Originally Posted by Abstract Hero
do I just run the exe in windows on the new mobo?
or do I have to full blown "dangerous style" flash it?
I think your confused. Flashing your bios from within Windows is the "Most" dangerous way. When your flashing your bios you need complete stability. The Windows environment has to many processes going on at any given time and that makes it a flashing danger.
If you flash from a floppy make sure it's a new disk and I would run disk check on it before I ever copied a file to it.
burning a .iso of the flash to a cd or flashing from a flash drive is the safest method.
Without knowing anything about your motherboard I can't tell you anything about how to flash your bios. There should be some instructions at the manufacturers site.