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

Katanoko1221

Member
AMD OS X Member
Apr 7, 2025
92
8
8
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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@Shaneee i used config he posted above in full his efi
I disabled only some stuff like visual patches that could create provlems for amd in installation step
 
<<-------------------------------------------------------------------------[EPIC UPDATE]--------------------------------------------------------------------------------->>

Finally we got the target, OSX running on Ryzen 9 9000X 🙏🙏🙏
After the last touches by "Fabiosun" about mine config.plist and some ACPI customized with "SSDTT" finally Sequoia run on my Ryzen 👍
Now I've only last issue to solve, when I shutdown or reboot the system, when OC boot-menù display me the boot-options and i select "Ryzentosh HD" macOS don't upload the system at first time, but i must reboot and doing "Reset NVram" several time to regain the access to the system. What could be cause of this???
In attach all bench test about my macOS on this cpu, i wait a your feedback about the performances!!!

@Shaneee @fabiosun
Thank you so much guys for your efforts, and for has solve this issue about this CPU 🙏🙏🙏
 

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@Katanoko1221 Happy for you
Backup this working EFI and re do one in more canonic way (to be fast i have bypassed completely MMIO whitelist) and you have also to check well all your bios settings, patches and kext used and so on

By hte way single core cpu seems a bit low, you should have about 3000 on it
however great result to have also 9900x working now :)
Thanks to @Shaneee for his job on this (have you doe a PR with this new code or do you have to clean it before pr it? :) )
 
I need it confirmed that it wasn't just a config issue all along. If it doesn't boot with the current OC release then I'll clean it up and submit a pull request.

@Katanoko1221 are you still using the debug version? Can you upload the log from booting successfully into macOS please.
 
Last edited:
@unclesam your platform is a bit different than @Katanoko1221
However you can use the one i posted for him and then post your sysreport folder and opencore log
Hi, @fabiosun
I have tried #52 copy it to EFI partition and reboot. it is no show for sysreport folder.
what posted/number I could use for generate the sysreport.
 
Hi, @fabiosun
I have tried #52 copy it to EFI partition and reboot. it is no show for sysreport folder.
what posted/number I could use for generate the sysreport.
if you like try this one and see
 

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i would disable from bios wifi and IGPU of your CPU
also this EFI misses ethernet kext for your realtek..we will see if we do some steps forward
 
@Katanoko1221 Happy for you
Backup this working EFI and re do one in more canonic way (to be fast i have bypassed completely MMIO whitelist) and you have also to check well all your bios settings, patches and kext used and so on

By hte way single core cpu seems a bit low, you should have about 3000 on it
however great result to have also 9900x working now :)
Thanks to @Shaneee for his job on this (have you doe a PR with this new code or do you have to clean it before pr it? :) )
Oh yeah this is great!!!

Now I should only solve the problem during the system startup and shutdown, activate the "mmio whitelist" and review the "acpi" regarding the CPU that I put the generic downloaded from Dortania because in the my dump generated by "SSDTTime" I did not understand well which is the ssdt for the cpu.
Now i've posted to you the mine working "EFI" without the "Smbios numbers", the ACPI dump about my PC, and the link about the startup boot issue.
I prefer you to do these final touches, as it is thanks to the last "config.plist" you set up that I was able to get it working and I listened to your suggestion to add the acpi with "SSDT-Time".

Thanks in advance to you and @Shaneee for all their efforts about this buil and the "AMD-osX" community 🙏🙏🙏

Video Boot-issue
 

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I need it confirmed that it wasn't just a config issue all along. If it doesn't boot with the current OC release then I'll clean it up and submit a pull request.

@Katanoko1221 are you still using the debug version? Can you upload the log from booting successfully into macOS please.
The system once log into macOS working perfectly, but when i power on and don't get log at first shot in macOS but i must restart several time.
Instead, when i "power off" Pc macos does not shutdown completely the Pc, but reboot only.
I've detected the two "Log-files" via "Hackintool".
You can see also the video that i've attached in previous post,

Thank so much for your efforts 🙏
 
The system once log into macOS working perfectly, but when i power on and don't get log at first shot in macOS but i must restart several time.
Instead, when i "power off" Pc macos does not shutdown completely the Pc, but reboot only.
I've detected the two "Log-files" via "Hackintool".
You can see also the video that i've attached in previous post,

Thank so much for your efforts 🙏

Yes but I need the log to verify the values etc are correct. Then it can be fine tuned. Video also doesn't load.
 
