Asus P4P800 SE - Manual (Page 110)

5-8 Chapter 5: Software support
4. From the selection that appears,
choose a logo image. Click
Next.
6. The next screen prompts you to
flash the original BIOS to update
it with the new boot logo. Click
Flash to update the BIOS.
7. When finished, click Exit, then
reboot your computer.
Your system boots with the new
boot logo.
5. When you click on an image, it
displays larger on the MyLogo2
screen.
Instead of starting from ASUS Update, you may also launch ASUS
MyLogo2 directly from the Windows Start menu to change your BIOS
boot logo. After you have modified the BIOS file with the new logo, use
the ASUS Update utility to upload the new BIOS.
If you wish to make the
logo image smaller, click
on the arrow on the Ratio
item and select your
desired scale.
If you wish, you may create
your own boot logo image in
GIF, JPG, or BMP file
formats.