Asus P4S800-MX - Manual (Page 40)

2-8 Chapter 2: BIOS information
4. From the FTP site, select the BIOS
version that you wish to download.
Click Next.
5. Follow the instructions on the
succeeding screens to complete
the update process.
If you selected the option to update the
BIOS from a file, a window pops up
prompting you to locate the file. Select
the file, click Save, then follow the
screen instructions to complete the
update process.
3. If you selected updating/
downloading from the Internet,
select the ASUS FTP site nearest
you to avoid network traffic, or
choose Auto Select. Click Next.