PPCnostalgic

I tried that patch but there are many kernel panics (5 - 6 over 10 startup), with the patched kext there are only 1 - 2 over 10 startup. I never got rid of this issue.

Hi Hervé. The patched AppleIntelCPUPowerManagement kexts works for my Xeon W3690 (Gulftown) as well. My HP Z400 hangs with a Kernel panic at boot with vanilla AICPUPM kext (Mojave 10.14.4) but using your patched kext it works fine despite is not a Sandy/Ivy Bridge cpu. Thank you!! Rob