Easy update from macOS 13.3.1(a) with opencore 0.9.2 but onboard audio has disappeared. Motherboard GA-X99-UD3P with xenon ES-2699. Onboard audio works fine on Fedora linux.
You have power management problems. With open core you have to follow post install setup in the guide. I went through most fixes and finally have a stable system, sleep, shut down working good. This is my latest open core 0.7.4 EFI:
Update went fine. But booting up has some random purple lines on screen. I have random kernel panics on boot. The system was very stable on version 10.14.4. The first or second boot has panics but then I can boot into system.
I had the same problem on Sierra. I upgraded to High Sierra. The problem is not as bad or frequent of crashing on shut down.
Darwin dumper suggested my RTC is improperly set. I have RTC checked in Clover configurator. Darwin dumper output:
CMOS Dumper V0.1.:)
DSDT has RTC Length of 2...
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