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BIOS setup
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3.1 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 trai\
ned service personnel.
When downloading or updating the BIOS file, rename it as M7H.CAP for this motherboard.
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•  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 . See section 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 Onboard buttons for more information on how to erase the RTC RAM via the Clear CMOS button.
•  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 the Exit menu or from the Exit/Advanced Mode screen.
3.2  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  during the Power-On Self Test (POST). If you do not press , POST continues with its routines.
Entering BIOS Setup after POST
To enter BIOS Setup after POST:
•  Press ++ 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.
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3.2.1 EZ Mode
The EZ Mode provides you an overview of the basic system information, and allows you to select the display language, system performance, mode and boot device priority. To access the Advanced Mode, click Exit/Advanced Mode, then select Advanced Mode or press  hot key 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.
The boot device options vary depending on the devices you installed to the system.
Selects the display language of the BIOS setup programDisplays the CPU/motherboard temperature, CPU voltage output, CPU/chassis/power fan speed, and SATA
Displays the system properties of the selected mode. Click < or > to switch EZ System Tuning modes
Creates storage RAID and configures system overclocking
Saves the changes and resets the system
Click to display  boot devicesSelects the boot device priorityLoads optimized default settings
Click to go to Advanced modeDisplays the CPU Fan\222s speed. Click the button to manually tune the fans
Enables or disables the Intel Rapid Storage Technology
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3.2.2 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.
To switch from EZ Mode to Advanced Mode, click Advanced Mode\(F7\) or press F7 hotkey.
Menu itemsGeneral helpSub-menu item
Menu bar
Last modified settingsGoes back to EZ ModeDisplays the CPU temperature,  CPU, and memory voltage output
LanguageHot KeysQfan Control\(F6\)MyFavorite\(F3\)
Quick Note \(F9\)
EZ Tuning Wizard\(F11\)Scroll barPop-up Menu Configuration fields
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Menu bar
The menu bar on top of the screen has the following main items:
My FavoritesFor saving the frequently-used system settings and configuration.
Extreme TFor changing the overclocking settings
MainFor changing the basic system configuration
AdvancedFor changing the advanced system settings
MonitorFor displaying the system temperature, power status, and changing the fan settings.
BootFor changing the system boot configuration
ToolFor configuring options for special functions
ExitFor 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, Extreme 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 .
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.
MyFavorite\(F3\)
This button above the menu bar shows all BIOS items in a Tree Map setup. Select frequently-used BIOS settings and save it to MyFavorite menu.
Refer to section My Favorites for more information.
Qfan 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.
EZ Tuning Wizard\(F11\)
This button above the menu bar allows you to view and tweak the overclocking settings of your system. It also allows you to change the motherboard’s SATA mode from AHCI to RAID mode.
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Quick Note \(F9\)
This button above the menu bar allows you to key in notes of the activities that you have done in BIOS.
•  The quick Note function does not support the following keyboard functions: delete, cut, copy and paste.
•  You can only use the alphanumeric characters to enter your notes.
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  /  keys to display the other items on the screen.
General help
At the top right corner of the menu screen is a brief description of the selected item. Use  key 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  to display a list of options.
Last Modified button
This button shows the items that you last modified and saved in BIOS Setup.
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3.3 My Favorites
My Favorites is your personal space where you can easily save and access your favorite BIOS items.
Adding items to My Favorites
To add frequently-used BIOS items to My Favorites:
1. Press  on your keyboard or click  to open Setup Tree Map screen.
2. On the Setup Tree Map screen, select the BIOS items that you want to save in My Favorites screen then click the plus sign (“+”) to save it in My Favorites screen.
You cannot add the following items to My Favorite items:
• Items with submenu options
• User-managed items such as language and boot order
• Configuration items such as Memory SPD Information, system time and date.
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3.4 Extreme T
The Extreme Tweaker menu items allow you to configure overclocking-related items.
Be cautious when changing the settings of the Extreme Tweaker menu items. Incorrect field values can cause the system to malfunction
The configuration options for this section vary depending on the CPU and DIMM model you installed on the motherboard.
Scroll down to display other BIOS items.
Ai Overclock Tuner [Auto]
Allows you to select the CPU overclocking options to achieve the desired CPU internal frequency. Configuration options:
[Auto]  Loads the optimal settings for the system.
[Manual] Allows you to individually set overclocking parameters.
