ASUS M5A99FX PRO R2.0
2-13
Chapter 2
2.2 BIOS update utility
2.2.1 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.
This USB port can be switched
to support USB BIOS Flashback
(USB BIOS Flashback port).
You can also download the BIOS from the ASUS ofcial website (www.asus.com). Rename
the le as M5A99FX.CAP, save it to a USB portable device, and place it in the root
directory.
2. Insert the USB storage device to the USB Flashback port.
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 ashing 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.