radianttap/efi-b550i-aorus

EFI for Gigabyte B550I Aorus Pro AX with 5900X and RX 6900 XT and with custom-replaced Wifi/Bt card.

Gigabyte B550I Aorus Pro AX · Ryzen 5x00 · Radeon 6x00

• OpenCore ver 0.9.7
• MacPro7,1

macOS support status:

• Ventura 13.6.3 running perfectly.
• Sonoma 14.2 can be installed, Wi-Fi is not working with BCM94360NG card.

Current hardware

• Gigabyte B550I Aorus Pro AX motherboard (rev 1.0)
• AMD Ryzen 9 5900X CPU
• AMD RX 6900 XT graphics card, no riser card.
• Corsair Vengeance LPX 32 GB (2 x 16 GB) DDR4 3600MHz CL18
• WD Black SN850X 2TB NVMe SSD
• WD Black SN770 1TB NVMe SSD
• Broadcom BCM94360NG card, direct replacement for the existing card on the board.

Note: it’s fairly easy to switch between Ryzen 5000 CPUs, just carefully update the Replace value in first 4 Kernel/Patch entries, as per AMD OSX Vanilla repo.

You can use any of these cards: Radeon 6600 XT, 6800, 6800 XT, 6900 XT — all are natively supported.

BIOS

Version F18c

• Fast Boot: Disabled
• CSM: Disabled
• Above 4G Decoding: Enabled
• Resizable Bar Support: Enabled
• PCIe slot speed: Auto
• XMP Profile activated

Usage

1. Update PlatformInfo/Generic stuff with your own, inside config.plist
2. Use your Ethernet’s MAC address for ROM value, as explained in the Dortania guide. Don’t leave it as all 0s.
3. There are two USB maps - one without any onboard USB headers connected (no chassis ports) and one with all headers connected giving additional 2 USB-A 3.0 ports and 2 USB-A 2.0 ports. The former one is enabled in config.plist

Status

Almost everything works, except the usual AMD caveats.

Notes

• OpenCanopy (GUI boot menu) is up and running.
• I don’t boot Windows 10/11 using OC, thus I can’t guarantee it will work. I have Windows installed on separate SSD and switch using Boot Menu.

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Use at your own risk. Nothing is guaranteed, even if you use exactly the same hardware as me.

You may use this EFI as example but be prepared to dive way deeper than you hoped. It’s always advisable to build your own EFI from scratch, following the guide — then you’ll have an idea how things work, how to ask for help in proper channels:

• on Reddit
• Discord server
• AMD-OSX forums

Most importantly — doing stuff step by step will give you knowledge how to act on given help and hints.

Good luck.

Give back

If you found this code useful, please consider buying me a coffee or two. ☕️😋