Asus ROG STRIX B250F GAMING STRIX B250F GAMING BIOS ManualEnglish
Asus ROG STRIX B250F GAMING Manual
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- Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 1
update. 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 B250FG.CAP for this motherboard. ASUS STRIX B250F GAMING - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 2
setting, try to clear the CMOS and reset the motherboard to the default value. • The BIOS setup program does not support the Bluetooth devices. Please visit ASUS website for the detailed BIOS content manual. BIOS menu screen The BIOS Setup program can be used under two modes: EZ Mode and Advanced - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 3
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. Displays the CPU/motherboard temperature, CPU voltage output, CPU depending on the devices you installed to the system. ASUS STRIX B250F GAMING 3 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 4
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 settings Go back to EZ Mode Search on the FAQ Displays the CPU temperature, CPU, and memory voltage output 4 BIOS Setup - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 5
changing the overclocking settings BIOS screen. My Favorites(F3) This button above the menu bar shows all BIOS items in a Tree Map setup. Select frequentlyused BIOS manually tweak the fans to your desired settings. Refer to section 1.2.3 QFan Control for more information. ASUS STRIX B250F GAMING 5 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 6
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 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 7
1.2.3 QFan Control The QFan Control allows you to set a fan profile or manually configure the operating speed of your CPU and chassis fans. Click to select a fan to be configured Click to the changes Click to go back to main menu Select to manually configure your fans ASUS STRIX B250F GAMING 7 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 8
configure your fans' operating speed. Speed points To configure your fans: Select to manually configure your fans 1. Select the fan that you want to configure and to view its current status. 2. Click and drag the speed points to adjust - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 9
My Favorites My Favorites is your personal space where you can easily save and access your favorite BIOS items. My Favorites comes with several performance, power saving, and fast boot related items by default. You can personalize this screen by adding or removing items. ASUS STRIX B250F GAMING 9 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 10
items: 1. Press on your keyboard or click Setup Tree Map screen. from the BIOS screen to open 2. On the Setup Tree Map screen, select the BIOS items that you want to save in My Favorites screen. Main menu panel Selected shortcut items Submenu panel Delete all favorite items Recover to - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 11
Ratio Limit [Auto] Select [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 2-Core Limit value that must be higher than or equal to the 3-Core Ratio Limit. If you assign a value for 2-Core Ratio Limit, do not set the 1-Core Ratio Limit to [Auto]. ASUS STRIX B250F GAMING 11 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 12
Instruction Core Ratio Negative Offset Enter the numerical value that will be subtracted from your core ratio to get the ratio at which the AVX applications run. This item only displays when you install Intel Auto] [DDR4-800MHz] - [DDR4-4266MHz] CPU SVID Support [Auto] Disabling SVID Support BIOS Setup - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 13
: [Disabled] [Enabled] CPU Power Duty Control [T.Probe] DIGI + VRM Duty control adjusts the current and thermal conditions of every component's phase. [T. Probe] Select to maintain the VRM thermal balance. [Extreme] Select to maintain the current VRM balance. ASUS STRIX B250F GAMING 13 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 14
[130%] [140%] Choose a higher value when overclocking, or under a high GT loading for extra power support. CPU Graphics VRM Switching Frequency [Auto] This item affects the CPU Graphics transient response speed and the component thermal production. Select [Manual] to configure a higher frequency for - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 15
the and keys to adjust the value. Configuration options: [Auto] [8] - [83] Max. CPU Graphics Ratio [Auto] This item allows you to set the maximum possible CPU graphics ratio. Use the and keys to adjust the value. Configuration options: [Auto] [8] - [83] ASUS STRIX B250F GAMING 15 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 16
CPU Graphics Voltage Offset [Auto] This item allows you to configure the CPU 001V interval. CPU VCCIO Voltage [Auto] This item allows you to set the voltage for the CPU VCCIO. CPU Graphics Voltage Mode to [Manual Mode]. CPU Graphics Voltage Override [Auto] This item allows you to configure the CPU - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 17
The Advanced menu items allow you to change the settings for the CPU and other system devices. Be cautious when changing the settings of (active state power management) support for devices. [Disabled] BIOS controls the ASPM support for the device. PCH - [L0sL1] [Auto] ASUS STRIX B250F GAMING 17 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 18
Configuration The items in this menu show the CPU-related information that the BIOS automatically detects. The items shown in submenu may be different due to the CPU you installed. Hyper-threading [Enabled] The Intel Hyper-Threading Technology allows a hyper-threading processor to appear as two - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 19
CPU's power. Intel(R) SpeedStep(tm) [Auto] This item allows your system to support more than two frequency ranges. Configuration options: [Auto] [Disabled] [Enabled] CPU devices when the system supports the 64-bit PCI decoding. Configuration options: [Enabled] [Disabled] ASUS STRIX B250F GAMING 19 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 20
and discrete graphics devices for the multi-monitor output. The CPU graphics shared system memory size is fixed at 64 MB. Standby) [Enabled] Allows you to enable or disable render standby support. Configuration options: [Disabled] [Enabled] DVMT Pre-Allocated [64M] ] [Gen1] [Gen2] 20 BIOS Setup - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 21
While entering Setup, the BIOS automatically detects the presence Support. Configuration options: [Disabled] [Enabled] PCH-FW Configuration TPM Device Selection [Discrete TPM] This item allows you to select the TPM device. Configuration options: [Discrete TPM] [Firmware TPM] ASUS STRIX B250F GAMING - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 22
