Testing USB Ports

Discussion in 'Mac Pro' started by thunderclap, Apr 16, 2014.

  1. thunderclap macrumors 6502a

    thunderclap

    Joined:
    Nov 8, 2003
    Location:
    Chicago
    #1
    I use a Mac Pro (early 2008) at work. It has the latest Mavericks installed. Lately the USB ports seem to be failing. First the two on the front stopped working, and now two out of three on the back stopped working. Does anyone know of a way to reset the ports or test them? I've tried repairing permissions, an SMC reset and a PRAM reset but those failed to do anything.

    Is there anything else I can try?
     
  2. Weaselboy Moderator

    Weaselboy

    Staff Member

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    Jan 23, 2005
    Location:
    California
  3. crjackson2134 macrumors 68020

    crjackson2134

    Joined:
    Mar 6, 2013
    Location:
    Charlotte, NC
    #3
    I find the AHT falling short for the most part. If I need to test hardware, I usually boot to a Ubuntu USB stick and test. This takes OS X out of the loop and helps identify weather the problem is hardware or software.
     
  4. brand macrumors 601

    brand

    Joined:
    Oct 3, 2006
    Location:
    127.0.0.1
    #4
    Boot to a live Linux Distro and test the ports.
     
  5. ActionableMango macrumors 604

    ActionableMango

    Joined:
    Sep 21, 2010
    #5
    I concur with the others. Booting into any other operating system, even another OS X partition with a fresh install, will eliminate any possible software issues. If the USB ports don't work in Windows Boot Camp for example, you've got a hardware problem.

    You could try resetting your PRAM. I don't think it will actually affect USB ports, but it might be worth trying anyway. (I've never been able to find a complete list of what hardware settings OS X keeps in there.)
     
  6. thunderclap thread starter macrumors 6502a

    thunderclap

    Joined:
    Nov 8, 2003
    Location:
    Chicago
    #6
    I ran the AHT and that resulted in no problems found. I then ran the Ubuntu Live distro and I tested a flash drive, a USB drive, and a Snowball Mic none of which are seen. (The flash drive and mic don't even light up showing they're getting power). I then formatted the MP and re-installed SL and still no luck. I suspect the ports have failed and will have to take it to the Apple Store. Will they even service a 6 year old computer?
     
  7. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #7
    Sure... as long as you have the $$. :)
     
  8. ActionableMango macrumors 604

    ActionableMango

    Joined:
    Sep 21, 2010
    #8
  9. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
    #9
    ^^^^Yes, I did that with the Inatek Card. However, if you ever want to boot from a USB Drive or USB stick, you won't be able to with the card, but with the internal USB ports you will.

    Lou
     

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