🖥️ Lenovo ThinkCentre M83 Hackintosh (macOS 12 Monterey)

This repository contains the EFI folder for running macOS 12 Monterey on a Lenovo ThinkCentre M83.
It’s a stable and fully working configuration tested on real hardware — including full graphics acceleration with Intel HD 4600.

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⚙️ System Specifications

Component	Details
Model	Lenovo ThinkCentre M83 (SFF)
CPU	Intel Core i5-4670S (Haswell, 4 C / 4 T)
iGPU	Intel HD 4600
RAM	16 GB DDR3 1600 MHz
Storage	256 GB SSD
Ethernet	Intel I217-LM (working with IntelMausi.kext)
Audio	Realtek ALC283
macOS Version	macOS 12 Monterey (12.7.x)
Bootloader	OpenCore 1.0.5

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✅ Working

• Full macOS Monterey installation (no kernel patches required)
• Intel HD 4600 graphics acceleration (QE/CI fully functional)
• Ethernet (IntelMausi)
• Audio (AppleALC, layout-id = 1)
• USB 2.0/3.0 ports
• Sleep, Restart, Shutdown
• App Store, iCloud, iMessage, FaceTime (with valid SMBIOS serials)

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⚠️ Known Issues

• VGA output not supported (use HDMI or DP → HDMI active adapter)
• Dual-monitor setup can cause both screens to go black on wake; use boot-arg igfxonln=1
• AirDrop / Continuity not available (no native Wi-Fi / BT card)
• macOS updates beyond Monterey require additional root patches (use OCLP ≥ 2.3.0 for Sonoma/Tahoe)

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🧩 Kexts Used

Kext	Function
Lilu.kext	Core patch framework
WhateverGreen.kext	Graphics & iGPU patches
VirtualSMC.kext	Emulates SMC hardware
AppleALC.kext	Audio for ALC283
IntelMausi.kext	Ethernet driver
(Optional) SMCBatteryManager.kext	Only for mobile boards

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🖥️ BIOS Settings

• CSM Support → Disabled
• Secure Boot → Disabled
• SATA Mode → AHCI
• Intel Virtualization → Enabled
• Integrated Graphics → Enabled

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🧠 SMBIOS

Using iMac15,1 (Haswell 27" 2014).
Make sure to generate your own serials with GenSMBIOS to avoid iCloud / Apple ID issues.

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🧰 Software Compatibility

Application	Status
Final Cut Pro X	✅ Works with HD 4600
Logic Pro X	✅
Xcode	✅
Chrome / Safari	✅
Adobe Photoshop 2023	⚠️ Slight UI lag on heavy effects
DaVinci Resolve	⚠️ Basic playback only (no Metal GPU)
Steam / Proton Games	❌ Not supported on HD 4600

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💬 Notes

• Always rebuild OpenCore with the latest version before applying macOS updates.
• If you lose display output after reset, re-apply the correct iGPU properties:

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📸 Screenshots

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🔗 Credits

• Dortania OpenCore Install Guide
• Acidanthera Team
• OpenCore Legacy Patcher
• Community testers who helped debug HD4600 framebuffer issues 🙌

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Disclaimer:
This EFI is provided for educational purposes only.
Use at your own risk. All Apple trademarks are property of Apple Inc.