What are my options Nvidia GPU/OSX?

Discussion in 'Mac Pro' started by cortexdnb, Aug 17, 2016.

  1. cortexdnb macrumors newbie

    Joined:
    Aug 17, 2016
    #1
    just brought a 2008 mac 3.1 32gb El capitan with a NVIDIA GTX 970 (Un-flashed).

    I want to run a game that apparently has issues with the 10.11 OSX, is there away of downgrading to Yosemite/Mavericks without losing the Nvidia drivers. My concern is that once i downgrade i wont get any output from the GPU, correct me if I'm wrong.

    Hope someone can help.
     
  2. ActionableMango macrumors G3

    ActionableMango

    Joined:
    Sep 21, 2010
    #2
    Won't work with Mavericks, no drivers.

    You can install Yosemite and install Nvidia's web drivers for Yosemite which will work with your 970. However, since you don't have a flashed card, you won't be able to see in order to do this. So you have to plop in your old Apple card, do the Yosemite and then driver installation, then plop in the 970.
     
  3. cortexdnb thread starter macrumors newbie

    Joined:
    Aug 17, 2016
    #3
    unfortunately the computer came with that card, s there anyway of doing it without changing the card?
     
  4. xactoman macrumors member

    Joined:
    Jul 9, 2015
    #4

    if you have another mac you can login via screenshare and set the driver to nividia and restart.
     
  5. ActionableMango, Aug 18, 2016
    Last edited: Aug 18, 2016

    ActionableMango macrumors G3

    ActionableMango

    Joined:
    Sep 21, 2010
    #5
    If you have another Mac, connect the Mac Pro's hard drive to it. Install Yosemite, then the Nvidia web drivers, then enable screen sharing. Move the hard drive back to the Mac Pro.

    If you don't have another Mac, I can't think of anything. You are in a really precarious position with an unflashed Maxwell card if you don't have either another Mac or another card with Mac EFI.
     
  6. cortexdnb thread starter macrumors newbie

    Joined:
    Aug 17, 2016
    #6
    Luckily it came with a native card as well. i have installed yosemite and the latest nvidia drivers. Now for some reason its not seeing the the card.

    any ideas? its an evga gtx 970.

    I'm going to upgrade to 10.10.5 and see if that brings me any luck
     
  7. ActionableMango macrumors G3

    ActionableMango

    Joined:
    Sep 21, 2010
    #7
    That's what I meant when I said install the old Apple card.

    Upgrade to 10.10.5. Install 346.02.03f08 drivers. Make sure they are enabled in the Nvidia Preference Pane. Reboot.

    After reboot, check to ensure Nvidia drivers are still enabled in the preference pane. At this point you can turn off the computer and switch cards back to the 970.
     
  8. cortexdnb thread starter macrumors newbie

    Joined:
    Aug 17, 2016
    #8
    now I'm facing a different problem, i can't seam to display the same image over two monitors, it just cuts off.
    i can get extended desktop and an image on second monitor, but it won't share the same image,
     
  9. ActionableMango macrumors G3

    ActionableMango

    Joined:
    Sep 21, 2010
    #9
    Make sure your monitor arrangement set up in OS X is identical to the monitor arrangement in real life.

    [​IMG]
     
  10. cortexdnb thread starter macrumors newbie

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    Aug 17, 2016
    #10
     

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