hackintosh-sequoia-12400

Hackintosh Sequoia (OpenCore EFI)

This repository contains an OpenCore EFI for a custom Hackintosh build named "Sequoia". The EFI is configured to run macOS on a Gigabyte B760M DS3H AX DDR5 system with an AMD GPU. The goal is a smooth dual-boot setup with Windows 11 (on NVMe1) and macOS (on NVMe2).

System / Hardware

Component	Model
Motherboard	Gigabyte B760M DS3H AX DDR5
CPU	Intel i5 12400 (Non F)
GPU	Sapphire Nitro+ RX 6800 XT 16GB
RAM	ADATA 2 × 16 GB 6000 MHz
NVMe 1 (Windows)	Team Group MP44L 1 TB (Gen4)
NVMe 2 (macOS)	ADATA 850 Lite 512 GB (macOS install)
SATA SSD	Team Group Vulcan 512 GB
HDD 2.5"	Seagate 1 TB
HDD 3.5"	WD Purple 4 TB
Wireless Card	Intel® Wi-Fi 6E AX210 + BT5.2
Keyboard	Langtu GK64
Mouse	Logitech M330
Monitor 1	Xiaomi A27Qi 27" (2560×1440)
Monitor 2	BenQ G615HDPL 15.5" (1366×768)
Webcam + Mic	Generic China-made (unknown brand)
Case	Gamemax Spark

Repository layout (important paths)

• EFI/OC/config.plist — your OpenCore configuration.
• EFI/OC/ACPI/ — SSDTs used for various fixes (EC, USB, USBX, etc.).
• EFI/OC/Kexts/ — kernel extensions used (VirtualSMC, Lilu, Whatever is present in this repo).
• EFI/OC/Drivers/ — OpenCore drivers required at boot.

Check EFI/OC/ first when troubleshooting boot or hardware issues.

What works (tested)

These items are working reliably in this configuration:

• Wi‑Fi 2.4 GHz (HeliPort + itlwm family support)
• Wi‑Fi 5 GHz (where supported by the card/driver)
• Bluetooth (basic devices pairing and audio)
• Dual-boot: Windows 11 on NVMe1 and macOS on NVMe2 via OpenCore menu
• Dual-monitor setup (external monitors recognized, extended/duplicate displays)
• GPU acceleration for RX 6800 XT (no kext changes required after upgrading from RX 6700 XT)
• Audio (AppleALC or alternative pin config in-place)
• All audio ports are working, bluetooth and usb audio as well
• USB ports (including XHCI fixes and USB mapping via SSDTs / USBPorts.kext)
• All USB ports are working
• Sleep / Wake (basic sleep, wake tested)
• Screensaver animations and UI graphics
• Keyboard and mouse (Langtu GK64 and Logitech M330)
• NVMe and SATA storage detection

Notes: Wi‑Fi uses HeliPort for GUI control. RGB control for system lighting uses OpenRGB.

What doesn't work / known limitations

• AirDrop — not functional on this hardware/configuration.
• RAM per‑LED RGB control — modules show colors but per-effect/brightness/speed control for the RAM is not available (we can read RGB as 'on' but not programmatically change types/animations reliably).

These are hardware/protocol limitations or require vendor-specific firmware/APIs that are not available in macOS on this platform.

Important notes & tips

• GPU upgrade note: This setup previously used a Red Devil RX 6700 XT. Upgrading to a Sapphire Nitro+ RX 6800 XT worked without changing kexts or major config. If you change GPUs again, check config.plist device properties and framebuffer patches.
• Wi‑Fi: HeliPort is used as the user-facing app for network selection when using Intel-based Wi‑Fi patched drivers (itlwm). Keep HeliPort.app updated. If networks disappear after sleep, toggle the interface or re-run HeliPort.
• RGB: OpenRGB provides system-wide RGB control. Some devices (especially RAM) rely on vendor-specific controllers that OpenRGB cannot fully manage.
• Dual boot: When installing or updating Windows, be careful not to overwrite your OpenCore EFI on the system disk. Prefer installing Windows to NVMe1 and macOS to NVMe2 as currently set up.
• Backups: Keep a copy of EFI/OC/ (and especially config.plist) off the EFI partition. Before any macOS update, snapshot the EFI folder in case you need to roll back.

Troubleshooting quick checklist

1. Boot fails / black screen:

   • Reboot into OpenCore's picker and try Safe Mode or Verbose mode.
   • Check Drivers and make sure OpenRuntime/OpenCanopy are present.
   • Verify config.plist Serial/SMBIOS are correct.

2. USB devices not recognized:

   • Ensure correct USB mapping (SSDTS + USBPorts.kext), and disable unwanted ports via SSDT if necessary.

3. No audio:

   • Verify AppleALC.kext + Lilu are present and layout-id/patches match your motherboard audio codec.

4. Wi‑Fi or Bluetooth issues:

   • Confirm the correct kext (itlwm family for Intel), run HeliPort for Wi‑Fi; for Bluetooth, try re-pairing devices in Bluetooth settings.

5. Sleep Issue (optional), run the comments below and don't forget to disable secure boot & fast boot:

   • sudo pmset autopoweroff 0
   • sudo pmset powernap 0
   • sudo pmset standby 0
   • sudo pmset proximitywake 0
   • sudo pmset tcpkeepalive 0
   • sudo pmset -a hibernatemode 0
   • sudo pmset -a ttyskeepawake 0

   Update (RX 6800 XT Sleep Fix): I previously faced a "Sleep Wake failure" issue where the system would freeze on login screen with a non-functional cursor/keyboard upon waking up.

   • Cause: NootRX.kext was found to be unstable for power management (sleep/wake) on this specific RX 6800 XT setup.
   • Fix: Switched from NootRX.kext back to the industry-standard WhateverGreen.kext with agdpmod=pikera and pcie_aspm=off.
   • Result: Sleep and Wake now function correctly without freezing. If you experience this issue again, ensure you are NOT using NootRX.kext and have the GPRW to XPRW ACPI patch enabled in config.plist.

How to use this EFI (short)

1. Mount the EFI partition of your macOS disk or USB installer.
2. Copy this repo's EFI/ folder to the EFI partition root (replace existing EFI after backing up).
3. Check EFI/OC/config.plist and update paths/serials if you customized SMBIOS or serial numbers.
4. Reboot and choose the OpenCore entry to boot macOS or Windows.

Recommended resources

• OpenCore Install Guide — follow for proper SMBIOS and kext/driver versions.
• Dortania's guide for USB mapping and ACPI patching.
• HeliPort documentation for Wi‑Fi GUI usage.
• OpenRGB project for RGB control notes.

Credits & Acknowledgements

This EFI bundles many community contributions (Lilu, VirtualSMC, Whatever is included in Kexts/), and uses SSDTs and drivers adapted from public guides. Please consult the upstream projects for licensing and attribution.