•This function can support devices such as USB flash disk, or floppy disk with FAT 32/16 format only.

•Do not shut down or reset the system while updating the BIOS to prevent system boot failure!

4.1.3AFUDOS utility

The AFUDOS utility allows you to update the BIOS file in DOS environment using a bootable floppy disk with the updated BIOS file. This utility also allows you to copy the current BIOS file 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 file using the AFUDOS utility:

• Make sure that the floppy disk is not write-protected and has at least 1024KB free space to save the file.

•The succeeding BIOS screens are for reference only. The actual BIOS screen displays may not be same as shown.

1.Copy the AFUDOS utility (afudos.exe) from the motherboard support CD to the bootable floppy disk you created earlier.

2.Boot the system in DOS mode, then at the prompt type: afudos /o[filename]

where the [filename] is any user-assigned filename not more than eight alphanumeric characters for the main filename and three alphanumeric characters for the extension name.

A:\>afudos /oOLDBIOS1.rom

 

 

 

 

 

 

 

 

Main filename

 

 

 

 

Extension name

 

 

 

3.Press <Enter>. The utility copies the current BIOS file to the floppy 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 flash ..... done

Write to file...... ok

A:\>

The utility returns to the DOS prompt after copying the current BIOS file.

ASUS M2N / M2N DH

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