ASUS Z87-K Motherboard User Manual

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2.5 Ai Tweaker menu
The Ai Tweaker menu items allow you to configure overclocking-related items. Be cautious when changing the settings of the Ai 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 the following items:

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Scroll down to display the following items:

Target CPU Turbo-Mode Speed : xxxxMHz Displays the target CPU Turbo-Mode speed.

Target DRAM Speed : xxxxMHz Displays the target DRAM speed.

Target Cache Speed : xxxxMHz Displays the target Cache speed.

Target DMI/PEG Clock : xxxxMHz Displays the target DMI/PEG clock.

Target iGPU Speed : xxxxMHz Displays the target iGPU speed.

2.5.1 Ai Overclock Tuner [Auto]

Allows you to select the CPU overclocking options to achieve the desired CPU internal frequency. Select any of these preset overclocking configuration options:

[Auto]

Loads the optimal settings for the system.

[Manual]

Allows you to automatically optimize the CPU ratio and BCLK frequency.

[X.M.P.]

Allows your system to automatically optimize the CPU ratio, BCLK frequency, and memory parameters. If you install memory modules
supporting the eXtreme Memory Profile (X.M.P.) Technology, select this item to set the profiles supported by your memory modules for optimizing the system performance.

2.5.2 ASUS MultiCore Enhancement [Enabled] [Enabled] [Disabled]

Default set to [Enabled] for maximum performance under XMP/Manual/ User- defined memory frequency mode. Allows you to set to default core ratio settings.

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2.5.3 CPU Core Ratio [Auto]

Allows you to set the CPU core ratio automatically or manually.

[Auto]

Sets all CPU Core Ratio to Intel® CPU default settings automatically.

[Sync All Cores] Allows you to set CPU Core Ratio settings for all cores. [Per Core]

Allows you to set CPU Core Ratio individually.

The following two items appear only when you set the CPU Core Ratio to [Sync All Cores] or [Per Core].
1-Core Ratio Limit [Auto] Allows you to set the 1-Core Ratio Limit. Select [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 1-Core Ratio Limit value that is higher than or equal to the 2-Core Ratio Limit. 2-Core Ratio Limit [Auto] This item becomes configurable only when you set CPU Core Ratio to [Per Core] and allows you to set the 2-Core Ratio Limit. Select [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 2-Core Ratio Limit value that is higher than or equal to the 3-Core Ratio Limit. 1-Core Limit must not be set to [Auto]. 3-Core Ratio Limit [Auto] This item becomes configurable only when you set CPU Core Ratio to [Per Core] and allows you to set the 3-Core Ratio Limit. Select [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 3-Core Ratio Limit value that is higher than or equal to the 4-Core Ratio Limit. 1-Core/2-Core Ratio Limit must not be set to [Auto]. 4-Core Ratio Limit [Auto] This item becomes configurable only when you set CPU Core Ratio to [Per Core] and allows you to set the 4 Core Ratio Limit. Select [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 4-Core Ratio Limit value that is higher than or equal to the 3-Core Ratio Limit. 1-Core/2-Core/3-Core Limit must not be set to [Auto].
2.5.4 Min CPU Cache Ratio [Auto] Allows you to set the uncore ratio of the processor to its possible minimum value. Configuration options: [Auto] [1] ~ [30].
2.5.5 Max CPU Cache Ratio [Auto] Allows you to set the uncore ratio of the processor to its possible maximum value. Configuration options: [Auto] [1] ~ [30].
2.5.6 Internal PLL Overvoltage [Auto] Allows you to enable the internal PLL Overvoltage for K-SKU CPUs to get the extreme overclocking capability. Configuration options: [Auto] [Enabled] [Disabled] 2.5.7 CPU bus speed : DRAM speed ratio mode [Auto] Allows you to set the CPU bus speed to DRAM speed ratio mode.

