I need to help with and install issue with Ryzen 9 9900x

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Katanoko1221

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AMD OS X Member
Apr 7, 2025
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Italy
CPU:
Ryzen 9 9900X
Hi everyone!!!
This is my first Ryzentosh build and i've the each problem; When i select "installMacOS" in OC boot menù, the install rest stuck after few second.
I attach EFI, System report and the boot-log containing the error.
I hope there is someone who can fix the efi so I can install macOS!!!

Thanks in advance 🙏🙏🙏

Pc configuration:
Cpu: Ryzen 9 9900x
Gpu: Amd Rx6600
Mbo: MSI x870 Gaming Plus
Ram: Crucial 64 Gb
NvMe: (M2) Crucial P3 plus.
 

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@Katanoko1221 "the doors" is pretty funny :)
To understand leave connected only your mouse and keyboard and disable all other USB ports
and see if you have the same shutdown/reboot problem
 
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Katanoko1221 said:
in short, I try to leave only the Hub of the 4 rear USB 2.0 ports enabled and disable all the others?
Click to expand...
I would connect on the red or blu ones mouse and keyboard
then i would check which ports they are
then disable all the others
ITA
Connetterei mouse e tastiera o sulle rosse o sulle blu
da windows controllerei quali porte sono e disabiliterei tutte le altre
Momentaneamente da bios toglierei anche il wifi e il BT che non sono compatibili...
Queste prove le puoi fare solo tu, e vanno fatte bene altrimenti non si capisce dove e' il problema
 
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fabiosun said:
I would connect on the red or blu ones mouse and keyboard
then i would check which ports they are
then disable all the others
ITA
Connetterei mouse e tastiera o sulle rosse o sulle blu
da windows controllerei quali porte sono e disabiliterei tutte le altre
Momentaneamente da bios toglierei anche il wifi e il BT che non sono compatibili...
Queste prove le puoi fare solo tu, e vanno fatte bene altrimenti non si capisce dove e' il problema
Click to expand...
Ok perfect, later I will take the test. Is it necessary that the problem is also due to some missing Acti?
I currently have the following ACPI: SSDT-CPUR, SSDT-EC, SSDT-HPET.

Thank you - Grazie mille 🙏
 
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I use only first two and ssdt-usbx
No hpet
I have had different amd boards so i think also your is the same or similar
 
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fabiosun said:
I use only first two and ssdt-usbx
No hpet
I have had different amd boards so i think also your is the same or similar
Click to expand...
I've try to do this test but nothing, same result 😢
I attached a folder with this last "Kext & usb path.JSON" and the USB "ACPI-Root" detecten on my Pc Windows.
I hope you can see better all my usb root-path!!!

Thank you for your support 🙏
 

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fabiosun said:
@unclesam you are seein your goal ;)
i dont know which efi are you using by now and if you did a revovery installer or a full installer
A recovery installer needs of a working etherne /wifi to download OS
You have to add Lucy kext for your realtek ethernet and to hope it is compatible with your device id
I would also disable wifi/bt in your bios if your motherboard has them

Edit, by the way from my EFI you should have only add ACPI patches and leave for now MMIO bypass as i did.

You have reassigned 4 MMIO area (skip 1)..and for AM5 platform it is not sure this is an ideal condition ;)
Click to expand...
hi @fabiosun ,
Although I am currently using a USB Ethernet connection, I would like to know if it is possible to get the built-in network card RTL8125 to work properly.
I have tried loading LucyRTL8125Ethernet.kext, but it is not recognized, as shown in the attached image.
截圖 2025-05-24 下午3.09.49.png
Currently, this is the information I obtained from Hackintool (please see the attached image).
截圖 2025-05-24 下午3.06.40.png螢幕擷取畫面 2025-05-24 104320.png
 
Last edited:
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unclesam said:
hi @fabiosun ,
Although I am currently using a USB Ethernet connection, I would like to know if it is possible to get the built-in network card RTL8125 to work properly.
I have tried loading LucyRTL8125Ethernet.kext, but it is not recognized, as shown in the attached image.
Click to expand...
Yes check my message above (no direct experience but different user have proble with new realtek 2,5/5Gbit)
 
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@fabiosun @Edhawk

Important update:
I'Ve try so doing several test get excluding several ports. Finally i’ve discovered that the port “Usb 2.0 rear hub (x4) ” & Usb 3.0 rear red (x4) cause power off issue. The startup problem persist, and i guess that is always cause about a ports. Anyway, how do you advise me to proceed in this case?

Thank in advance 🙏
 
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You could exclude those suspect ports from your USB configuration, assuming you don’t need to use them.
 
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Edhawk said:
You could exclude those suspect ports from your USB configuration, assuming you don’t need to use them.
Click to expand...
Yes of course, i try to exclude these fault ports, anyway i use other ports. For disable theese ports i get re-mapped or i try to open “Kest plist” with “Visual Studio” and i put this “#” infront to the porte code? Thank in advance 🙏
 
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Edhawk said:
You can use Corpnewt's ProperTree Plist Editor in macOS & Windows to edit the UTBMap.kext/Contents/Info.plist.

github.com

GitHub - corpnewt/ProperTree: Cross platform GUI plist editor written in python.

Cross platform GUI plist editor written in python. - corpnewt/ProperTree
github.com github.com
Click to expand...
I’ve excluded the “ (x4) Usb 2.0 rear hub” and the “(x2) rear usb 3.0 10G red”. Now the system shutdown well, but the startup issue persist. Now what do you suggest me to solve this last issue?

Thank in advance 🙏
 
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Clarify the startup issue, i.e. What exactly is happening when you start the system, then we can look at troubleshooting possible causes.
 
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Edhawk said:
Clarify the startup issue, i.e. What exactly is happening when you start the system, then we can look at troubleshooting possible causes.
Click to expand...
In summary, when I go to select the entry "Boot macOS" after a few seconds it show me black screen and to be able to get access to the system I have to turn off and rekindle the PC on average Three times. I attached the link that leads to the error video,
Video Boot-issue

Thanks in advance 🙏
 
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An other important update:
I’ve almost solve the startup boot issue; After that i enabled the “SIP” and update Sequoia at last release and now this boot issue it’s random, but when it happen the pc do several reboot-loop before to enter in macOS. How i could try to solve? @Edhawk @fabiosun

Thanks in advance 🙏
 
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@Shaneee
Hi a question please.
Now it's released "OC 1.0.5" and actually i have "OC 1.0.4" On Ryzen 9 9900x. If i wanna update OC to this last version maybe you must retouch "Opencore.efi" contain the specific patch about this Cpu?

Thank in advance 🙏
 
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Katanoko1221 said:
@Shaneee
Hi a question please.
Now it's released "OC 1.0.5" and actually i have "OC 1.0.4" On Ryzen 9 9900x. If i wanna update OC to this last version maybe you must retouch "Opencore.efi" contain the specific patch about this Cpu?

Thank in advance 🙏
Click to expand...

Yes replace the opencore efi file and the drivers to update it.
 
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