Hello everyone,
I'm experiencing random hard freezes on macOS after updating my motherboard BIOS, and I'm hoping someone can help identify the cause.
System Specifications
Motherboard: ASUS PRIME Z890-P
BIOS Version: 3012
CPU: Intel Core Ultra 5 225F (Arrow Lake)
GPU: AMD Radeon RX 580 8GB
RAM: 16GB DDR5
SSD: Lexar NS100 512GB
SMBIOS: MacPro7,1
OpenCore: (please insert version)
macOS Sequoia 15.x
macOS Tahoe 26 Beta
Problem Description
Before updating the BIOS, both macOS Sequoia and macOS Tahoe were running perfectly stable using the exact same EFI and OpenCore configuration.
After updating to BIOS version 3012, both operating systems became unstable.
The system boots successfully and reaches the desktop without any issues. However, after approximately 10–20 minutes of use, the entire system freezes.
Symptoms
Mouse and keyboard completely stop responding.
Caps Lock no longer responds.
Audio sometimes loops/repeats for a few seconds before the freeze.
In some cases the system remains frozen indefinitely.
In other cases it eventually reboots.
The issue appears more frequently while opening or using applications.
Troubleshooting Already Performed
Reset NVRAM
Disabled Secure Boot
Disabled Fast Boot
Disabled VT-d
Disabled VMD / Intel RST
Removed a suspected failing HDD
Checked CPU temperatures (typically between 50–57°C)
Verified that Windows runs completely stable on the same hardware
Tested both macOS Sequoia and Tahoe
The exact same EFI was stable before the BIOS update
Additional Notes
SMBIOS is MacPro7,1
RX 580 is detected correctly
macOS boots normally and reaches the desktop
No obvious kernel panic is displayed during boot
Both Sequoia and Tahoe are affected
The problem started immediately after updating to BIOS 3012
I have attached my current EFI/config.plist for review.
I would greatly appreciate it if someone could take a look and help identify the cause of these freezes. Since the exact same EFI was completely stable before the BIOS update, I'm wondering whether BIOS 3012 introduced ACPI, CPU power management, CFG Lock, or OpenCore compatibility issues on Z890 / Arrow Lake systems.
Has anyone experienced similar behavior after updating the BIOS on an ASUS Z890 motherboard?
Any help or suggestions would be greatly appreciated.
Thank you very much for your time and assistance.
config.zip
I've created the full dump using the tool you suggested and attached it here. Thank you for helping me with this issue and for taking the time to look into it. I really appreciate your support. Let me know if there's anything else you'd like me to provide. Thanks! SendToMaLd0n.zip