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i would disable from bios wifi and IGPU of your CPU
also this EFI misses ethernet kext for your realtek..we will see if we do some steps forward
Yes, its confirmed disable from bios wifi and iGPU of my CPU.
I uploaded SysReport.zip and opencore log.
Thanks for your efforts
 

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Last edited:
also a video where the system hangs is useful in this initial steps ;)
 
@unclesam i cant see mmio area in your debug
try this config and post only opencore log (you can also check inside with MMIO string search if you see something)
850 chipset is new for me and i think you are the first one to use it (in public) with hackintosh
 

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but when i power on and don't get log at first shot in macOS but i must restart several time.
Instead, when i "power off" Pc macos does not shutdown completely the Pc, but reboot only.
this is a common problem for other and old platform, you could solve searching about it (fix shutdown)
one problem is due on some bios setting , the other could be somethig to improve in your config.plist
search on bios wake on lan or similar
you should also do an USB mapping and check if it is done properly in Hackingtool
 
@unclesam i cant see mmio area in your debug
try this config and post only opencore log (you can also check inside with MMIO string search if you see something)
850 chipset is new for me and i think you are the first one to use it (in public) with hackintosh
Sorry! I misunderstanded, here is mmio area:
09:268 00:004 OCABC: MMIO devirt start
09:273 00:004 OCABC: MMIO devirt 0xE0000000 (0x10000 pages, 0x800000000000100D) skip 0
09:278 00:005 OCABC: MMIO devirt 0xF7000000 (0x7E00 pages, 0x800000000000100D) skip 0
09:282 00:004 OCABC: MMIO devirt 0xFEE00000 (0x1 pages, 0x8000000000000001) skip 0
09:287 00:004 OCABC: MMIO devirt 0xFEE01000 (0x11FF pages, 0x800000000000100D) skip 0
09:292 00:004 OCABC: MMIO devirt 0x880000000 (0x20200 pages, 0x800000000000100D) skip 0
09:297 00:004 OCABC: MMIO devirt end, saved 935936 KB

lI added #93 config.plist in #86 EFI and reboot:

it is stuck as follow
IMG_4301.jpg
 

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Yes but I need the log to verify the values etc are correct. Then it can be fine tuned. Video also doesn't load.
Ok, i must alter the “Target to 67” in config.plist to re-generated the boot-log?

About the shutdown/power-on issue, I guess that maybe cause is “Usb-Port mapping” because “Hackintool” display me over 15 port. Later i’ll send tou the boot-log.

Thank for your support 🙏
 
this is a common problem for other and old platform, you could solve searching about it (fix shutdown)
one problem is due on some bios setting , the other could be somethig to improve in your config.plist
search on bios wake on lan or similar
you should also do an USB mapping and check if it is done properly in Hackingtool
Maybe this is restate/shutdown issue?
 

Attachments

  • IMG_3635.jpeg
    IMG_3635.jpeg
    4.2 MB · Views: 17
Ok, i must alter the “Target to 67” in config.plist to re-generated the boot-log?

About the shutdown/power-on issue, I guess that maybe cause is “Usb-Port mapping” because “Hackintool” display me over 15 port. Later i’ll send tou the boot-log.

Thank for your support 🙏

Yes 67 will output the log from a debug build of OC.
 
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Maybe this is restate/shutdown issue?
you have different controllers xh00 as my asus so i cant say from this picture
I see an hub (internal) mapped as USB2 and maybe also others usb are mapped wrong
i will search in bios option for reboot shutdown problem
obviusly i would also try to map well your USB
 
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Reactions: Katanoko1221
Sorry! I misunderstanded, here is mmio area:
09:268 00:004 OCABC: MMIO devirt start
09:273 00:004 OCABC: MMIO devirt 0xE0000000 (0x10000 pages, 0x800000000000100D) skip 0
09:278 00:005 OCABC: MMIO devirt 0xF7000000 (0x7E00 pages, 0x800000000000100D) skip 0
09:282 00:004 OCABC: MMIO devirt 0xFEE00000 (0x1 pages, 0x8000000000000001) skip 0
09:287 00:004 OCABC: MMIO devirt 0xFEE01000 (0x11FF pages, 0x800000000000100D) skip 0
09:292 00:004 OCABC: MMIO devirt 0x880000000 (0x20200 pages, 0x800000000000100D) skip 0
09:297 00:004 OCABC: MMIO devirt end, saved 935936 KB

lI added #93 config.plist in #86 EFI and reboot:

it is stuck as follow
View attachment 16942
check if you see ACPI errors in your verbose output
 
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