Update the BIOS to the latest UEFI version On Sandy Bridge systems it may also be necessary to replace HfsPlus.efi in /EFI/OC/Drivers with HfsPlusLegacy.efi available here. Those adjustments are detailed in the Sandy Bridge section of the OpenCore guide here. If you have a Sandy Bridge CPU it will be necessary to make adjustments to the ist included in this guide. Some graphics cards, including the RX 580, will perform better if the system definition is changed with OpenCore Configurator to iMac18,3. The included ist uses the iMacPro1,1 system definition for the widest compatibility. MacOS MONTEREY INSTALLATION on the GA-Z68X-UD3H-B3įollow these steps to perform a clean installation of macOS Monterey on your Ivy Bridge GA-Z68X-UD3H-B3 system.Ī Time Machine backup of your current installation will allow you to easily restore files with Migration Assistant after a clean installation.Ī discrete graphics card compatible with Metal will be necessary to install macOS Monterey using this guide.
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