Some users report crashes when accessing the CPU-Patch section in certain UEFI BIOSes (particularly ASRock and ASUS). This is a known limitation of MMTool 4.50.0.23 with specific vendor implementations.
MMTool 4.50.0.23 is specifically designed for , making it the go-to tool for modifying firmware on motherboards using Intel 6th, 7th, 8th, 9th-Series chipsets, as well as X79 and X99 platforms. While newer versions like 5.0.0.7 and above have been released for Aptio V platforms, MMTool 4.50.0.23 remains the preferred choice for older systems due to its stability, simplicity, and proven track record. mmtool 4.50.0.23
for older BIOS files where newer tools like UEFITool might struggle with reconstruction. Lightweight and portable; no installation required. Some users report crashes when accessing the CPU-Patch