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That's easily fixed. You can use device properties in your config like in my screenshot below. Right click the device in Hackintool and copy Device Path.

Yes. Once OpenCore has handed over to the kernel it becomes either a config issue with something not being applied to the kernel or a kext issue. Could also be a BIOS issue.

Easiest way is to record a video to see what it's doing. On the plus side it's no longer an OC issue :D

This is all correct, 01:006 00:841 OCCPU: Signature B40F40 Stepping 0 Model 44 Family F Type 0 ExtModel 4 ExtFamily B uCode 0 CPUID MAX (10/80000028) 01:959 00:952 OCCPU: Entering AMD CPU detection routine... 02:811 00:852 OCCPU: Detected AMD Family 1Ah 03:663 00:852 OCCPU: MaxExtId =...

The AMD part is calculating the cores correctly but it’s not reading them from firmware correctly. This is out of our control. So the 9700 boots? Where does the 9900X get stuck?

@Ejh4286 @Alex4querty Please test this build. It should now work. I had misdefined the CPU Family by mistake...

Strange, nothing in the log I'm looking for. Can you check DisplayLevel in your config. Set it to 2147483647. This will all debug logs are captured.

@Ejh4286 have you tested latest one I uploaded?

Fix is described here, https://dortania.github.io/OpenCore-Install-Guide/troubleshooting/extended/userspace-issues.html#stuck-on-your-mac-needs-a-firmware-update-in-order-to-install-to-this-volume

It's almost as if the 9900X doesn't provide the core count through the CPUID 0x8000001E. I've added some debug statements outwith this check to confirm and added a fallback. Please test and report with the OC log. Thanks.

@Ejh4286 is that with the latest build? I'm not seeing my debug logs there...

Did it not boot at all? Did you have a previous working system with the same motherboard at all? Do you have the MMIO setup? The OC log is going to keep reporting 14 cores regardless I think. In that last test I had 12 cores hardcoded, // Apply a fix for Ryzen 9 9900X which...

Thanks for testing. Please try this. Based on the report earlier from Linux it shows that 14 cores are reported in the EBX register. This leads me to believe it's a firmware issue with the CPUs. This version forces 12 cores only when 14 cores are detected. Let's hope it works. Make sure you've...

Ok leave that quirk enabled. The issue doesn't seem to be related to the AMD code within OpenCore but rather the MP services. I've adjusted it in this version and reverted the AMD code back to what I had originally.

I don't understand. Three different caclulations and still the wrong core count. Can you test something for me @Alex4querty? I don't think it'll boot but try disable the ProvideCurrentCpuInfo quirk and send the log. I'm wondering if this is the cause.

Can you send OC log please.

Take a look here for that, https://dortania.github.io/Getting-Started-With-ACPI/Desktops/desktop-disable.html

I don't see anything that would cause this panic in your EFI. Try using SMBios MacBookPro16,3 or iMac20,1. Also I'll assume you've got display plugged into the Motherboard not the Nvidia GPU. I'd also test with this removed. You may need to create an SSDT to disable the GPU as the bootarg may...

Any 9900X users tested this yet?

@fabiosun @Alex4querty Try this build please and attach OC log.