No boot screen using GTX 1070Ti on 5,1

April 15, 2021 at 06:33

Hi everyone, I'm fairly new to Mac Pros and having a heck of a time upgrading from 10.13.6 to 10.14 Mojave. I've spent hours reading and trying things but here are my current issues.Are you can see I've upgraded the BootRom already and have new PGU installed using webdrivers.Problems:1) HDMI -> DVI works but not Apple Cinema display using mini DP -> DP doesn't work2) I cannot upgrade to Mojave because I don't have boot screen to allow me to select the driveI did do youtube video EFI with Opencore and the following downloaded files.Any help would be greatly appreciated to get me back working.