UEFI Configuration

Before installing macOS, you should properly configure your UEFI to ensure maximum compatibility. Boot into the UEFI setup wizard, and Load Optimized Defaults (under the Save & Exit tab). Then use the following settings:

Recommended UEFI Configuration

• M.I.T.
  • Advanced Frequency Settings
    • Extreme Memory Profile (X.M.P): Profile 1 (if available)
    • Advanced CPU Core Features
      • Internal CPU PLL Overvoltage: Disabled
        • Note: Enabling this will cause issues with sleep, causing the infamous "Disk Not Ejected Properly" error.
• BIOS Features
  • Fast Boot: Enabled (if supported/requires UEFI GOP VBIOS)
  • Windows 8 Features/OS Type: Windows 8
  • Secure Boot: Disabled
• Peripherals
  • SATA Mode Selection: AHCI
  • xHCI Mode: Enabled
  • Init Display First: IGPU
  • Internal Graphics: Enabled
  • Internal Graphics Memory Size: 32M
  • xHCI Hand-off: Enabled