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[Auto] [100:133] [100:100]

DRAM speed is set to the optimized settings. The CPU bus speed to DRAM speed ratio is set to 100:133. The CPU bus speed to DRAM speed ratio is set to 100:100.

2.5.8 Memory Frequency [Auto]

Allows you to set the memory operating frequency. The configuration options vary with the BCLK/PEG Frequency item settings.

Selecting a very high memory frequency may cause the system to become unstable! If this happens, revert to the default setting.

2.5.9 CPU Graphics Max. Ratio [Auto] [Auto] [Manaul]

The CPU Graphics Max. ratio is set to its optimized setting depending on the system loading.
Use the <+> or <-> keys to adjust the optimal CPU Graphics Max. ratio. The value may vary depending on the system loading.

2.5.10 OC Tuner [As is]

OC Tuner automatically overclocks the frequency and voltage of CPU and DRAM for
enhancing the system performance and accelerates iGPU performance to the extreme
according to the integrated graphics loading. Configuration options: [As is] [Ratio Only] [BCLK First].

2.5.11 EPU Power Saving Mode [Disabled]

Allows you to enable or disable the EPU power saving function. Configuration options: [Disabled] [Enabled]

2.5.12 DRAM Timing Control

The subitems in this menu allow you to set the DRAM timing control features. Use the <+> and <-> keys to adjust the value. To restore the default setting, type [auto] using the keyboard and press the key.

Changing the values in this menu may cause the system to become unstable! If this happens, revert to the default settings.
Primary Timings
DRAM CAS# Latency [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [31 DRAM Clock] DRAM RAS# to CAS# Delay [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [31 DRAM Clock] DRAM RAS# PRE Time [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [31 DRAM Clock]

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DRAM RAS# ACT Time [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [63 DRAM Clock] DRAM COMMAND Rate [Auto] Configuration options: [Auto] [1 DRAM Clock] [2 DRAM Clock] [3 DRAM Clock] Secondary Timings
DRAM RAS# to RAS# Delay [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [15 DRAM Clock] DRAM REF Cycle Time [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [511 DRAM Clock] DRAM Refresh Interval [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [65535 DRAM Clock] DRAM WRITE Recovery Time [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [16 DRAM Clock] DRAM READ to PRE Time [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [15 DRAM Clock] DRAM FOUR ACT WIN Time [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [255 DRAM Clock] DRAM WRITE to READ Delay [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [15 DRAM Clock] DRAM CKE Minimum pulse width [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [15 DRAM Clock] DRAM CAS# Write Latency [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [31 DRAM Clock] RTL IOL control
DRAM RTL initial Value [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [63 DRAM Clock] DRAM RTL (CHA) [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [63 DRAM Clock] DRAM RTL (CHB) [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [63 DRAM Clock] DRAM I0-L (CHA) [Auto] Configuration options: [Auto] [Delay 1 Clock] – [Delay 15 Clock] DRAM IO-L (CHB) [Auto] Configuration options: [Auto] [Delay 1 Clock] – [Delay 15 Clock] Third Timings
tRDRD [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [7 DRAM Clock] tRDRD_dr [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [15 DRAM Clock]

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tRDRD_dd [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [15 DRAM Clock] tWRRD [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [63 DRAM Clock] tWRRD_dr [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [15 DRAM Clock] tWRRD_dd [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [15 DRAM Clock] tWRWR [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [7 DRAM Clock] tWRWR_dr [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [15 DRAM Clock] tWRWR_dd [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [15 DRAM Clock] Dec_WRD [Auto] Configuration options: [Auto] [0] [1] tRDWR [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [31 DRAM Clock] tRDWR_dr [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [31 DRAM Clock] tRDWR_dd [Auto] Configuration options: [Auto] [1 DRAM Clock] ­ [31 DRAM Clock]

MISC

MRC Fast Boot [Enabled]

Allows you to enable or disable the MRC fast boot.

[Enabled]

Enables the MRC fast boot.

