ASUS P4S800-MX User Manual

AFLASH is a Flash Memory Writer utility that allows you to update the BIOS using
a bootable floppy disk, or copy the original motherboard BIOS. This utility only
works in DOS mode.

To copy the original motherboard BIOS file:

1. Copy the AFLASH utility from the support CD to the boot disk you created.

2. Reboot the computer from the floppy disk.

3. In DOS prompt, type

AFLASH, then press
<Enter> to run
AFLASH.

4. Select 1. Save

Current BIOS to
File, then press
<Enter>. The Save
Current BIOS To File
screen appears.

5. Type a filename and

the path, for example,
A:\XXX-XX.XXX, then
press <Enter>.

BIOS setup must specify “Floppy” as the first item in the boot sequence.

AFLASH does not work in the DOS prompt within Windows

®

, and does not work

with certain memory drivers that may be loaded when you boot from the hard
drive. It is recommended that you reboot using a floppy disk.

If the word “unknown” appears after Flash Memory, the memory chip is either
not programmable or is not supported by the ACPI BIOS and therefore, cannot
be programmed by the Flash Memory Writer utility.