Disabled] RGB LED Intel LAN controller. [Disabled] Disables the controller. Intel PXE Option ROM [Off] This item appears only when you set the previous item to [On] and allows you to enable or disable the PXE OptionRom of the Intel LAN controller. Configuration options: [On] [Off] 22 BIOS - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 23
=2F8h; IRQ=3] [IO=3E8h; IRQ=4] [IO=2E8h; IRQ=3] APM Configuration ErP Ready [Disabled] Allows BIOS to switch off some power at S5 to get the system ready for ErP requirement. When set to [ enable the UEFI network stack. Configuration options: [Disabled] [Enabled] ASUS STRIX B250F GAMING 23 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 24
values. If no USB device is detected, the item shows None. Legacy USB Support [Enabled] [Enabled] Your system supports the USB devices in legacy operating systems. [Disabled] Your USB devices can be used for BIOS setup only and cannot be recognized in the boot devices list. [Auto] Your - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 25
mode for 3-pin CPU fan. CPU Fan Speed Lower Limit [200 RPM] This item appears only when you enable the CPU Q-Fan Control feature and allows you to disable or set the CPU fan warning speed. Configuration options: [Ignore] [200RPM] [300 RPM] [400 RPM] [500 RPM] [600RPM] ASUS STRIX B250F GAMING 25 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 26
] to achieve maximum CPU fan speed. [Manual] Sets to [Manual] to assign detailed fan speed control parameters. The following items appear only when you set CPU Fan Profile to [Manual]. CPU Upper Temperature [70] chassis fan. [Disabled] Disables the chassis Q-Fan control feature. 26 BIOS Setup - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 27
CPU] This item controls the assigned fan according to the selected temperature source. Configuration options: [CPU] [Motherboard fan speed. [Manual] Sets to [Manual] to assign CPU temperature is under the lower limit, the chassis fan operates at the minimum duty cycle. ASUS STRIX B250F GAMING 27 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 28
according to the selected temperature source. Configuration options: [CPU] [MotherBoard] [VRM] [PCH] [T_Sensor] [EXT_Sensor1] [ to [Turbo] to achieve maximum extension fan speed. [Manual] Sets to [Manual] to assign detailed fan speed control parameters. The following to 75°C. 28 BIOS Setup - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 29
keys to adjust the minimum extension fan duty cycle. The values range from 60% to 100%. When the CPU temperature is under the lower limit, the extension fan operates at the minimum duty cycle. Allow Fan Stop [Disabled] AIO pump fan operates at the minimum duty cycle. ASUS STRIX B250F GAMING 29 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 30
set Boot Logo Display to [Auto] and [Full Screen]. This item allows you to select the desired additional POST waiting time to easily enter the BIOS setup. You can only execute the POST delay time during Normal Boot. The values range from 0 to 10 seconds. This feature will only work under - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 31
want to launch. Configuration options: [Ignore] [Legacy only] [UEFI driver first] Boot from PCI-E Expansion Devices [Legacy Only] Allows you to select the type of PCI-E expansion devices that you want to launch. Configuration options: [Legacy only] [UEFI driver first] ASUS STRIX B250F GAMING 31 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 32
Other OS] Get the optimized function when booting on Windows® non-UEFI mode. Microsoft® Secure Boot only supports Windows® UEFI mode. Key Management This allows you to manage the Secure Boot keys. Clear Secure Boot Allows you to load the downloaded KEK from a USB storage device. 32 BIOS Setup - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 33
Authorized Signature database) lists the signers or images of UEFI applications, operating system loaders, and UEFI drivers that you can load on the single computer. Save to File Allows you to save the downloaded during system startup, press when ASUS Logo appears. ASUS STRIX B250F GAMING 33 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 34
[No], then press to confirm your choice. For more details, refer to section 1.11.2 ASUS EZ Flash 3. 1.9.2 Secure Erase SSD speeds may lower over time as with any storage medium due to data off the system during the process. • Secure Erase is only supported on Intel SATA port. 34 BIOS Setup - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 35
and BIOS version. Profile Name This item allows you to key in a profile name. Save to Profile This item allows you to save the current BIOS settings to the BIOS Flash, and create a profile. Key in a profile number from one to eight, press , and then select Yes. ASUS STRIX B250F GAMING 35 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 36
and recommended configuration for the PCIE slots that the graphics card is installed in your system. This feature is only supported on selected ASUS graphics cards. Bus Interface This item allows you to select the bus interface. Configuration options: [PCIEX16_1] [PCIEX16_2] 1.10 Exit menu - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 37
that allows you to update the motherboard BIOS in Windows® environment. • EZ Update requires an Internet connection either through a network or an ISP (Internet Service Provider). • This utility is available in the support DVD that comes with the motherboard package. ASUS STRIX B250F GAMING 37 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 38
varies per region and Internet conditions. Check your local Internet connection before updating through the Internet. To update the BIOS by USB: 1. Enter the Advanced Mode of the BIOS setup program. Go to the Tool menu to select ASUS EZ Flash Utility and press . 2. Insert the USB flash disk - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 39
to complete the update. 5. Reboot the system when the update process is done. 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 1.10 Exit Menu for details. ASUS STRIX B250F GAMING 39 - Asus ROG STRIX B250F GAMING | STRIX B250F GAMING BIOS ManualEnglish - Page 40
or gets corrupted during the updating process. You can restore a corrupted BIOS file using the motherboard support DVD or a USB flash drive that contains the BIOS file. The BIOS file in the motherboard support DVD may be older than the BIOS file published on the ASUS official website. If you want
ASUS STRIX B250F GAMING
1
BIOS Setup
1.1
Knowing 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.
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
B250FG.CAP
for this
motherboard.
Chapter 3:
BIOS Setup