[Disable]

Disables the MRC fast boot.

DRAM CLK Period [Auto] Configuration options: [Auto] [1] ­ [14] Channel A DIMM Control [Enable Bot…] Configuration options: [Enable Both DIMMS] [Disable DIMM0] [Disable DIMM1] [Disable Both DIMMS] Channel B DIMM Control [Enable Bot…] Configuration options: [Enable Both DIMMS] [Disable DIMM0] [Disable DIMM1] [Disable Both DIMMS] Scrambler Setting [Optimized …] Configuration options: [Optimized (ASUS)] [Default (MRC)]

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2.5.13 DIGI+ VRM
CPU Load-Line Calibration [Auto] Load-line is defined by Intel VRM specification and affects CPU voltage. The CPU working voltage will decrease proportionally to CPU loading. Higher value gets a higher voltage and better overclocking performance, but increases the CPU and VRM thermal conditions. This item allows you to adjust the voltage range from the following percentages to boost the system performance: 0% (Regular), 25% (Medium), 50% (High), 75% (Ultra High), and 100% (Extreme). Configuration options: [Auto] [Regular] [Medium] [High] [Ultra High] [Extreme] The actual performance boost may vary depending on your CPU specification.
CPU Fixed Frequency [XXX] This item allows you to set a fixed CPU frequency. Use the <+> or <-> keys to adjust the value. The values range from 200kHz to 350kHz with a 50kHz interval. CPU Power Phase Control [Auto] Allows you to set the power phase based on the CPU. Configuration options: [Auto] [Standard] [Optimized] [Extreme] [Manual Adjustment] DO NOT remove the thermal module when setting this item to [Extreme] and [Manual Adjustment]. The thermal conditions should be monitored.

This following item appears only when you set the CPU Power Phase Control item to [Manual Adjustment].

Manual Adjustment [Fast]

Allows you to set a response for the CPU power phase control. Configuration options: [Ultra Fast] [Fast] [Medium] [Regular]

CPU Power Duty Control [T.Probe]

DIGI + VRM Duty Control adjusts the current of every VRM phase and the thermal conditions of every component.

[T. Probe]

Select to maintain the VRM thermal balance.

[Extreme]

Select to maintain the current VRM balance.

CPU Current Capability [Auto] Allows you to configure the total power range, and extends the overclocking frequency range simultaneously. Configuration options: [Auto] [100%] [110%] [120%] [130%] [140%]

Choose a higher value when overclocking, or under a high CPU loading for extra power support.

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2.5.14 CPU Power Management

The subitems in this menu allow you to set the CPU ratio and features.

Enhanced Intel® SpeedStep Technology [Enabled]

Allows you to enable or disable the Enhanced Intel® SpeedStep Technology (EIST).

[Disabled]

Disables this function.

[Enabled]

The operating system dynamically adjusts the processor voltage and core frequency which may result in decreased average consumption and decreased average heat production.

Turbo Mode [Enabled] Allows you to enable your core processor’s speed to run faster than the marked frequency in a specific condition. Configuration options: [Disabled] [Enabled]

· Turbo Mode is only available on selected CPU models only.
· The following first three items appear only when you set the Turbo Mode to [Enabled].
Turbo Mode Parameters Long Duration Package Power Limit [Auto] Allows you to limit the turbo ratio’s long duration package power. Use the <+> and <-> keys to adjust the value. Package Power Time Window [Auto] Allows you to set the package power time window. Use the <+> and <-> keys to adjust the value. Short Duration Package Power Limit [Auto] Allows you to limit the turbo ratio’s long duration power. Use the <+> and <-> keys to adjust the value. CPU Integrated VR Current Limit [Auto] Allows you to limit the CPU Integrated VR current Use <+> and <-> key to adjust the value.
CPU Internal Power Switching Frequency Frequency Tuning Mode [Auto] Allows you to set the frequency tuning mode. Configuration options: [Auto] [+] [-] CPU Internal Power Fault Control Thermal Feedback [Auto] When enabled, it allows CPU to take precautionary actions when the thermal of the external regulator exceeds the limit.Configuration options: [Auto] [Disabled] [Enabled] CPU Integrated VR Fault Management [Auto] Allows you to manage the CPU Integrated VR fault. Configuration options: [Auto] [Disabled] [Enabled]

