If you want to update your BIOS, please execute the BAT file. Don't use EAFUDOS directly.
When you execute the BAT file, it will automatic run the flash utility to update the new BIOS for your mainboard.(Note: Before update BIOS please make sure already disabled Flash Part Protect function in BIOS Setup)
The new BIOS was modified for the following reason:
    1.Fix SmartFan issue.
