Simply plugging in an AMD GPU isn't enough. You must correctly configure your motherboard's BIOS to avoid conflicts. You should look for these settings and set them as follows:
Have a unique UHD 770 overheating issue? Drop your OpenCore debug log in the comments below.
The UHD 770 was never meant for macOS. But for three beautiful, unstable, sweltering weeks, Marco had made it scream. And sometimes, that’s enough.
Let’s be brutally honest. The is a "hot" topic because it is the final frontier for Intel Hackintosh.
However, "hot" developments in community-driven patching have made it possible to use these modern iGPUs with full acceleration, a feat previously thought impossible. The Compatibility Breakthrough
Native-like framebuffer injection
In some instances, adding -igfxmetal in OpenCore can help improve graphics performance and power efficiency.
Your motherboard is cooking your UHD 770. Enter BIOS (usually F2/Del) and apply these changes:
Using inaccurate tools can make it seem like the machine is overheating, though the UHD 770 is generally efficient when properly configured.
Because you cannot use the UHD 770 for display output, your OpenCore EFI setup must reflect this architecture change. 1. BIOS Settings
The Intel UHD 770 graphics engine is part of the Intel Alder Lake (12th Gen) and Raptor Lake (13th/14th Gen) architectures.
Displays are often locked to 1024x768 or 1920x1080 without scaling.
Based on the search query "uhd 770 hackintosh hot," this report addresses two distinct but related topics: the of the Intel UHD 770 iGPU on macOS (Hackintosh) and the thermal/heat issues associated with running this hardware.
Essential kexts and tools
A more targeted community solution comes in the form of a custom kext (kernel extension) named "NootedBlue." This is an unsupported third-party driver designed specifically to enable graphics on Intel's newer integrated GPUs, like those found in Tiger Lake, Alder Lake, and Raptor Lake processors, on macOS.
You must ensure your IGPU is properly defined under DeviceProperties in your config.plist . For UHD 770 (Alder Lake), you should ideally use a spoofed ID to match a supported Skylake or Coffee Lake iGPU if you are relying on it for display, or configure it properly for compute-only.