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CPU Internal Power Configuration
CPU Integrated VR Efficiency Management [Auto] Allows you to manage the CPU integrated VR efficiency. Configuration options: [Auto] [High Performance] [Balanced] Power Decay Mode [Auto] Enable to improve power saving on the Fully Integrated Voltage Regulator as the processor enters low current mode. Configuration options: [Auto] [Disabled] [Enabled] Idle Power-in Response [Auto] Allows you to set the idle power-in response. Configuration options: [Auto] [Regular] [Fast] Idle Power-out Response [Auto] Allows you to set the idle power-out response. Configuration options: [Auto] [Regular] [Fast] Power Current Slope [Auto] Allows you to set the power current slope. Configuration options: [Auto] [Level -4] ~ [Level 4].
Power Current Offset [Auto] Allows you to set the power current offset. Configuration options: [Auto] [100%] [87.5%] [75%] [62.5%] [50%] [37.5%] [25%] [12.5%] [0%] [-12.5%] [-25%] [-37.5%] [-50.0%] [-62.5%] [-75%] [-87.5%] [-100%] Power Fast Ramp Response [Auto] Allows you to increase to enhance the response of the voltage regulator during the load transient. Configurations: [Auto] [0.00] – [1.50]. CPU Internal Power Saving Control
Power Saving Level 1 Threshhold [Auto] Allows you to set the power saving level 1 threshhold.
Use the <+> and <-> keys to adjust the value.
Power Saving Level 2 Threshhold [Auto] Allows you to set the power saving level 2 threshhold.
Use the <+> and <-> keys to adjust the value.
Power Saving Level 3 Threshhold [Auto] Allows you to set the power saving level 3 threshhold.
Use the <+> and <-> keys to adjust the value.
2.5.15 Extreme OV [Disabled] By default, this item is set to [Disabled] and helps provide over voltage protection for the CPU. When you set this item to [Enabled], you can select voltage settings for overclocking, but this will not guarantee the CPU’s lifespan.
2.5.16 CPU Core Voltage [Auto] Allows you to configure the amount of voltage fed to the cores of the processor. Increase the amount of voltage when increasing core frequency. Configuration options: [Auto] [Manual Mode] [Offset Mode] [Adaptive Mode]

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[Adaptive Mode] is available for some specific CPU types.
CPU Core Voltage Override [Auto] This item appears only when you set the CPU Core Voltage to [Manual Mode] and allows you to set the CPU core voltage override. The values range from 0.001V to 1.920V with a 0.001V interval.
Offset Mode Sign [+] This item appears only when you set the CPU Core Voltage to [Offset Mode] or [Adaptive Mode] and allows you to set the offset mode sign. Configuration options: [+] [-] CPU Core Voltage Offset [Auto] This item appears only when you set the CPU Core Voltage to [Offset Mode] or [Adaptive Mode] and allows you to set the CPU core voltage offset. The values range from 0.001V to 0.999V with a 0.001V interval. Additional Turbo Mode CPU Core Voltage [Auto] This item appears only when you set the CPU Core Voltage to [Adaptive Mode] and allows you to set the additional turbo mode CPU core voltage. The values range from 0.001V to 1.920V with a 0.001V interval.
Total Adaptive Mode CPU Core Voltage [Auto] This item appears only when you set the CPU Core Voltage to [Adaptive Mode] and allows you to set the total adaptive mode CPU core voltage. The values range from 0.001V to 1.920V with a 0.001V interval.
2.5.17 CPU Cache Voltage [Auto] This item allows you to set the CPU cache voltage. Increase the cache voltage when increasing the ring frequency. Configuration options: [Auto] [Manual Mode] [Offset Mode].
[Adaptive Mode] is available for some specific CPU types.
CPU Cache Voltage Override [Auto] This item appears only when you set the CPU Cache Voltage to [Manual Mode] and allows you to set the CPU cache voltage override. The values range from 0.001V to 1.920V with a 0.001V interval.
Offset Mode Sign [+] This item appears only when you set the CPU Cache Voltage to [Offset Mode] or [Adaptive Mode] and allows you to set the offset mode sign. Configuration options: [+] [-] CPU Cache Voltage Offset [Auto] This item appears only when you set the CPU Cache Voltage to [Offset Mode] or [Adaptive Mode] and allows you to set the CPU cache voltage offset. The values range from 0.001V to 0.999V with a 0.001V interval.

