this guy asked in the german macuser.de forum the same question and ignored effectively all information about csm mode.
Even more, he gave false information saying he was in csm mode but in reality he used UEFI mode for what he needs a uefi gop boot screen.
He was told about the chance to brick the firmware with certs filling the nvram stream also.
That's not true, I didn't ignore "all information", I just tried everything to install Windows on the MacPro. I am not a Mac user and it is a little different to install something on a Mac than on a normal PC.
I was sure to install in CSM. When I checked the installation tutorial again and found that the build stick was for UEFI. I corrected it and the installation worked. But the problem with the graphics card remains ...
[automerge]1586509431[/automerge]
Use a dedicated
SATA SSD for Windows, install Windows 10 via
CSM mode (DVD install). Use this instructions:
I don't remember uninstalling any bootcamp drivers before 6. But I had to uninstall before 6.1
forums.macrumors.com
Anything else you will lose something, GTX 680 Mac Edition firmware don't support with UEFI installs, updated firmware from eVGA don't have pre-boot configuration support.
The problem is, I don't have a free slot for another SSD on the Mac Pro and no free SSD at home. But if it is the only solution, I can't install Windows on this Mac.
Seems he wants that someone here updates the GOP driver inside Mac edition firmware. Good luck with that, no one capable of doing it will do this task for free. It's not easy, documentation lacks where the checksums and free space indicator of the Option ROM are done.
No, I'm not asking anyone to update the driver for me. I asked if there are newer ROM files than from 2014.
As it seems there are none. Apparently I'm the only one who has such problems.
I was hoping for help here. Many thanks to everyone who tried to help me.
Should anyone have any ideas, I would still be grateful.
