ASUS SABERTOOTH 990FX/GEN3 R2.0 3-45
Chapter 3
• Thisfunction can support devices such as a USB ash disk with FAT 32/16 format andThis function can support devices such as a USB ash disk with FAT 32/16 format and
single partition only.
• DONOT shut down or reset the system while updating the BIOS to prevent systemDO NOT shut down or reset the system while updating the BIOS to prevent system
boot failure!
Ensure to load the BIOS default settings to ensure system compatibility and stability. Select
the Load Optimized Defaults item under the Exit menu. See section 3.9 Exit Menu for
details.
3.10.3 ASUS BIOS Updater
The ASUS BIOS Updater allows you to update the BIOS in DOS environment. This utility also
allows you to copy the current BIOS le that you can use as a backup when the BIOS fails or
gets corrupted during the updating process.
The succeeding utility screens are for reference only. The actual utility screen displays may
not be same as shown.

Before updating BIOS

1. Prepare the motherboard support DVD and a USB ash drive in FAT32/16 format and
single partition.
2. Download the latest BIOS le and BIOS Updater from the ASUS website at
http://support.asus.com and save them on the USB ash drive.
• NTFS is not supported under DOS environment. Do not save the BIOS le and BIOS
Updater to a hard disk drive or USB ash drive in NTFS format.
• Do not save the BIOS le to a oppy disk due to low disk capacity.
3. Turn off the computer and disconnect all SATA hard disk drives (optional).