Bios Update Utility - Asus Sabertooth X99 User Manual

2.2

BIOS update utility

USB BIOS Flashback
USB BIOS Flashback allows you to easily update the BIOS without entering the existing BIOS
or operating system. Simply insert a USB storage device to the USB port, press the USB BIOS
Flashback button for three seconds, and the BIOS is updated automatically.
To use USB BIOS Flashback:
1. Place the bundled support DVD to the optical drive and install the USB BIOS Flashback
Wizard. Follow the onscreen instructions to complete the installation.
2. Insert the USB storage device to the USB Flashback port.
• We recommend you to use a USB 2.0 storage device to save the latest BIOS version
for better compatibility and stability.
• Please ensure to use the BIOS file named X99ST.CAP. Please refer to
Chapter 3: BIOS setup for more information.
3. Launch the USB BIOS Flashback Wizard to automatically download the latest BIOS
version.
4. Press the BIOS Flashback button for three seconds until a flashing light appears, which
indicates that the BIOS Flashback function is enabled.
5. Wait until the light goes out, indicating that the BIOS updating process is completed.
USB BIOS Flashback button
For more BIOS update utilities in BIOS setup, refer to the section Updating BIOS in
Chapter 3.
• Do not unplug portable disk, power system, or use the CLR_CMOS jumper while
BIOS update is ongoing, otherwise update will be interrupted. In case of interruption,
please follow the steps again.
• If the light flashes for five seconds and turns into a solid light, this means that
the BIOS Flashback is not operating properly. This may be caused by improper
installation of the USB storage device and filename/file format error. If this scenario
happens, please restart the system to turn off the light.
• Updating BIOS may have risks. If the BIOS program is damaged during the process
and results to the system's failure to boot up, please contact your local ASUS Service
Center.
ASUS SABERTOOTH X99
USB BIOS Flashback port
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