I believe that friends who have not touched the motherboard repair do not know what file Awdflash.exe is. We often use Awdflash.exe to refresh the motherboard BIOS program. The motherboard BIOS update is often used. Awdflash.exe can be downloaded from the official forum of the motherboard. The Awdflash command contains many parameters. Each parameter has different functions. How to use Awdflash? The following tutorial will be covered in detail. Why upgrade the motherboard BIOS? Everyone in the process of using the computer often encounters some hardware incompatibility, such as Windows XP flower screen or sound card can not sound, the motherboard is not compatible with the new hard disk, etc., some of which can be solved by updating the BIOS. . Due to the continuous updating of hardware technology, the motherboard officially will provide the latest BIOS version to provide users with updates. Update the BIOS to get new features and hardware support for free, such as support for high-speed hard disk interface Ultra ATA/66/100, 128MB or more of large memory. New CPU. And the new version of the BIOS will generally fix many older versions of the bug. In addition to periodically updating the BIOS file of your favorite machine, the hardware master also makes personal modifications to the BIOS, such as adding personal information or inserting the logo when booting and shutting down. At this time, Awdflash.exe can show its talents. Overview of BIOS Types There are three main types of BIOS on the market: Award BIOS, AMI BIOS, and Phoenix BIOS. The Award BIOS is a BIOS developed by Award Software. It is the most widely used BIOS in the BIOS. Can be found in the first line of the boot information, such as "Award Modular BIOS V4.51G", tell us that this is Award BIOS, the version is 4.51, you just download the latest version of the BIOS file corresponding to the motherboard model from the Internet, in pure DOS In the state, run Awdflash.exe from the floppy disk, and then follow the prompts to complete the BIOS update of the motherboard step by step. Generally speaking, this process will not be completed in two minutes. Awdflash.exe parameter description /? : Display help information /py : Auto-complete BIOS refresh task /sy: Back up the original BIOS to disk /sb: Forcibly skip BootBlock module/cp when upgrading BIOS: Clear Plug and Play data (ESCD) after refresh /cd: Clear DMI data after the BIOS is refreshed /r: Automatically restart after the BIOS is refreshed /pn: Do not run the upgrade program /sn: Do not back up the system's old BIOS file /sd: Save DMI data to a file /cks : Display the data of the backup file when updating the BIOS /tiny: only take up very little memory /e: automatically return to the DOS command line state after the refresh is completed /f: use the original BIOS data when refreshing /ld: clear after the refresh CMOS data and does not reboot the system /cksxxxx: Compare the old backup BIOS file with the new BIOS file. In theory, upgrading the motherboard BIOS is the same as upgrading the hardware driver, if you follow the correct steps, generally There will be no accidents. However, it is also possible to encounter the following conditions: 1. Sudden power failure during the process of writing a new BIOS. 2. There are bad blocks on the boot floppy disk for upgrade. 3. The refresh program forcibly refreshes the BootBlock (boot module). 4, the BIOS file itself is damaged, such as a virus. If you encounter one of the above conditions, the BIOS update will fail. If it fails, Awdflash.exe will work again. I have already told you about the various parameters of Awdflash. When upgrading the BIOS. Use the /sb parameter, so the upgrade program will forcibly skip the refresh of the BootBlock in the motherboard BIOS. Only after using the /sb parameter when upgrading the BIOS, we can use the unbroken BootBlock to restore the BIOS data before the upgrade, otherwise it may not be recovered. Even if you have an emergency recovery disk in your hand, it will not work. We only need to use the boot disk with Awdflash.exe and *.bin to boot the system (it is best to have the Autoexec.bat file with the content "Awdflash.exe *.bin /sn /py" in the floppy disk, so that it can be avoided. Blind operation or trouble finding ISA graphics card), if the BootBlock is not destroyed, we can see that the floppy drive light is on, and the floppy drive is also reading the disk, after the light is off, the BIOS recovery is successful, after the restart It will be all OK.