Question No display NVIDIA 1070 on High Sierra

Sep 16, 2020
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Hello,
Thank you for the help. I hope to upgrade the GPU on my 2012 mac pro, switching from an ATI Radeon 5770 to NVIDIA 1070.

Mac Pro Mid 2012 - 5,1
OS: High Sierra 10.13.6
CPU: 2 x 2.4 ghz 6-core intel xenon

I get a black screen when I boot with the NVIDIA card. Been using the same PCIE slot for consistantcy (lots of plugging and unplugging).
Power is just fine, and everything is plugged in correctly and all fans are spinning.
I installed the drivers through github (https://github.com/Benjamin-Dobell/nvidia-update) and NVIDIA is installed to the most recent version. I can see NVIDIA in my prefs and toolbar, however my NVIDIA info looks differently labled than the examples I've seen View: https://imgur.com/wnweffs


Should I uninstall the ATI drivers? Anything CUDA related? I'm missing a step somewhere I'm sure.

Thank you!
Phil
 
Sep 16, 2020
2
0
10
Following up. Was using a 6 pin cable. Changed to an 8 pin, but still a black screen. Reinstalled the drivers. Will re-install a previous version of CUDA. Do you think downgrading the OS from 10.13.6 to 10.13 would do any good?
 

Joseph_138

Distinguished
Did you install the Nvidia web drivers and CUDA driver using a real Mac video card FIRST before installing the 1070? Also, you won't get a boot screen when you start up. You'll have to wait a few minutes while the Mac boots up before the desktop appears. Are you waiting long enough or are you shutting it down before it gets that far? It's also a good idea to remove the Mac video card after you install the Nvidia drivers. There is a limit as to how much power the PCIe bus is allowed to draw. It's not a lot if you're using a HD 2600 XT or a GT 120, but a HD 5770 or higher is going to draw too much alongside the 1070. You should still remove it anyway,though, and put the 1070 in slot 1, just to be safe.
 
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