Whats your issue performing the mod by the guide?
EDIT: Gonna be straight with you… this guide is very well elaborated, users need to pay attention to what is written and follow its directions.
Whats the issue on Step 2 - BIOS modification (2 alternative Methods)?
One more thing…in mod world, NO ONE can assure you of 100% success or a risk free operation, so its your choice only, no responsibility from the guide author or the forum, take it or leave it.
EDIT: Supermicro wants login for bios update access. Share the bios file or the dump.
MMtool 4.x or 5.x?
UEFI tool method as alternative.