ASUS UEFI BIOS

ASUS UEFI BIOS

The new ASUS UEFI BIOS is a Unified Extensible Interface that complies with UEFI architecture, offering a user-friendly interface that goes beyond the traditional keyboard-only BIOS controls to enable a more flexible and convenient mouse input. You can easily navigate the new UEFI BIOS with the same smoothness as your 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 optimal performance. DO 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.

Remarks

Inappropriate BIOS settings may result to instability or boot failure. We strongly recommend that you change the BIOS settings only with the help of a trained service personnel.
When downloading or updating the BIOS file, rename it as XXXXXX.CAP for the corresponding motherboard.

BIOS setup program

Use the BIOS Setup to update the BIOS or configure its parameters. The BIOS screen include navigation keys and brief onscreen help to guide you in using the BIOS Setup program.

Entering BIOS at startup

To enter BIOS Setup at startup, press Delete or F2 during the Power-On Self Test (POST). If you do not press Delete or F2, POST continues with its routines.

Entering BIOS Setup after POST

To enter BIOS Setup after POST:

• Press Ctrl+Alt+Delete simultaneously.
• Press the reset button on the system chassis.
• Press the power button to turn the system off then back on. Do this option only if you failed to enter BIOS Setup using the first two options.

After doing either of the three options, press Delete key to enter BIOS.

Remarks

• 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 or press hotkey F5 . See section 1.10 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.
• The BIOS setup program does not support the Bluetooth devices.

BIOS menu screen

The BIOS Setup program can be used under two modes: EZ Mode and Advanced Mode. . You can change modes from Setup Mode in Boot menu or by pressing the F7 hotkey. To access the Advanced Mode, select Advanced Mode or press the F7 hotkey for the advanced BIOS settings.The default screen for entering the BIOS setup program can be changed. Refer to the Setup Mode item in section Boot menu for details.

Remarks

The boot device options vary depending on the devices you installed to the system.

EZ Mode

The EZ Mode provides an overview of the basic system information, and some fundamental configurable system settings, select the display language, system date and time, and boot device priority etc.

EZ Mode Screen

The EZ Mode Screen is divided into three parts, top bar, main screen, bottom bar.

Top Bar

The shortcuts of the top bar are

Main Screen

The items of the main screen are

Information DRAM Status X.M.P. CPU Temperature CPU Core Voltage Motherboard Temperature Storage Information AI Overclocking Boot Priority FAN Profile CPU FAN

Bottom Bar

The shortcuts of the main screen are

Default (F5)click to reset to default Save & Exit (F10)click to save and exit Advanced Mode (F7)click to switch to advanced mode

 

Advanced Mode

The Advanced Mode provides advanced options for experienced end-users to configure the BIOS settings. The figure below shows an example of the Advanced Mode. Refer to the following sections for the detailed configurations.

Remarks

To switch from EZ Mode to Advanced Mode, click Advanced Mode(F7) or press the F7 hotkey.

Menu bar

The menu bar on top of the screen has the following main items: My Favorites For saving the frequently-used system settings and configuration. Main For changing the basic system configuration Ai Tweaker For changing the overclocking settings Advanced For changing the advanced system settings Monitor For displaying the system temperature, power status, and changing the fan settings. Boot For changing the system boot configuration Tool For configuring options for special functions Exit For selecting the exit options and loading default settings

Menu items

The highlighted item on the menu bar displays the specific items for that menu. For example, selecting Main shows the Main menu items. The other items (My Favorites, Ai Tweaker, Advanced, Monitor, Boot, Tool, and Exit) on the menu bar have their respective menu items.

Submenu items

A greater than sign (>) before each item on any menu screen means that the item has a submenu. To display the submenu, select the item and press Enter

Language

This button above the menu bar contains the languages that you can select for your BIOS. Click this button to select the language that you want to display in your BIOS screen.

My Favorites(F3)

This button above the menu bar shows all BIOS items in a Tree Map setup. Select frequently- used BIOS settings and save it to MyFavorites menu. Refer to section 1.3 My Favorites for more information.

Q-Fan Control(F6)

This button above the menu bar displays the current settings of your fans. Use this button to manually tweak the fans to your desired settings. Refer to section 1.2.3 QFan Control for more information. 6 BIOS Setup

Search on FAQ

Move your mouse over this button to show a QR code, scan this QR code on your mobile device to connect to the BIOS FAQ web page of the ASUS support website. You can also scan the following QR code:

Hot keys

This button above the menu bar contains the navigation keys for the BIOS setup program. Use the navigation keys to select items in the menu and change the settings.

Scroll bar

A scroll bar appears on the right side of a menu screen when there are items that do not fit on the screen. Press the Up/Down arrow keys or Page Up / Page Down keys to display the other items on the screen.

General help

At the bottom of the menu screen is a brief description of the selected item. Use F12key to capture the BIOS screen and save it to the removable storage device.

Configuration fields

These fields show the values for the menu items. If an item is user-configurable, you can change the value of the field opposite the item. You cannot select an item that is not user-configurable. A configurable field is highlighted when selected. To change the value of a field, select it and press Enter to display a list of options.

Last Modified button

This button shows the items that you last modified and saved in BIOS Setup.

Sources and References

• https://dlcdnets.asus.com/pub/ASUS/mb/LGA1151/STRIX_B250F_GAMING/E12497_STRIX_B250F-GAMING_BIOS_UM_web_only_20170706.pdf
• https://dlcdnets.asus.com/pub/ASUS/mb/LGA1151/ROG_STRIX_Z390-I_GAMING/E14477_ROG_STRIX_Z390-I_GAMING_UM_WEB.pdf