Bought Mac Pro, problem with USB

Discussion in 'Mac Pro' started by phoenix-mac-user, Sep 21, 2016.

  1. phoenix-mac-user macrumors newbie

    Joined:
    Sep 21, 2016
    #1
    Hi everyone. I just scored a new (old) 2009 mac pro 8 core off craigslist and bought the following 2 items to get the Wifi/Bluetooth up to date for Continuity featured.

    http://www.ebay.com/itm/271921196824?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT
    http://www.ebay.com/itm/371440894665?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT

    I put everything together and installed the card into my 3rd PCI slot...AND it doesn't work. But I think that is because I didn't do anything with the USB cable. Does anyone know what I am supposed to connect that to?

    I am banging my head against the wall. Any help would be greatly appreciated.
     
  2. Nunyabinez macrumors 68000

    Nunyabinez

    Joined:
    Apr 27, 2010
    Location:
    Provo, UT
    #2
    It's not a USB cable it is a power cable. What you bought was intended to allow someone who has a PC Hackintosh to use actual Apple parts. It will work in your machine if you can get power to it. Unfortunately, Mac power supplies don't have loose cables to hook things up to like PCs do.

    So, it's technically possible, but you are going to have to open up the power supply and splice into cables, which is a serious mod. Sorry to be the bearer of bad news.
     
  3. thornslack macrumors regular

    Joined:
    Nov 16, 2013
    #3
    Or you could get a sata to usb converter and run power from an unused hard drive connector along the backplane or from your second optical drive connector. Some pcie cards also have internal usb connections for power which would work. For example my usb 3 card has a molex connector on the inside which could also provide power through the pcie bus to something small internally, though I have no use for it atm.
     
  4. phoenix-mac-user thread starter macrumors newbie

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    Sep 21, 2016
    #4
  5. h9826790 macrumors 604

    h9826790

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    Apr 3, 2014
    Location:
    Hong Kong
    #5
  6. phoenix-mac-user thread starter macrumors newbie

    Joined:
    Sep 21, 2016
    #6
    Thanks for your help! I just ordered it. One final question - I have the original Wifi/BT card that came with the computer installed. Should I remove that? Will their be conflicts between the 2 cards?
     
  7. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #7
    AFAIK, it's optional, since no driver loaded, they just sit there and do nothing, should be no harm to the system.
     
  8. pastrychef macrumors 601

    pastrychef

    Joined:
    Sep 15, 2006
    Location:
    New York City, NY
    #8
    Power comes from the PCIe slot. That cable carries bluetooth signals. If you don't plug in the USB cable, wifi should still work.
     
  9. flyinmac macrumors 68030

    flyinmac

    Joined:
    Sep 2, 2006
    Location:
    United States
    #9
    Absolutely incorrect.

    That is USB data send and receive. There is absolutely no power going over that cable. Just data.

    Absolutely do not connect that cable directly to power.

    I have a similar card in my Mac Pro. Personally I fabricated my own adaption for that cable.

    The wifi will work without connecting that cable. The Bluetooth requires the USB data connection to work.

    As another poster pointed out, power is provided by the PCI-e slot.
    --- Post Merged, Sep 25, 2016 ---
    It will not conflict. If your card is properly working, the original wifi and Bluetooth on the main board will be disabled automatically.

    I have a similar setup in my machine.

    You can remove the factory wifi and Bluetooth from your computer if you like. But it's unnecessary.
     
  10. Nunyabinez macrumors 68000

    Nunyabinez

    Joined:
    Apr 27, 2010
    Location:
    Provo, UT
    #10
    Thanks for catching that. I didn't look closely at the printing on the PCB. It is indeed the data. I am surprised that they didn't use the correct wire coloring. I saw the red and black wires which are for VCC and ground according to the USB standard and assumed that it was power. I expected to see green and white for the data + and -.
     
  11. flyinmac macrumors 68030

    flyinmac

    Joined:
    Sep 2, 2006
    Location:
    United States
    #11
    Yep, gotta watch those card makers. Red and black wires were probably 1 cent cheaper.
     

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