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Additional Turbo Mode CPU Cache Voltage [Auto] This item appears only when you set the CPU Cache Voltage to [Adaptive Mode] and allows you to set the additional turbo mode CPU cache voltage. The values range from 0.001V to 1.920V with a 0.001V interval.
Total Adaptive Mode CPU Cache Voltage [Auto] This item appears only when you set the CPU Cache Voltage to [Adaptive Mode] and allows you to set the total adaptive mode CPU cache voltage. The values range from 0.001V to 1.920V with a 0.001V interval.
2.5.18 CPU Graphics Voltage [Auto] This item allows you to set the CPU graphics voltage. Increase the graphics voltage when increasing the iGPU frequency. Configuration options: [Auto] [Manual Mode] [Offset Mode] [Adaptive Mode].
[Adaptive Mode] is available for some specific CPU types.
CPU Graphics Voltage Override [Auto] This item appears only when you set the CPU Graphics Voltage to [Manual Mode] and allows you to set the CPU graphics voltage override. The values range from 0.001V to 1.920V with a 0.001V interval.
Offset Mode Sign [+] This item appears only when you set the CPU Graphics Voltage to [Offset Mode] or [Adaptive Mode] and allows you to set the offset mode sign. Configuration options: [+] [-] CPU Graphics Voltage Offset [Auto] This item appears only when you set the CPU Graphics Voltage to [Offset Mode] or [Adaptive Mode] and allows you to set the CPU graphics voltage offset. The values range from 0.001V to 0.999V with a 0.001V interval. Additional Turbo Mode CPU Graphics Voltage [Auto] This item appears only when you set the CPU Graphics Voltage to [Adaptive Mode] and allows you to set the additional turbo mode CPU graphics voltage. The values range from 0.001V to 1.920V with a 0.001V interval.
Total Adaptive Mode CPU Graphics Voltage [Auto] This item appears only when you set the CPU Graphics Voltage to [Adaptive Mode] and allows you to set the total adaptive mode CPU graphics voltage. The values range from 0.001V to 1.920V with a 0.001V interval.
2.5.19 CPU System Agent Voltage Offset Mode Sign [+] This item allows you to set the CPU system agent voltage offset mode sign. Configuration options: [+] [-].

