arifin[xyz]

WELCOME BLUD

macOS 14.7.2 Sonoma on Z270 using OpenCore 1.0.3

HARDWARE

• Asus Strix Z270i
• HDMI (v2.0) and DisplayPort (v1.4)
• Intel i7-7700K
• Intel HD 630
• AMD Radeon RX 580
• Zotac 1080Ti Mini
• Asus GTX 750Ti (Disabled with SSDT)
• Realtek ALCS1220A
• Ethernet Intel I219V7
• Wi-Fi + BT Wireless 8265 ( Taken from a broken laptop. This board comes with Atheros in most markets I believe.)
• Android Tethering using HoRNDIS
• 2 x Samsung 970 EVO (Dont recommend Samsung drives anymore. Lots of reliability issues and scares. BUYER BEWARE!!!)

BIOS

• CSM: Disabled (mandatory)
• VT-d: Enabled (Needed post-Big Sur + WSL2 in Windows)
• Platform Power Management: Disabled ( stabilise your machine before enabling ASPM )
• XHCI Hand-Off: Enabled
• Network Stack: Disabled
• Wake on LAN: Disabled
• Initial Display Output: CPU Graphics
• Integrated Graphics: Enabled
• DVMT Pre-allocated: 1024MB
• Above 4G Decoding: Enabled
• CFG Lock: Disabled (mandatory)
• Fast Boot: Disabled
• OS Type: Windows 11
• Secure Boot: Disabled. Not worth enabling AT ALL if you're dual-booting Win 11. Microsoft always wants to take over the whole PC.

WHAT WORKS?

• RX580 worked well for years and died. My 1080Ti died just few months in. Such is my luck. Currently have my old 750Ti for Windows. Disabled in macOS with an SSDT and working framebuffer settings for iGPU with 2 displays@144hz
• Shutdown and restart
• Ethernet
• Sound ( Realtek and HDMI )
• USB ports (USB port map for this board)
• Wifi + Bluetooth

WHAT DOESNT?

• Sleep: iGPU hacks are fundamentally broken. It will just shut down and be greeted by an annoying system report upon reboot. Functional sleep requires an AMD GPU. If you're ok with "Fake Ass Sleep" just extend your screensaver to "never".

ACPI

DMAR/HPET/PLUG/XOSI/SBUS-MCHC/USB-Reset

Patched using SSDTTime from Windows

SSDT-ECX.aml

USB Power settings and Fake EC (Laptop) because z270i has multiple EC's

SSDT-NOVIDIA.aml

Disable GTX 750Ti for macOS

Kexts

Source the Kexts yourselves. Refer to config. Only USBModern and HoRNDIS provided in Kext folder

• Lilu 1.7.0
• NVMEFix 1.1.2
• HibernationFixup 1.5.2
• BluetoolFixup 2.6.9
• SkinnyBluetoothFirmware 2.4.0 -> IntelBluetoothFirmware debloated specific to Intel® Dual Band Wireless-AC 8265. 11230KB -> 629KB
• IntelBTPatcher 2.4.0
• IntelMausi 1.0.8
• SkinnyALC 1.8.9 -> AppleALC debloated specific to Realtek ALCS1220A. 4003KB -> 101KB
• SkinnyAirport 2.3.0 -> AirportItlwm debloated specific to Intel® Dual Band Wireless-AC 8265. 16MB -> 8MB
• WhateverGreen 1.3.7
• VirtualSMC 1.3.4 inc SMCProcessor + SMCSuperIO
• HoRNDIS 9.2 - Kext extracted HoRNDIS. Android Tethering for macOS

WARNING - Do not use these kexts if ur wifi chip/audio codec is different.

USBModern.Kext

While you can map from macOS, its annoying as hell. If you're needing to map from scratch, its best to do it in Windows with USBToolBox.

IMPORTANT - USBToolbox's Kext didnt work for me but the actual mapping was legit - so i just copied it over to my previous mapping made with the OG USBMap. If you're confused just refer to USBModern.Kext or brush up on your skills:

Links

• Dortania
• OpenCore Visual Beginners Guide

AUTHOR NOTES

• Funky Icons
• Been using SMBIOS iMac19,1 for a long time now. Works well. When i had my RX580 I was using iMacPro1,1 just for hardware DRM (Netflix etc).
• EnableSafeModeSlide, ProvideCustomSlide, ProvideMaxSlide = FALSE (for this MB)
• Security -> SecureBootModel = j185 or Default
• 7700K is hot-ass chip. Delidding and Liquid Metal helped tremendously in lowering temps esp where its hot n humid (Kuala Lumpur). Managed a steady OC at 5.1Ghz when i used to run it as my main machine. Now actually undervolting as its mainly used for Plex

All attempts at hacking is solely your responsibility. Don't get mad at me if shit breaks LOL! I hope this can serve as one of the many references for folks out there.

HAPPY HACKING