UHD 770 is not officially in any real Mac. We fool macOS by spoofing it as a different GPU (usually using the 07009B3E or 0A00803E platform IDs meant for older or different Intel silicon). This mismatch means the I/O voltage and power gating registers might not initialize perfectly, leaving certain power rails "always on."
But there is a catch. A hot catch.
Do NOT use 07009B3E if you rely on the iGPU for driving a 4K display output without a dGPU. If you are iGPU-only, use 0A00803E but add -igfxblr (igfx bypass link rate) to boot-args to prevent overzealous link training. Fix #2: SSDT-PLUG for C-States A hot Hackintosh usually means your CPU cores never enter deep C-states (C6/C7/C10). Because the iGPU is inside the CPU package, if the cores are awake, the iGPU VRM stays active. uhd 770 hackintosh hot
Is this normal? Is your build failing? This deep dive explores why the UHD 770 runs hot in Hackintosh environments, how to differentiate between macOS driver quirks and hardware failure, and the step-by-step solutions to cool down your "hot" Hackintosh. Before panicking, understand that the UHD 770 is a different beast than previous iGPUs. UHD 770 is not officially in any real Mac