User guide

3-6 Chapter 3: BIOS setup
Chapter 3
3.2.4 ASUS CrashFree BIOS 3 utility
The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS le
when it fails or gets corrupted during the updating process. You can update a corrupted BIOS
le using the motherboard support DVD or a USB ash disk that contains the updated BIOS
le.
• Prepare the motherboard support DVD or the USB ash disk containing the updated
motherboard BIOS before using this utility.
• For the M4A78-E motherboard, this utility will not function when you use a PATA
optical drive.
• Always connect the SATA cable to the SATA1 / SATA 2 connector; otherwise, the utility
will not function.
Recovering the BIOS from the support DVD
To recover the BIOS from the support DVD:
1. Turn on the system.
2. Insert the motherboard support DVD to the optical drive.
3. The utility displays the following message and automatically checks the DVD for the
BIOS le.
4. Restart the system after the utility completes the updating process.
When found, the utility reads the BIOS le and starts ashing the corrupted BIOS le.
Bad BIOS checksum. Starting BIOS recovery...
Checking for oppy...
Bad BIOS checksum. Starting BIOS recovery...
Checking for oppy...
Floppy found!
Reading le “M4A78E.ROM”. Completed.
Start ashing...
Recovering the BIOS from a USB ash disk
To recover the BIOS from a USB ash disk:
1. Insert a USB ash disk that contains BIOS le to the USB port.
2. Turn on the system.
3. The utility will automatically checks the devices for the BIOS le When found, the utility
reads the BIOS le and starts ashing the corrupted BIOS le.
4. Restart the system after the utility completes the updating process.
DO NOT shut down or reset the system while updating the BIOS! Doing so can cause
system boot failure!
Ensure to load the BIOS default settings to ensure system compatibility and stability. Select
the Load Setup Defaults item under the Exit menu. See section 3.10 Exit Menu for details.