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aerz / ga-z270-gaming-k3-efi

GA-Z270-Gaming K3 - OpenCore EFI

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hackintoshopencore-efi

GA-Z270-Gaming K3 - OpenCore

This repository contains my personal EFI folder that I've used for my Hackintosh build. The purpose is to share how I accomplished the installation, tools, resources and so on.

Build

Hardware Model
Motherboard Gigabyte Z270 Gaming K3
CPU Intel i7-7700
GPU AMD Sapphire Radeon HD 7870 GHz Edition 2 GB (Dual-X)
Hard disk Samsung SSD 970 EVO NVMe M.2 500 GB
RAM Corsair VENGEANCE LPX 3000Mhz (8GB x 2)
Wireless + Bluetooth BCM94360 + WTXUP PCI-E X1 X4 X8 X16
Alternative Wireless Dongle TP-Link TL-WN725N
Power Supply Corsair TXM Series TX550M

What's working?

  • ✅ macOS BigSur 11.0
  • ✅ Audio
  • ✅ Hardware acceleration (dGPU + iGPU)
  • ✅ Sleep and Wake
  • ✅ USB-C + USB 3.0
  • ❓ Firevault. Not tested

How to use?

BIOS

I use the following settings, check all of them before use the EFI folder:

- MIT
    - Advanced Frecuency Settings -> Extreme Memory Profile (XMP): Profile1
    - Advanced Memory Seetings ->
        - Extreme Memory Profile (XMP): Profile1
        - Memory Frecuency (MHz): 3000Mhz
    - Miscellaneous Settings -> 3DMark01 Enhancement: Disabled

- 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

Troubleshooting

Sleep/Wake

To avoid random wake-up calls you have to disable:

  1. Settings > Energy Saver > Enable Power Nap

Power Nap

  1. Settings > Bluetooth > Advanced > Allow Bluetooth devices to wake this computer

Bluetooth wake

Also, if sleep/wake doesn't work properly, you can debug the "wake reason" from the terminal:

sudo pmset -g
pmset -g assertions
log show --style syslog | fgrep "Wake reason"

HiDPI

This tools helped me to configure easily HiDPI displays:

  • one-key-hidpi - Allows to enable macOS HiDPI resolutions on any 2K-4K display
  • RDM - Allows to set the right retina resolution

USB Patch

In this build, I don't use any USB patch (which changes in every new macOS update/release) instead, I did a custom kext that contains all the USB ports fixed. I followed this steps:

  • Remove USBPorts.kext and remove its load on config.plist
  • Apply the USB Patch Limit that match with your macOS installation
  • Download and use Hackintool, go to USB tab and click on the help incon (?)
  • Follow the instructions and generate a new USBPorts.kext
  • Remove the USB Patch Limit, paste the new kext on the Kexts folder and load it in config.plist array.

More guides about USB Patch:

When dual-boot can not set the proper time on Windows 10

This is a common problem, so to fix it you should run scripts/timefix/Windows Universal Time - On.reg. Just double click on it from Windows and the system date will be persistent.

To disable, use the scripts/timefix/Windows Universal Time - Off.reg file.

Resources

Credits

  • mald0n: Thanks for DSDT Patch

About

GA-Z270-Gaming K3 - OpenCore EFI

hackintoshopencore-efi