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macOS firmware engineering · OpenCore 1.0.8

A Mac, from a gaming laptop.

Optimized OpenCore UEFI bootloader configuration, ACPI AML bytecode power-gating, and custom kernel extension harmonization for ASUS ROG Strix gaming hardware on macOS Sonoma, Sequoia, and Tahoe.

View the repoSee the config

A GPU macOS can’t use.Switched off at the firmware.

The laptop’s discrete NVIDIA GTX 1050 Ti has no macOS driver, and left on it burns battery and heats the chassis. A custom ACPI table runs the card’s _OFF routine at boot, so only the Intel graphics stay in use.

  • Intel UHD Graphics 630Drives the displayWorking
  • NVIDIA GTX 1050 Ti MobileUnsupported on macOSPowered down
  • SSDT-Disable_GPU_PEG0.aml_OFF
  • The card is switched off electrically, so it can’t drain the battery or heat the chassis.

A laptop that wakes itself.Sleep that actually sleeps.

Sleep and wake are a classic Hackintosh weak spot. One table stops USB triggers waking the laptop instantly, a script enforces clean S3 sleep and lid-close detection, and a 15-port USB map avoids reset loops.

  • SSDT-GPRWStops USB devices waking the machine instantly
  • fix_sleep_pmset.shEnforces clean S3 sleep and lid-close detection
  • 15-port XHCI mapCompliant USB mapping, no controller reset loops

A trackpad that won’t gesture.Native multi-touch.

The I2C trackpad needs its GPIO pin interrupts routed correctly before macOS will see it. With that patched, VoodooI2C delivers Apple’s own gestures, scrolling and palm rejection.

  • 1 to 4 finger gesturesNative Apple multi-touch
  • Smooth scrollingThrough VoodooI2C and VoodooI2CHID
  • Palm rejectionEnabled by correct GPIO pin interrupts
  • The fix is one table: SSDT-GPI0.

Function keys gone quiet.Every key does its job.

A setup script restores the physical F1 to F12 legends and media hotkeys. Lighting control is left to the native companion app, which talks to the hardware directly.

F1 to F12Physical legends and media hotkeyssetup_function_keys.sh
4-zone Aura RGBHandled by the companion appROG Gaming Center

The rest of the laptop.Working too.

  • Audio

    Speakers, microphone and headphone jack, plus the native startup chime.

  • Wi-Fi and Bluetooth

    Intel radios, through OCLP-Mod patching and firmware kexts.

  • Ethernet

    Realtek gigabit, handled by RealtekRTL8111.

  • Display and HDMI

    120 Hz with native brightness and HiDPI scaling, and 4K over HDMI.

  • Webcam

    The built-in USB camera, with native macOS support.

  • Card reader

    Supported through Sinetek-rtsx. Insert the card before boot or wake.

What it can’t do. AirDrop, Handoff, Universal Clipboard and Universal Control need Apple’s AWDL wireless link, which the laptop’s Intel Wi-Fi card doesn’t have.

See what’s inside.

The config.plist in OpenCore Configurator, with twelve custom ACPI tables loaded.

OpenCore Configurator showing config.plist with twelve SSDT tables enabled in the ACPI section

Verified on this machine

Works like it was made for it.

Hardware Components Working
17
CPU, iGPU, RAM, storage, audio, ethernet, Wi-Fi, Bluetooth, trackpad, keyboard, webcam, battery, display, HDMI, and sleep/wake all confirmed functional.
macOS Versions Supported
3
Tested and working on macOS Sonoma, Sequoia, and Tahoe.
Sleep & Wake
S3
Full sleep, lid-close, and wake functionality — a common Hackintosh pain point, working reliably here.

Under the hood.

Open Source Firmware Engineering · Tested against BIOS 319 on an ASUS ROG Strix GL503GE.

Bootloader & Firmware

  • OpenCore 1.0.8
  • UEFI 2.7+
  • SMBIOS (MacBookPro16,4)
  • NVRAM (SSDT-PMC)
  • Secure Boot (Disabled)
  • BIOS Tested (v319)

ACPI Patches (SSDTs)

  • SSDT-Disable_GPU_PEG0
  • SSDT-GPRW
  • SSDT-PLUG
  • SSDT-GPI0
  • SSDT-PNLF
  • SSDT-EC
  • SSDT-USBX
  • SSDT-ALSD

Kernel Extensions (Kexts)

  • Lilu
  • VirtualSMC
  • AsusSMC
  • WhateverGreen (-igfxblt)
  • AppleALC (layout-id: 14)
  • VoodooI2C / VoodooI2CHID
  • AirportItlwm
  • RealtekRTL8111
  • NVMeFix
  • Sinetek-rtsx (Testing)

Target Hardware & Status

  • ASUS ROG Strix GL503GE
  • Intel Core i7-8750H (6C/12T)
  • Intel UHD Graphics 630 (Working)
  • GTX 1050 Ti Mobile (Disabled)
  • Realtek ALC295 (Working)
  • Realtek RTS5229 (Testing)
  • 16GB DDR4 2666MHz

Keep exploring.

Tech Specs

Want the details?

Every setting, limit and component, grouped and searchable by section.

Learn more

All projects

See more of the work.

Every case study, from firmware and hardware to internal tools.

Learn more

The companion app

ROG Gaming Center macOS App

Native macOS App · Swift & SwiftUI

Learn more