[X.M.P.] If you install memory modules supporting the eXtreme Memory Profile (X.M.P.) Technology, choose this item to set the profiles supported by your memory modules for optimizing the system performance.
The [X.M.P.] configuration option appears only when you install memory modules supporting the eXtreme Memory Profile(X.M.P.) Technology.
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When the Ai Overclock Tuner is set to [Manual] or [XMP], the following items appear. 
Filter PLL [Auto]
Set this item to high BCLK (base clock) mode when using a very high BCLK to improve overclocking capability. Configuration options: [Auto] [Low BCLK mode] [High BCLK mode]
BCLK Frequency [100]
This item allows you to set the BCLK (base clock) frequency to enhance the system performance. Use the  or  to adjust the value. The values range from 80.0 MHz to 300.0 MHz.
When Ai Overclock Tuner is set to [XMP], the XMP mode supported by the installed memory module is displayed.
ASUS MultiCore Enhancement [Auto]
[Auto] This item allows you to maximize the oveclocking performance optimized by ASUS core ratio settings.
[Disabled] This item allows you to set to default core ratio settings.
CPU Core Ratio [Sync All Cores]
This item allows you to set the CPU core ratio limit per core or synchronize automatically to all cores.
Configuration options: [Auto] [Sync All Cores] [Per Core]
When the CPU Core Ratio is set to [Synch All Cores], the following item appears:
1-Core Ratio Limit [Auto]Select [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 1-Core Limit value that must be higher than or equal to the 2-Core Ratio Limit.
When the CPU Core Ratio is set to [Per Core], the following item appears:
1-Core Ratio Limit [Auto]Select [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 1-Core Limit value that must be higher than or equal to the 2-Core Ratio Limit.
2-Core 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.
3-Core Ratio Limit [Auto]Select [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 3-Core Limit value that must be higher than or equal to the 4-Core Ratio Limit.
4-Core Ratio Limit [Auto]Select [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 4-Core Limit value that must be higher than or equal to the 3-Core Ratio Limit.
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If you assign a value for more Core Ratio Limit, do not set the less Core Ratio Limit to [Auto].
Min. CPU Cache Ratio [Auto]
Allows you to set the minimum possible ratio on the Uncore part of the processor. Use the  or  keys to adjust the value. The values depend on the CPU installed.
Max. CPU Cache Ratio [Auto]
Allows you to set the maximum possible ratio on the Uncore part of the processor. Use the  or  keys to adjust the value. The values depend on the CPU installed.
Internal PLL Overvoltage [Auto]
This item allows you to enable the internal PLL Overvoltage for K-SKU CPUs to get the extreme overclocking capability.
Configuration options: [Auto] [Enabled] [Disabled]
CPU Ratio Tuner [Auto]
Enable this item to enhance the performance of non-K series CPUs. Configuration options: [Auto] [Enabled] [Disabled]
BCLK Frequency : DRAM Frequency Ratio [Auto]
Allows you to set the BCLK frequency to DRAM frequency ratio.
[Auto] The BCLK frequency to DRAM frequency is set to the optimized settings.
[100:133] The BCLK frequency to DRAM frequency ratio is set to 100:133. 
[100:100] The BCLK frequency to DRAM frequency ratio is set to 100:100. 
DRAM Frequency [Auto]
This item allows you to set the memory operating frequency. The configurable options vary with the BCLK (base clock) frequency setting. Select the auto mode to apply the optimized setting.
Configuration options: [DDR3-800MHz] [DDR3-1066MHz] [DDR3-1333MHz] [DDR3-1400MHz] [DDR3-1600MHz] [DDR3-1800MHz] [DDR3-1866MHz] [DDR3-2000MHz] [DDR3-2133MHz] [DDR3-2200MHz] [DDR3-2400MHz] [DDR3-2600MHz] [DDR3-2666MHz] [DDR3-2800MHz] [DDR3-2933MHz] [DDR3-3000MHz] [DDR3-3200MHz] [DDR3-3400MHz]
Xtreme T
This item may help improve some benchmarks performance. Configuration options: [Enabled] [Disabled]
Max. CPU Graphics Ratio [Auto]
Allows you to automatically optimize the CPU Graphics Ratio or manually set a value for an optimal CPU Graphics Ratio. Use the  or  keys to adjust the CPU graphics ratio. The minimum value depends on the installed CPU.
The ratio may vary depending on the system loading. 
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