I'm running a non-flashed 4gb GTX 960 in 2010 5,1 cMP and the machine refuses to wake-up / display anything after sleeping. Completely after a restart though (having reset the PRAM). Is this likely related?

This site has got a lot of really useful stuff on it. Thanks for informing me.

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I tried many times but the web driver still won't load, I'm El Capitan - OS X 10.11.6 (15G31)- WebDriver-346.03.15f01
I bought a flashed Titan X from you
I don't know how ti fick it, still have reboot in loop, display laggy etc etc.
thanks!

This does not work for me on High Sierra – have yet to make my GTX 1080 8GB I just bought from you guys work. Computer always reverts back to the Default MacOS graphics driver, instead of the Nvidia WEB driver. Disheartening – any suggestions?

The most recent NVIDIA driver seems to be working with 10.11.6 -(15G31) 346.03.15f02

I have a GTX-680 (Mac Edition) on a 5,1 8 Core Mac Pro and experienced crashes on launch of Premiere, AFX and AME 2015.3 when I upgraded from 10.11.5 to 10.11.6. I ended up rolling back to 10.11.5.
So I'd really like some insight into this one:
AL MOONEY, Senior Product Manager, Professional Video Editing
Adobe Systems, told me to do the following:
'The way to fix this is to uninstall the NVIDIA web driver and install the NVIDIA CUDA driver.'
He also said:
'Metal will give you no performance improvements over CUDA on NVIDIA hardware, which is fully supported. In fact CUDA is better and faster. So I’m not sure why you’re keen to use Metal considering it’s just another alternative GPU language?' (this was in response to when I thought CUDA and METAL some 'worked together'.)
I did what he said, I uninstalled the Nvidia Web Driver, leaving the latest install of CUDA alone. -- Things seem to work now.
My question, What the hell does the Nvidia Web Driver Do if I don't need it to run CUDA on my card? -- Since I bought the card I've always thought I needed to keep current on bothe the Nvidia Web Driver AND CUDA. Adobe's senior product manager of Professsional of Professional Video Editing tells me to UNINSTALL the Driver.
-- I'm very confused. I would very much like to upgrade to a beefier, 'FLASHED' card from you guys. Someone PLEASE ENLIGHTEN ME.

Our newer cards require the Nvidia web driver since there is no driver support built into OS X (everything from the GTX 780 6 GB and up). For the GTX 780 3 GB and below (including your 680 even though it didn't come from us) there is driver support built into OS X. While the CUDA driver is still necessary to unlock CUDA support the OS X driver is all you need for base function. For the 680 the web driver offers at best some performance tweaks and bug fixes, though as you found recently it can also cause unexpected problems in other areas.

So, you're basically telling me that due to the age of my card, the GTX-680 Mac Edition, it works because there are built in drivers in 10.11.6. But if I wanted to say, upgrade to a 980ti or say a 1080 or a Titan, I WOULD ABSOLUTELY NEED the latest driver in combination to a CUDA install? -- I still can't get past the 'uninstall' the driver part. Should I install the latest Nvidia Web Driver (against Al's advice, which by the way had nothing to do with trashing or disabling Metal Folders) and expect better performance?

Yes, that's what I'm saying.
I mean, you can install the driver if you want. I expect any performance gains to be very minor, it's likely you wouldn't even notice them. If everything is working smoothly off the OS X driver there's little reason to fiddle with it.

BTW: Updates to the Adobe CC apps were just released. Not really sure what they address.

They have just blocked nvidia cards not to use Metal but only OpenCL.

I work in adobe premiere CC nearly everyday and I could not figure out how to get rid of those insidious kernel panics. I had to remove my GTX 980 because of this. I did a clean install, removed all insignificant software, updated all drivers, replaced my ram, you name it, I have done it. I am not very happy about this and plan to use the GTX 980 in my new PC because not having adequate support for these issues is taxing in a professional environment. Ever since I put the stock GPU back into my Mac Pro 5,1, no kernel panics.

I've been having the same issues. NVIDIA 980ti running on Mac Pro 4,1 with 10.10.5. I've read some people totally removing CUDA drivers and running OpenGL exclusively to solve this issue. Has anyone else had luck with that?