Specific uATX i855gm to support dothan need

Hello i need to support a dothan core on the old i855gm board.
When i uses the Award BIOS Editor 1.0, open my BIOS dump, adding a 6d6 dothan microcode .bin file, then save it.
When next attempt to open it says that the CRC is bad. What i do wrong?

I already make a full hardware mod, system starts, and boot NO ACPI windows core. i need to ACPI support (power button -soft off etc)

  awdbiosoldorig.bin (Size: 512 KB / Downloads: 2)

  cpu006D6.bin (Size: 2 KB / Downloads: 0)

  cpu000006d6_plat00000020_ver00000018_date20041017.bin (Size: 2 KB / Downloads: 0)