Owner's manual
3-6 Chapter 3: BIOS setup
3.1.4 AFUDOS utility
The AFUDOS utility allows you to update the BIOS le in DOS environment using
a bootable oppy disk with the updated BIOS le. This utility also allows you to
copy the current BIOS le that you can use as backup when the BIOS fails or gets
corrupted during the updating process.
Copying the current BIOS
To copy the current BIOS le using the AFUDOS utility:
1. Copy the AFUDOS utility (afudos.exe) from the motherboard Support DVD to
the bootable oppy disk you created earlier.
2. Boot the system in DOS mode, then at the prompt type:
afudos /o[lename]
The [lename] is any user-assigned lename not more than eight
alphanumeric characters for the main lename and three alphanumeric
characters for the extension name.
Main lename Extension name
A:\>afudos /oOLDBIOS1.rom
• Ensure that the oppy disk is not write-protected and has at least 1024KB
free space to save the le.
• The BIOS screens in this section are for reference only. The actual BIOS
screen displays may not be the same as shown.
The utility returns to the DOS prompt after copying the current BIOS le.
3. Press
<Enter>. The utility copies the current BIOS le to the oppy disk.
A:\>afudos /oOLDBIOS1.rom
AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))
Copyright (C) 2002 American Megatrends, Inc. All rights reserved.
Reading ash ..... done
Write to le...... ok
A:\>
Updating the BIOS le
To update the BIOS le using the AFUDOS utility:
1. Visit the ASUS website at www.asus.com and download the latest BIOS le
for the motherboard. Save the BIOS le to a bootable oppy disk.