EFI-X99-MACHINIST-RS9-RX6600M

Plataform: Desktop | Intel Xeon
Motherboard: MACHINIST X99-RS9
CPU: Intel Xeon E5-2670 v3, 2300 MHz (12C/24T)
GPU: Radeon RX6600M (8 GB)
Memory: 16GB RAM
Audio: Realtek ALC897
SMBIOS: iMacPro1,1
macOS: Sonoma 14.4
Opencore: 0.9.9

BIOS Settings

Disable

• Fast Boot
• Secure Boot
• Serial/COM Port
• Parallel Port
• VT-d (can be enabled if you set DisableIoMapper to YES)
• Compatibility Support Module (CSM).
• Thunderbolt(For initial install, as Thunderbolt can cause issues if not setup correctly)
• Intel SGX
• Intel Platform Trust
• CFG Lock (MSR 0xE2 write protection)
  • This must be off, if you can't find the option then ENABLE AppleXcpmCfgLock.
  • Your hack will not boot with CFG-Lock enabled.
  • For 10.10 and older, you'll need to ENABLE AppleCpuPmCfgLock as well.

Enable

• VT-x
• Above 4G decoding.
  • This must be on, if you can't find the option then add npci=0x2000 to boot-args.
  • Do not have both this option and npci on boot-args enabled at the same time.
• Hyper-Threading
• Execute Disable Bit
• EHCI/XHCI Hand-off
• OS type: Windows 8.1/10/11 UEFI Mode
• SATA Mode: AHCI

References

https://github.com/luchina-gabriel/BASE-EFI-INTEL-HEDT-4THGEN-X99-HASWELL-E
https://dortania.github.io/OpenCore-Install-Guide/config-HEDT/haswell-e.html
https://dortania.github.io/Getting-Started-With-ACPI/