What are my options Nvidia GPU/OSX?

[cortexdnb]

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.

 

[ActionableMango]

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.

 

[cortexdnb]

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.

unfortunately the computer came with that card, s there anyway of doing it without changing the card?

 

[xactoman]

unfortunately the computer came with that card, s there anyway of doing it without changing the card?

if you have another mac you can login via screenshare and set the driver to nividia and restart.

 

[ActionableMango]

unfortunately the computer came with that card, s there anyway of doing it without changing the card?

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.

 

[cortexdnb]

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.

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

 

[ActionableMango]

Luckily it came with a native card as well.

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.

 

[cortexdnb]

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,

 

[ActionableMango]

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,

Make sure your monitor arrangement set up in OS X is identical to the monitor arrangement in real life.

 

[cortexdnb]

Make sure your monitor arrangement set up in OS X is identical to the monitor arrangement in real life.


The displays were correct as in your diagram, the solution however was in mission control. when you update from snow leopard to yosemite it doesn't let you share and image over two monitors. There is a check bock in mission control called "displays have separate spaces" this needs to be unchecked.