MSI B250M-PRO-VH/Gigabyte GA-Z270-Gaming-K3 macOS OpenCore EFI

macOS & OpenCore Versions

• macOS Big Sur 11.7/Monterey 12.6/Ventura 13.5.
• OpenCore r0.8.4

Catalina is not supported!

Ethernet connection is required.

Usage guide:

• Make macOS Installer by following this link: https://dortania.github.io/OpenCore-Install-Guide/installer-guide/

• After making it, simply download latest version of EFI and unpack EFI folder, use https://github.com/corpnewt/GenSMBIOS to generate your SMBIOS configs for iMac18,1 model,

• After that, simply drag your EFI folder to root of your macOS Installer USB drive.

• Reboot to UEFI and set recommended settings that are under this,

• Save and reboot to Boot Menu, pick your USB drive, and select macOS Installer (external),

• Go to Disk Utility and format your disk as APFS (sometimes it needs to be formatted as macOS Journaled due to strange issue with APFS when it doesn't create EFI partition,)

• After that go to Big Sur/Monterey/Ventura installation, and pick your newly formatted drive, it will reboot a couple of times, then simply go to Boot Menu and select your USB drive, after that simply select "macOS Installer" and lately select the name of your macOS drive,

• After configuring macOS download and open MountEFI script: https://github.com/corpnewt/MountEFI

• Mount your USB drive and macOS drive EFI partitions,

• Copy EFI folder from USB to EFI Partition on your macOS drive,

• Unmount all EFI partitions after so.

• SSD/NVMe drives recommended.

• For Ventura installation you need to use this variable for macrecovery to download Internet Recovery Image: Mac-4B682C642B45593E

UEFI Recommended Settings for MSI Board:

- Hyper-Threading Technology: Enabled
- Intel Speed Boost: Enabled
- Fast Boot: Disabled
- MSI Fast Boot: Disabled
- OS Type: Windows 8 / 10
- Secure Boot: Disabled
- Serial(COM) Port: Disabled
- Parallel Port: Disabled
- XHCI Hand-Off: Enabled
- SATA Mode: AHCI
- VT-d: Disabled
- DVMT Pre-Allocated Memory: 64~128 MB
- PTT can be enabled if you have installed Windows 11 on separate drive.

UEFI Recommended Settings for Gigabyte Board:

- BIOS
    - Fast boot: Disabled
    - Windows 8/10 Features: OtherOS
    - LAN PXE Boot Option ROM: Disabled
    - Storage Boot Option Control: UEFI
    - Other PCI devices: UEFI

- Peripherals
    - Initial Display Output: PCIe 1 Slot
    - USB 3.0 DAC-UP 2: Normal
    - USB Configuration -> XHCI Hand-Off: Enabled
    - SATA and RST Configuration -> Agressive LPM Support: Disabled (Enable can cause graphical freezes)

- Chipset
    - VT-d: Disabled
    - Internal graphics: Enabled
    - DVMT Pre-Allocated: 64MB
    - DVMT Total Gfx-Mem: 128MB

That EFI doesn't have verbose mode turned on by default, but you can simply set it by adding: -v parameter to config.plist at NVRAM section in boot-args string.

Specs that are used by this EFI:

• Motherboard: MSI B250M-PRO-VH/Gigabyte GA-Z270-Gaming-K3,
• CPU: Intel Core i7 7700 (4x3.6GHz+ Turbo Boost to 4.20GHz),
• GPU Intel HD Graphics 630/AMD Radeon RX 570 4GB,
• Memory: 32GB DDR4,
• Disk on which macOS is installed: GOODRAM IRDM 128GB (SSD, SATA)

What's working:

• Intel HD Graphics 630 VGA and HDMI outputs (full graphics acceleration and software DRM),
• Dedicated GPU Acceleration
• Realtek ALC 887, with layout-id 52/ALC 1220 with layout-id 1,
• Network,
• Night Shift,
• Bluetooth with a Realtek Dongle (also works on Monterey!),
• iMessage and FaceTime after running iMessageFix (https://t.me/arixnara/29) For Ventura this fix is not required.,
• System updates.

What's not working:

• Sleep & Wake (can't be fixable on MSI)

README is heavily inspired by: https://github.com/lshbluesky/OC-GA-B250M-DS3H-Hackintosh