GTX 590 Working, But OpenGL

[Maximilian75]

It is a Gigabyte GTX 590 3GB, 1.5GB Per GPU. OS X is showing it as a 1.5GB Card. I cannot find the GByte model on the NewEgg site but identical to this one.
http://www.newegg.com/Product/Product.a ... 6814121436

You activate 2 Gpu's or only one???
Do you have 4 display at same time working on LION????

 

[cuppatea]

I am using just a single display and correct only 1 GPU is being used as far as I am aware. Need to enable SLi like they did with the GTX295

 

[Maximilian75]

I am using just a single display and correct only 1 GPU is being used as far as I am aware. Need to enable SLi like they did with the GTX295

SLI Function it's not allowed in OSX
I think you must to activate the second GPU with gfx string or dsdt like you activate 2 cards, i don't know if work, just give it a try

 

[cuppatea]

Kext can be found here to save editing manually.

http://www.osx86.net/view/2074-gtx_5xx_enabler.html