Mac Pro 5.1 with OS 10.8.5 and 3 GTX Titans

Discussion in 'Mac Pro' started by didgi, Oct 16, 2014.

  1. didgi macrumors newbie

    Joined:
    Jan 21, 2014
    #1
    Hello,

    I'm using a Mac Pro 5.1 with ML 10.8.5.I'm looking for a solution to run 3-4
    Gtx titans externally.I lean towards a Cubix Xpander with MacVidCards.
    My main concern is,does it work at all.
    i would use it mainly for Octane Renderer with C4D.
    it would be nice if any pros could give me some information about this.

    i have read a couple of threads here where Mavericks has some issues with
    Cubix-titans combination.

    I don't really have to switch to a PC,do i?
     
  2. CASLondon macrumors 6502a

    Joined:
    Apr 18, 2011
    #2
    You might want to chip in over on the LiftGammaGain forums (for video colour graders), lots more expansion chassis users over there

    http://liftgammagain.com/forum/index.php

    Good luck. And no, you never need to go to windows again
     
  3. didgi thread starter macrumors newbie

    Joined:
    Jan 21, 2014
    #3
    hi there,

    thank you for your reply.I'll get back to your link if nobody can help here.
     
  4. didgi thread starter macrumors newbie

    Joined:
    Jan 21, 2014
    #4
    Hi,

    is there any limitation of how many GPUs you can use externally with OSX?
    Thank you
     
  5. benjobe2513 macrumors member

    benjobe2513

    Joined:
    Sep 10, 2008
    Location:
    Humboldt County, California
    #5
    If you're running 10.8.5 then I think there's no GPU limit, which is why a lot of the colorists over in the Lift Gamma Gain Forum are stuck in that OSX. But if you are in 10.9 or 10.10 there's a 1 GUI + 2 GPU limit, ie. you can have only three cards recognized by OSX. And apparently a Red Rocket card counts at a graphics card in this respect.

    I'm basically quoting information that I found at the LGG Forum under the Hardware subforum CPU & GPU. I'd recommend poking around there for more info.
     
  6. didgi thread starter macrumors newbie

    Joined:
    Jan 21, 2014
    #6
    Hi,
    i have contacted cubix and they confirmed it.
    cheers
     
  7. didgi thread starter macrumors newbie

    Joined:
    Jan 21, 2014
    #7
    Hello,

    i'm running now a GTX Titan installed inside of the Mac Pro.The card is powered internally with a special cable.This card doesn't need any external PSU.
    Oh,and i'm running 3 others with an external GPU enclosure.:)
    cheers
     

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