ASUS SABERTOOTH 990FX
3-1
Chapter 3
3.1
Knowing BIOS
The new ASUS UEFI BIOS is an Extensible Firmware Interface that complies with uEFI
architecture, offering a user-friendly interface that goes beyond traditional keyboard-only
BIOS controls to enable more flexible and convenient mouse input. Users can easily
navigate the new UEFI BIOS with the same smoothness as their operating system. The
term “BIOS” in this user manual refers to “UEFI BIOS” unless otherwise specified.
BIOS (Basic Input and Output System) stores system hardware settings such as storage
device configuration, overclocking settings, advanced power management, and boot device
configuration that are needed for system startup in the motherboard CMOS. In normal
circumstances, the default BIOS settings apply to most conditions to ensure optimum
performance. We recommend that you not change the default BIOS settings except in the
following circumstances:
• An error message appears on the screen during the system bootup and requests you to
run the BIOS Setup.
• You have installed a new system component that requires further BIOS settings or
update.
Inappropriate settings of the BIOS may result to instability or failure to boot.
We strongly
recommend that you change the BIOS settings only with the help of a trained service
personnel
.
Chapter 3:
BIOS setup
Chapter 3
3.2
BIOS setup program
A BIOS setup program is provided for BIOS item modification. When you start up the
computer, the system provides you with the opportunity to run this program. Press <Del>
during the Power-On Self-Test (POST) to enter the Setup utility. Otherwise, POST continues
with its test routines.
If you wish to enter Setup after POST, press <Ctrl> + <Alt> + <Delete>, or press the reset
button on the system chassis to restart the system. You can also turn the system off and then
turn it back on to restart the system. Do this last option only if the first two failed.
•
The BIOS setup screens shown in this section are for reference purposes only, and
may not exactly match what you see on your screen.
•
Ensure that a USB mouse is connected to your motherboard if you want to use the
mouse to control the BIOS setup program.
•
If the system becomes unstable after changing any BIOS setting, load the 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.
•
If the system fails to boot after changing any BIOS setting, try to clear the CMOS and
reset the motherboard to the default value. See section
See section
2.2.5 Jumper
for information
on how to erase the RTC RAM.
•
The BIOS setup program does not support the bluetooth devices.
The BIOS setup program is designed to make it as easy to use as possible. Being a
menu-driven program, it lets you scroll through the various submenus and select from the
available options using a keyboard or a USB mouse.
The BIOS setup program can be used under two modes:
EZ Mode
and
Advanced Mode
.
You can change modes from the
Exit
menu or from the
Exit/Advanced Mode
button in the
EZ Mode
/
Advanced Mode
screen.
Summary of Contents for SABERTOOTH 990FX
Page 1: ...Motherboard SABERTOOTH 990FX ...
Page 51: ...ASUS SABERTOOTH 990FX 2 33 Chapter 2 3 4 5 ...
Page 54: ...2 36 Chapter 2 Hardware information Chapter 2 2 3 6 ATX Power connection 1 2 OR OR ...
Page 55: ...ASUS SABERTOOTH 990FX 2 37 Chapter 2 2 3 7 SATA device connection OR 2 OR 1 ...
Page 138: ...4 38 Chapter 4 Software support Chapter 4 ...
Page 146: ...5 8 Chapter 5 Multiple GPU technology support Chapter 5 ...
