Tahoe Installation on B850

Koffein71

New member
AMD OS X Member
Jan 22, 2026
1
0
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CPU:
Ryzen 9800X3D
Hi Forum,

my old Haswell Hackintosh got broke before christmas and now i've got a new PC with this items:

CPU: Ryzen 9800X3D
MB: MSI MAG B850 TOMAHAWK MAX WIFI
RAM: Kingston FURY DIMM 64 GB DDR5-6000 (2x 32 GB)
SSD: 2x WD Black SN8100 4TB (PCI-E 5.0) (1xWin11 1xLinux)
1x WD Black SN850 2TB (PCI-E 4.0) free for macOS
1x Crucial MX500 2TB (SATA3) with a macOS Tahoe installed on my old broke Hackintosh
GPU: Radeon 6800
Internal LAN will not be used, because it would not supported by macOS. Instead i will use USB2LAN adapter.

My goal is to boot the Tahoe installation on the SATA SSD and then to clone it to the 2TB nvme.

I've tried to create an EFI with OpCore Simplify but the attempt failed as espected.
Further trials with Dortania Guide and a lot of forum readings failed too.
I use OpenCore 1.0.6-DEBUG and most kexts are debug version too.
AMD patches (beta) has been applied and ACPI files has been mostly generated by SSDTTime.

Most attemps end with this log line:
Code:
AAPL: #[EB|LOG:EXITBS:START]

I am not sure about the root cause, found nothing about B850 builds, so maybe there is a specific problem with this chipset.
Has someone of you experience with AM5 B850 boards ? Are there any obstacles i am not aware of ?
As attachment my EFI folder and the logfile of last boot attempt.
Perhaps someone can provide some clues?
 

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