New MacBook pro USB port question

Discussion in 'MacBook Pro' started by nippyjun, Dec 3, 2011.

  1. nippyjun macrumors 65816

    Joined:
    Jul 26, 2007
    #1
    I have a new late 2011 MacBook pro.

    I installed a new ssd.

    I had previously made a lion USB key so I could install it to a fresh new drive like this.

    I used the USB port closer to the front of the machine and it wouldn't read the drive.

    The USB port closer to the back read the USB key just fine and I installed lion.

    I'm wondering if the front USB port is defective or is this normal behavior.

    Once lion was installed I put in different USB keys and USB hard drives in both USB ports and both worked fine for reading and writing all of them.

    Anyone else encounter this.
     
  2. iThinkergoiMac macrumors 68030

    Joined:
    Jan 20, 2010
    Location:
    Terra
    #2
    One port may have more power than the other. What is your "USB key"? Sounds like a thumbdrive to me, in which case that shouldn't matter.
     
  3. nippyjun thread starter macrumors 65816

    Joined:
    Jul 26, 2007
    #3
    Yes. It is a thumb drive.
     
  4. iThinkergoiMac macrumors 68030

    Joined:
    Jan 20, 2010
    Location:
    Terra
  5. nippyjun thread starter macrumors 65816

    Joined:
    Jul 26, 2007
    #5
    This morning I tried it again and it actually worked in the front port.

    Maybe the firmware update that I did yesterday fixed the problem.
     

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