DavidKoller 0 Posted November 12, 2020 Posted November 12, 2020 Install macOS Big Sur on H310sd3 Board My PC spec motherboard :ONDA h310sd3 CPU : intel i3 9100f DGPU: AMD :RX580 4G SMBIOS:iMac 19,1 https://github.com/linlinger/ONDA-H310SD3-OC-hackintosh This is my EFI files. It's not a perfect one. You can have a look there. This is the end of sharing part. Tips for installing Big Sur . First of all,you need to have a working nvram A working nvram is required to install macOS Big Sur. The installer will write nvram variables during installation process, maybe macOS Catalina isn't required. So when you have a broken nvram it will keep restarting in second stage installation.Fix up nvram or use a emulated nvram. On some Boards nvram isn't enabled by default.You need to go to advanced ---> RAM disk configuration add a raw ramdisk file(AMI bios). So don't forget to check it out . Quote Share this post Link to post Share on other sites