How to Fix [Success] MacOS Big Sur on Gigabyte GA-Z97-HD3, i7-4790, Radeon RX580, OpenCore 0.6.4

How to Fix [Success] MacOS Big Sur on Gigabyte GA-Z97-HD3, i7-4790, Radeon RX580, OpenCore 0.6.4

This mini-guide provides a structural approach to troubleshoot and fix the issue.

Prerequisites

• Confirm your hardware specifications (CPU, GPU, Motherboard).
• Ensure you have a bootable recovery USB and backup your EFI.

Fix Steps

1. Check if your GPU requires WhateverGreen or specific boot-args (e.g., agdpmod=pikera).
2. Ensure Metal acceleration is fully supported for your macOS version.
3. Update Lilu and WhateverGreen to the latest versions.

Verification

• Reboot and verify if the functionality is restored and stable under typical usage.

Original Question:

Followed the OpenCore directions exactly. (Actually one mistake because I didn't read the installation directions carefully enough. I corrected on my second try.) I am nowhere near as experienced as many who have done this. It took many hours of reading and research but was worth the effort. This is a clean install on a new SSD because the Catalina installation I had was a mess. (kexts in /library/extensions and in Clover) All kexts are now in my OpenCore efi.

SMBIOS 15,1.

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Author: simonsaba