I know a way to overcome it, but it isn't simple. Intel is famous for difficulties on flashing modified BIOSes. It's a known issue with LZMA compression code compiled by Apple compilers, please try using version for Windows. Program version for OS X crashes with 'Segmentation fault' message, what to do now? If you have non-AMI BIOS, I don't know any 100% working method except using external programmer, which are cheap and fast nowadays.Ĥ. If you have AMI UEFI BIOS (all modern desktop boards now have one, DO NOT TRY IT ON NOTEBOOKS), then you can use this method. If you have ASUS board with USB BIOS Flashback support, use it to flash your modified BIOS. I can't flash my patched BIOS due to 'security verification failed', what can I do? No, but there are many people with patched BIOSes of all kinds, and very few negative reports.ģ. I have patched my BIOS, can you guarantee it will work after flashing? No, if the last message is 'Output file generated', it's OK to have any other messages.Ģ. not found' messages in program output, is it bad? Please attach AIDA64's or DarwinDumper's report file to your 'PMPatch didn't work for me' message.ġ. This program can produce corrupt BIOS images, try them on your own risk. Usage: pmpatch /path/to/original.bios /path/to/patched.bios The utility is BSD-licensed and available on GitHub.Ĭompiled versions for Windows and OS X are here.

This patch works on boards based on 5th, 6th, 7th and 8th series of Intel chipsets, so NM10 and similar ones are supported - there is nothing to patch in that BIOSes. It's tested on AMI, Phoenix and Insyde UEFI BIOSes and it works. I wrote an utility to patch modern UEFI BIOSes from different vendors to prevent them from locking MSR 0圎2 and therefore make the system with patched BIOS compatible with native OS X power management.

Download the new for mac UEFITool A67