schematics look same than rev. A00
Gigabyte MZ61-HD0 rev. 100 uses 16mb BIOS flash chip, only space for one gen.
BMC FW seems the same. maybe some can replace the BIOS chip with a 32mb one,
or flash only Rome or Milan BIOS (maybe works via BMCWebGUI like done on the MZ32 rev. 1.0)