I upgraded my Z97-A with my Thunderbolt EXII from 10.11 to Big Sur and changed the boot loader over to OpenCore 0.7.3 in the process.
However, my Thunderbolt 2 stopped working. It was working under 10.11 but on a cold boot only with no hot swapping. Now, if the device is connected at...
I agree - if you've replace the motherboard, PSU, and it happens with multiple GPUs - I have some bad news - it isn't the GPU. A new GPU will *NOT* solve your issue.
More than likely either RAM (Run Memtest for 24 hours), CPU, or your SSD going bad - it does happen, albeit rare.
FWIW, I bought another 5700XT and had the same crashing problems until I changed those BIOS settings. So, buying another one in this market may just lead to further frustration.
I never used AGPMInjector with it.
Not sure if anyone is still watching this thread, but ran into the same issues and they were as elusive as the OP's. Thought my PSU was going bad (10 yrs was a good run), then video card, but after swapping both, the issue persisted. The video card was the only thing I changed on my Z370 board...
I do believe you BOTH misunderstand.
It was stated that their entire lineup would transition within the next couple of years. Sorry, but while the pro models will more than likely be the last to move to ARM, they will move indeed.
To the sleep question - I have not hacked the 9020 for MacOS, speaking from experience turning them into little gaming machines for the family to play VR together across the country on.
To the output question - I find the card defaults to the DVI or HDMI output over the DP's.
Rebuilding my wife's machine to use an i3 8100. Made a 9.1 UniBeast stick just in case. Set the BIOS variables to what I believe to be correct (AHCI SATA mode, VT-D off, CSM attempted both on and off).
Her old install was using the bone stock config + SMBIOS + audio and ethernet kexts...