Open Applications → Utilities → Terminal and enter the following command to allow apps downloaded from unidentified developers: When Macintosh HD (or Preboot) appears on the bootloader menu, select this entry and complete the guided macOS setupĬopy the Utility and Kext Pack to your Desktop and eject the USB installer When the computer restarts again, press F12 to ensure that it boots from the USB. The installation process will then continue very slowly and it may appear to hang at times - just wait and it will eventually continue. At the bootloader menu, select the option labeled macOS Installer and press Enter to continue. When it does, press F12 to ensure that it boots from the USB (OpenCore). The computer will restart at least once during the next stage. The first stage of the install process should take about 5 to 10 minutes (if the screen dims you can press a key to wake it) Name the target disk Macintosh HD, select APFS format and GUID Partition Map scheme, then click EraseĪfter the erase process finishes, quit Disk Utility, select Install macOS and follow the prompts to do a standard macOS installation on Macintosh HD Select your target disk (select the physical disk, not a volume on the disk) and click Erase In Disk Utility, click the View menu and select Show All Devices Use the arrow keys to select Install macOS Monterey at the bootloader menu and press Enterįrom the macOS Recovery screen, launch Disk Utility Insert the USB installer and press F12 at startup to select the USB as your boot disk All graphics ports should be fully functional once the installation is complete, however DisplayPort should be used if possible.ĭisconnect all drives from your computer except the drive you will be installing macOS on Note that if you have an AMD graphics card it may be necessary to connect the monitor to a DisplayPort output during the installation process. It should look like the image here (click to enlarge) → The EFI partition on your USB should now contain a single folder named EFI that contains two folders: BOOT and OC. Quit OpenCore Configurator and copy the entire EFI folder from the Utility and Kext Pack to the EFI partition of your USB, replacing the existing folder if present.
It will appear as EFI on Install macOS Monterey Launch OpenCore Configurator from the Utility and Kext Pack and select Mount EFI from the Tools menuĬlick the Mount Partition button to the right of the EFI partition of your USB. Sudo /Applications/Install\ macOS\ Monterey.app/Contents/Resources/createinstallmedia -volume /Volumes/USB -nointeractionĪfter approximately 25-35 minutes the process will finish and the USB will be renamed Install macOS Monterey (wait for the “Install media now available” message in the Terminal before continuing)ĭownload the GA-Z68X-UDH3-B3 macOS 12 Utility and Kext Pack and place a copy on your installation USB Open Applications → Utilities → Terminal and enter the following command: Under Scheme select GUID Partition Map (If the Scheme option is not visible, go to the View menu and select Show All Devices) Under Format: select Mac OS Extended (Journaled) Select the USB disk in the left pane (select the physical disk, not a volume on the disk)
Open Applications → Utilities → Disk Utility Peripherals → SATA Mode Selection = AHCIĭownload the Install macOS Monterey app from the App Store.BIOS Features → Boot Mode Selection = UEFI Only.BIOS Features → Intel Virtualization Technology = Enabled.→ Advanced Memory Settings → Extreme Memory Profile (X.M.P.) = Profile1 (or set to Disabled if your RAM modules do not support Intel XMP) → Advanced Frequency Settings → Advanced CPU Core Features → CPU EIST Function = Disabled
Press F12 at startup to enter BIOS setup and select the following: See the modified BIOS here if you want to use an NVMe SSD See the guide here if you are updating from a legacy version of the BIOS (version F12 or earlier) 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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