AsRock B450M Steel Legend Ryzen 5 2600 R9 370

AsRock B450M Steel Legend Ryzen 5 2600 R9 370

华擎ASRock 2021-02-02


This is a repo where I store my EFI and steps to get my Ryzen Hackintosh working properly.

Hardware Used

Processor: AMD Ryzen 5 2600
Mainboard: AsRock B450M Steel Legend
Memory: Corsair Vengeance (2x8GB) DDR4-3200
Storage: ADATA XPG SX8200 Pro (512GB) M.2 NVMe (OSX)
Graphics Card: Sapphire Radeon R9 370 4GB

Software Version

AsRock B450M Steel Legend Ryzen 5 2600 R9 370
MacOS Catalina 10.15.7 (Build 19H2)

Reference Links

GPU Spoofing

OpenCore GPU Spoof
Inject Kexts with Hackintool
Bypass CSR Filesystem
Compiling and Decompiling ACPI Tables

Preparing OpenCore USB

Making OC Installer in Windows
Organizing OpenCore EFI
Gathering Required Files
Dumping DSDT
Modifying config.plist

Tools Needed

Hackintool – Injecting Kexts
MaciASL – ACPI Editing IDE for macOS
ProperTree – Edit .plist
SSDTTime – Dump DSDT & Apply General Patch
MountEFI – Mount OS EFI Partition
gibMacOS – Download and Create Bootable OC USB


  1. Prepare the USB
  • Download and load recovery to USB using gibMacOS
  • Put ACPI, Drivers and Kexts into EFI
  • Configure config.plist
boot-args: -v keepsyms=1 debug=0x100 alcid=1 npci=0x2000
  • Patch config.plist with GenSMBIOS
  • Verify serial generated by GenSMBIOS is not in use
  • Pass OpenCore Sanity Check
  1. Configure BIOS
  • Load UEFI Defaults
  • OC Tweaker > Load XMP Setting > XMP 2.2 profile (for DDR4-3200)
  • Advance > Super IO Configuration > Serial Port > Disable
  • Boot > CSM > Disabled
  1. Install macOS
  • Format a drive as APFS with GUID Partitioning Table
  • Proceed with installation
  1. GPU Spoofing (FakeID)
~~External (_SB_.PCI0, DeviceObj)~~
~~External (_SB_.PCI0.PEG0.PEGP, DeviceObj)~~

Modify this 2 lines into ??

External (_SB_.PCI0.PEG0.PEGP, DeviceObj)
Scope (\_SB.PCI0.PEG0.PEGP).
  • Place it into EFI/OC/ACPI
  • Update config.plist (OC Snapshot)
  1. Patch AMD Kexts
  • Disable CSR Proctection from Recovery Mode with csrutil enable --without fs and reboot ?? Bypass CSR Filesystem
  • Copy AMD7000Controller.kext, AMDRadeonX4000.kext and, AMDRadeonX4000HWServices.kext from /Systems/Library/Extensions
  • Modify each Info.plist, replace 0x68191002 with 0x68111002
  • Patch kexts with Hackintool ?? Inject Kexts with Hackintool
  • Re-engage CSR Proctection with csrutil enable from Recovery Mode
  1. Fix Adobe Crashes on AMD
AsRock B450M Steel Legend Ryzen 5 2600 R9 370
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