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My Hackintosh EFI based on ASRock Z390 Phantom Gaming-ITX/ac and OpenCore.

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mrshadow1994/EFI_Asrock_Z390_Phantom_ITX_OC

 
 

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Part List

Item Model Notes
CPU Intel i7 8700
MotherBoard ASRock Z390 Phantom Gaming-ITX/ac
WIFI BLE BCM94360CS2
Memory Asgard 32GB * 2 OC doesn't require remapping 32GB single memory like Clover did.
dGPU RX460
System macOS 11.0.1 direct upgrade from 10.15.6 to 11.0.1 using build 2aa2cfe.

Configs

BIOS Settings (BIOS Version 4.30)

Location Item Default Value My Value Reason and Result
Advanced Fast Boot Disabled Disabled DK.
Advanced CFG Lock Disabled Disabled Need more resarch
Advanced VT-d Enabled Enabled Enable quirk DisableIoMapper then no need to disable VT-d.
Advanced CSM Enabled Disabled Everybody kept saying disable it but it seems to be no harm except for the super high resolution during booting on my 4K monitor. It's also no harm disabling it so up to you.
Advanced VT-x Enabled Enabled Need more research
Advanced Above 4G decoding Disabled Disabled Need more research
Advanced Hyper Threading Enabled Enabled Need more research
Advanced Execute Disable Bit Enabled Enabled Need more research
Advanced EHCI/XHCI Hand-off Disabled Enabled Boot stalls if with USB devices connected. Seems to be the only necessary change in BIOS.
Others OS type No option No option No option
Advanced Intel SGX Enabled Enabled Need more research
Security Intel(R) Platform Trust Technology Disabled Disabled Need more resarch
Advanced Thunderbolt Enabled Enabled Need more resarch
Advanced iGPU Multi-Monitor Disabled Disabled Probably necessary for those using dGPU.

OpenCore Config Details

Not all the configs were explained here

ACPI

ACPI SSDT Patch

SSDT-AMAC fix RTC bug

macOS requires RTC._STA to return 0x0F, meaning RTC enabled. While Asrock BIOS (ASUS and some other compaines too) enabled AWAC and disabled RTC by default (Probably for Windows).
After reviewing the codes, I replaced the old renaming hotpatch with SSDT-AWAC SSDT patch. The renaming hot patch replaced the If ((STAS == One)) of RTC._STA in DSDT with If ((0xFF || 0xFFFF)) , so the RTC._STA will always return 0x0F. It might lead to a conflict in the future, since both RTC and AWAC are enabled at the same time.
If you failed to boot, you may find the renaming method in an older commit, or use SSDT-RTC0 instead.
Reference: FIX for boot hangs after BIOS update (ACPI PATCH), ACPISamples

SSDT-PLUG enables Native Power Management

XCPM was said to bring better performance ( or sth blah blah ). At least it's harmless.
Check status by sysctl -n machdep.xcpm.mode. 1 for enabled. You might need to change PR00 to CPU0, depending on your MB model. You could query this by ioreg -p IODeviceTree -c IOACPIPlatformDevice -k cpu-type -k clock-frequency | egrep name | sed -e 's/ *[-|="<a-z>]//g'
You might need to enable Intel SpeedStep in your BIOS. For my MB it's enabled by default.
Reference: Fixing Power Management, SKL+平台XCPM+HWP完整原生电源管理探究, macOS Native CPU/IGPU Power Management, SSDT-PLUG.dsl

SSDT-PPMC fix energy saver options

This SSDT fix seems to be harmless.
You could verify it by looking into Preferences. You should be able to see 5 options (including power nap) instead of 2.

Kernel

Quirk

  • DisableIoMapper = YES.

This option is a preferred alternative to dropping DMAR ACPI table and disabling VT-d in firmware preferences, which does not break VT-d support in other systems in case they need it.

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My Hackintosh EFI based on ASRock Z390 Phantom Gaming-ITX/ac and OpenCore.

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