Asus CROSSHAIR IV EXTREME, User Manual, Page: 80 / 172

3-4 Chapter 3: BIOS setup
3.1.2 ASUS EZ Flash 2 utility
The ASUS EZ Flash 2 feature allows you to update the BIOS without having to
use a DOS-based utility. The EZ Flash 2 utility is built in the BIOS chip so it is
accessible by pressing <Alt> + <F2> during the Power-On Self Tests (POST).
Before you start using this utility, download the latest BIOS from the ASUS
website at www.asus.com.
To update the BIOS using EZ Flash 2
1. Insert the USB flash disk that contains the latest BIOS file to the USB port,
and then launch EZ Flash 2 in any of these two ways:
• Press <Alt> + <F2> during POST to display the following.
• Enter the BIOS setup program. Go to the
Tools menu to select EZ Flash
2
and press <Enter> to enable it.
ASUSTek EZ Flash 2 BIOS ROM Utility V4.14
Current ROM
Update ROM
A:
Note
[Enter] Select or Load [Tab] Switch [V] Drive Info
[Up/Down/Home/End] Move [B] Backup [Esc] Exit
PATH: A:\
BOARD: Crosshair IV Formula
VER: 0215
DATE: 02/23/2010
BOARD: Unknown
VER: Unknown
DATE: Unknown
2. Press <Tab> to switch between drives until the correct BIOS file is
found. When found, EZ Flash 2 performs the BIOS update process and
automatically reboots the system when done.
• This function can support devices such as a USB flash disk with FAT 32/16
format and single partition only.
• DO 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 Setup Defaults
item under the
Exit
menu. See
section 3.9 Exit Menu for details.