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The time for hackintoshing today is limited but two new things: First, the working Catalina version from my old build is 10.15.1. Maybe interesting... And the second thing is, I swapped my mainboard with an equivalent GA Z390 ITX Board, because at the first one, the I/O Shield was missing and...

I was already in bed and actually wanted to sleep. But I had an Idea: I had an complete system(Catalina) on another SSD from my old build (that I dissembled two days ago) lain around, that I tried a few times, but don't want to boot. But your EFI into it and boom! Boots straight up :lol:. Even...

Mh crazy idea, but if everything else fails :p I tried for fun to boot the corrupted half install from the "2 minutes left freeze try" and it comes much further. It makes it through the verbose part, than Apple Logo, than grey screen with curser and than immediately its shuts down in verbose and...

This time I used UniBeast to create an USB Stick. Deleted the EFI Folder in the EFI Partition and put your into it(with "agdpmod=pikera" added). I used a different USB Stick and tried it on different USB ports. Sadly nothing new here...

Added SSDT-EC.aml to Clover/ACPI/Patched and disabled iGPU. Same result. Removed it and set the iGPU back to AUTO. Added "agdpmod=pikera" now, but same result, too

Yes, that's all. It stops after 7 seconds

I thought using the 4th post it should be no problem to use the iGPU only. But now I inserted the RX 5700. And I'm getting further than before. I tried with and with iGPU enabled and disabled. For both I get this result: First it stops here and after 10 seconds or so the prohibitory screen comes

Okay done. Right after choosing my USB Stick in Clover I get this displayed: I tried it with the iGPU

Okay, nice! So, now that I now that, I try your guide again. Maybe I missed something along the way. Thank you for your work here in the community :clap:!

Thanks for the quick answer! I downloaded the installed BIOS version from the manufacturer's website and looked for the MSR address (as described by you) and found out that it is the same address as your mainboard. After entering the EFI Shell I got the following output. Was it successful? I...

Have the same problem here. Tried tonymacx's guide to install Catalina but at the 2 minutes left mark my pc stutters and restarts automatically. I also tried the one from pastrychef but until now I can't get the boot process started.

Hey Xsera, Nvidia does not produce drivers for macOS since High Sierra. So you could install macOS High Sierra on your System or swap your GPU to an AMD one. Cheap options are the RX 580. If you want something faster you could buy an RX 5700 (or XT).

Works also for me. Changing Bios settings to "Windows 8 WHQL" an disable CSM Support!!! Nice side effect: From the beginning at the boot screen the correct display resolution is shown. AND in the past one out of three system starts has been fail starts (on HDMI) (boot screen -> clover -> Apple...

Changing the System Definition to iMac 13.1 solves the problem :)