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Chapter 2: BIOS information
Write down the BIOS file name to a piece of paper. You need to type the exact
BIOS file name at the prompt.
2. Copy the AFUDOS.EXE utility from the support CD to the bootable floppy disk
that contains the BIOS file.
3. Boot the system from the floppy disk.
4. At the DOS prompt, type the command line: afudos /i<filename.rom>
where “filename.rom” means the latest (or original) BIOS file that you copied to
the bootable floppy disk.
The screen displays the status of the update process.
A:\>afudos /iP4S800DX.ROM
AMI Firmware Update Utility - Version 1.10
Copyright (C) 2002 American Megatrends, Inc. All rights reserved.
Reading file ..... done
Erasing flash .... done
Writing flash .... 0x0008CC00 (9%)
When the BIOS update process is complete, the utility returns to the DOS
prompt.
A:\>afudos /iP4S800DX.ROM
AMI Firmware Update Utility - Version 1.10
Copyright (C) 2002 American Megatrends, Inc. All rights reserved.
Reading file ..... done
Erasing flash .... done
Writing flash .... 0x0008CC00 (9%)
Verifying flash .. done
A:\>
DO NOT shutdown or reset the system while updating the BIOS! Doing so may
cause system boot failure!
The BIOS information on the screen is for reference only. What you see on your
screen may not be exactly the same as shown.
5. Reboot the system from the hard disk.
2.1.3 Using AFUDOS to update the BIOS
The AFUDOS is a DOS-based application that lets you update the BIOS file using
a bootable floppy diskette. AFUDOS also allows you to copy the original BIOS file
to a floppy diskette.
To update the BIOS using the AFUDOS.EXE:
1. Visit the ASUS website (www.asus.com) to download the latest BIOS file for
your motherboard. Save the BIOS file to a bootable floppy disk.