GTX670 Mojave problems

[FlorisVN]

Hi All,

I have firmware flashed my 4,1 to 5,1, and put an Nvidia GTX670 got mojave also running.
But my card is still running at 2.5GT/s speed, and i got weard graphic artifacts sometimes within Mojave.

Running the latest build 10.14.2 , and running on ROM firmware version : 140.0.0.0.0

I thought the latest MacPro firmware should also enable 5GT/s speeds, maybay I'm wrong here ?
Or does it only enable it on EFI enabled cards.. ?
I think I missed this information then here..

Hope somebody can help me out ?
Thanks in advance,

 

[bsbeamer]

The GTX670 is not an officially supported card in Mojave, however it SHOULD use the same GK104 chipset as the GTX680.

What slot is the GPU in?
Do you have multiple GPUs in your machine?
What else occupies your PCIe slots?

Can you post a screenshot of your System Report > Hardware > PCI report? Select all devices in the top (highlight in blue) so they report fully in the bottom portion of the window.

 

[tsialex]

Only GTX 680 Mac edition and flashed ones show 5GT/s. All non Mac EFI Nvidia Kepler GPUs show 2,5GT/s, it’s a power saving feature, when you need 3D, the card gets out of power saving mode and runs at 5GT/s. This is the expected behavior for all Nvidia cards Kepler on wards.

Artefacts and black boxes on file lists on Finder and on the Menu bar are a old problem, happens since Sierra.

 

[bsbeamer]

Only GTX 680 Mac edition and flashed ones show 5GT/s. All non Mac EFI Nvidia GPUs show 2,5GT/s, it’s a power saving feature, when you need 3D, the card gets out of power saving mode and runs at 5GT/s. This is the expected behavior for all Nvidia cards Kepler on wards.

Is that the case for Kepler cards only, or is it a function of the driver? My GTX 1080 FE (not flashed/non-EFI) shows 5GT/s at all times in authentic 5,1 with 140.0.0.0.0 in High Sierra.

 

[tsialex]

Is that the case for Kepler cards only, or is it a function of the driver? My GTX 1080 FE (not flashed/non-EFI) shows 5GT/s at all times in authentic 5,1 with 140.0.0.0.0 in High Sierra.

I should be clearer, this happens with Kepler non flashed and Maxwell cards. Only GTX 680 Mac Edition shows 5GT/s all the time.

I don’t have any Pascal GPUs, so I don’t know how the driver behaves with them. Perhaps @h9826790 can confirm this behavior with Pascal cards.

 

[h9826790]

For macOS, that 2.5GT/s or 5GT/s doesn't really matter, especially for Nvidia card.

Simply go to Appstore, download CL!ng and run it

https://itunes.apple.com/hk/app/cl-ng/id1244392031?l=en&mt=12

Then it will show you the actual link speed. For 5GT/s, the "Host to Device" speed will be at ~5000MB/s range.

And that 2.5GT/s or 5GT/s in system info is not consistent.

AFAIK, with 138.0.0.0.0 or later.

All genuine Mac Edition card will shows 5GT/s

All AMD card should show 5GT/s

MVC flashed cards most likely will shows 2.5GT/s (but still working at 5GT/s)

Non flashed Nvidia cards should able to show 5GT/s, but no detail research in this area, not sure if different GPU family will have different behaviour.

https://forums.macrumors.com/threads/mp5-1-bootrom-thread-140-0-0-0-0.2132317/page-24#post-26383809

 

[bsbeamer]

Screenshots with GTX 1080 FE (non-flashed/non-EFI) attached. Installed in slot 1, running at 5GT/s in High Sierra 10.13.6 17G4015 with 140.0.0.0.0 in authentic 5,1 and 387.10.10.15.15.108 NVIDIA Web Driver. System drive is NVMe via PX1 in slot 2.

 

[LAHegarty]

I'm running Mojave without issue on a GTX 670 via 2x Dual Link DVI's to 30" Apple Cinema Displays.

5,1 (Single tray)
GTX 670 2GB (Gigabyte)
Mojave.

 

[Miks_]

The GTX670 is not an officially supported card in Mojave, however it SHOULD use the same GK104 chipset as the GTX680.

What slot is the GPU in?
Do you have multiple GPUs in your machine?
What else occupies your PCIe slots?

Can you post a screenshot of your System Report > Hardware > PCI report? Select all devices in the top (highlight in blue) so they report fully in the bottom portion of the window.

The GTX 670 is natively thus officially supported on Mojave.

 

[Miks_]

I'm running Mojave without issue on a GTX 670 via 2x Dual Link DVI's to 30" Apple Cinema Displays.

5,1 (Single tray)
GTX 670 2GB (Gigabyte)
Mojave.

hey, i am about to buy the msi gtx 670, are you able to get boot screens at startup ?