EFI folder made with Opencore release 0.7.1 and used to boot on an Aorus z490 Ultra motherboard with an i7-10700K CPU. Do not use this EFI folder if you don't have exactly the same setup.
Installation
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Mount USB drive EFI system partition. This is automatically made when you format with GUID but is unmounted by default, use CorpNewt's MountEFI.
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If you need to modify config.plist, use CorpNewt's Propertree.
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You have to change the SMBIOS info inside Root/PlatformInfo, use CorpNewt's GenSMBIOS. Run GenSMBIOS, pick option 2 and drag your config.plist file then pick option 1 for downloading MacSerial and Option 3 for selecting out SMBIOS. It should be iMac20,1 for i7-10700K (and lower; for i9-10850K and higher use iMac20,2).
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Follow the Opencore instruction for the UEFI BIOS settings (Tutorial).
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Enjoy!