesterday and I've been using it non-stop (except for sleep and going to work). I think there is something wrong with it. One of the USB ports doesn't seem to work. Not only that but it looks like tiny sparks start appearing as the usb touches the port. I know this is not normal. I should contact Apple and get mine replaced? Can I do this at the store?

    Edit: Ok, I think I know what it is. It doesn't appear to be the iMac but the usb cable that came with the bluray drive I bought.
     
  2. Aameiel macrumors regular

    Aameiel

    Joined:
    Jan 22, 2011
    Location:
    Cape Coral, FL
    #2
    If you're seeing sparks at the usb port then i would return it asap.
     
  3. kylepro88 macrumors regular

    Joined:
    Jul 30, 2006
    Location:
    Atlanta, GA
  4. X-Ravin macrumors regular

    Joined:
    Nov 30, 2008
    #4
    Sounds like the solder for the jack short circuited the connections. Would explain a spark and a non functional port.
     
  5. jg321 macrumors 6502

    Joined:
    Aug 29, 2012
    Location:
    UK
    #5
    Also, while tiny sparks sounds bad, I've seen it before with powered USB devices against the Alu on my MBP. If it doesn't work in any port, and other USB devices work in those ports, I'd agree that it's probably the cable or the downstream device as you say.
     
  6. MrGimper macrumors 601

    MrGimper

    Joined:
    Sep 22, 2012
    Location:
    Andover, UK
    #6
    I'd second the sparks from powered USB devices. I have 2 powered USB hubs that spark on the iMac enclosure when I fiddle around to plug them into the iMac.
     
  7. jg321 macrumors 6502

    Joined:
    Aug 29, 2012
    Location:
    UK
    #7
    I believe it's to do with ground looping - in that both the case and the shielding of the USB port are grounded, and when they make contact the small amount of current flowing creates sparks.

    I've also seen it with VGA and HDMI cables, and even TV aerials!
     
  8. fhopper macrumors member

    fhopper

    Joined:
    Sep 18, 2007
    Location:
    Wichita Ks.
    #8
    Put your tongue on the case and hold a cold water pipe with one hand; now plug.
     
  9. tug macrumors 6502

    Joined:
    Feb 3, 2010
    Location:
    loughborough. u.k.
    #9
    :D:D:D:D:D:D:D:D:D:D LOL. that made my morning, cheers for that:)
     

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