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CPU System Agent Voltage Offset [Auto] This item allows you to set the CPU system agent voltage offset. Increase the value when increasing DRAM frequency. The values range from 0.001V to 0.999V with a 0.001V interval.
2.5.20 CPU Analog I/O Voltage Offset Mode Sign [+] This item allows you to set the CPU analog I/O voltage offset mode sign. Configuration options: [+] [-]. CPU Analog I/O Voltage Offset [Auto] This item allows you to set the CPU analog I/O voltage offset. Increase the value when increasing DRAM frequency. The values range from 0.001V to 0.999V with a 0.001V interval.
2.5.21 CPU Digital I/O Voltage Offset Mode Sign [+] This item allows you to set the CPU digital I/O voltage offset mode sign. Configuration options: [+] [-]. CPU Digital I/O Voltage Offset [Auto] This item allows you to set the CPU digital I/O voltage offset. Increase the value when increasing DRAM frequency. The values range from 0.001V to 0.999V with a 0.001V interval.
2.5.22 SVID Support [Auto] Disabling SVID Support stops the processor from commmunicating with the external voltage regulator. Configuration options: [Auto] [Disabled] [Enabled].
· We recommend that you disable this function when overclocking. · The following item appears only when you set SVID Support to [Enabled].
2.5.23 CPU Input Voltage (VCCIN) [Auto] This item allows you to set the CPU input voltage. The values range from 0.800V to 2.700V with a 0.010V interval.
2.5.24 DRAM Voltage [Auto] Allows you to set the DRAM Voltage. The values range from 1.185V to 1.800V with a 0.005V interval.
According to Intel CPU specifications, DIMMs with voltage requirement over 1.65V may damage the CPU permanently. We recommend that you install the DIMMs with the voltage requirement below 1.65V.

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2.5.25 PCH VLX Voltage [Auto] Allows you to set the voltage for the I/O on the PCH. Use the <+> or <-> keys to adjust the value. The values range from 1.185V to 2.135V with a 0.005V interval.
2.5.26 PCH Voltage [Auto] Allows you to set the Platform Controller Hub voltage. Use the <+> or <-> keys to adjust the value. The values range from 0.735V to 1.500V with a 0.005V interval.

The system may need better cooling system to work stably under high voltage settings.

2.5.27 DRAM CTRL REF Voltage [Auto]

Allows you to set the DRAM CTRL REF Voltage. The values range from 0.3950x to 0.6300x with a 0.0050x interval.

2.5.28 DRAM DATA REF Voltage on CHA [Auto]

Allows you to set the DRAM DATA REF Voltage on CHA. The values range from 0.3950x to 0.6300x with a 0.0050x interval

2.5.39 DRAM DATA REF Voltage on CHB [Auto]

Allows you to set the DRAM DATA REF Voltage on CHB. The values range from 0.3950x to 0.6300x with a 0.0050x interval

2.5.30 CPU Spread Spectrum [Auto] [Auto] [Disabled] [Enabled]

Automatic configuration. Enhances the BCLK overclocking ability. Sets to [Enabled] for EMI control.

2.6 Advanced menu
The Advanced menu items allow you to change the settings for the CPU and other system devices.
Be cautious when changing the settings of the Advanced menu items. Incorrect field values can cause the system to malfunction.

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2.6.1 CPU 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.

Intel® Adaptive Thermal Monitor [Enabled] [Enabled]

Enables the overheated CPU to throttle its clock speed to cool down.

[Disabled]

Disables the CPU thermal monitor function.

Hyper-threading [Enabled]

The Intel Hyper-Threading Technology allows a hyper-threading processor to appear as two logical processors to the operating system, allowing the operating system to schedule two threads or processes simultaneously.

[Enabled]

Two threads per activated core are enabled.

[Disabled]

Only one thread per activated core is enabled.

Active Processor Cores [All] Allows you to choose the number of CPU cores to activate in each processor package. Configuration options: [All] [1] [2] [3]

For some CPU types, only [All] and [1] appear.

Limit CPUID Maximum [Disabled] [Enabled]

Allows legacy operating systems to boot even without support for CPUs with extended CPUID functions.

[Disabled]

Disables this function.

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Execute Disable Bit [Enabled] [Enabled]

Enables the No-Execution Page Protection Technology.

[Disabled]

Forces the XD feature flag to always return to zero (0).

Intel® Virtualization Technology [Disabled] [Enabled]

Allows a hardware platform to run multiple operating systems separately and simultaneously, enabling one system to virtually function as several systems.

[Disabled]

Disables this function.

Hardware Prefetcher [Enabled] [Enabled]

Allows a hardware platform to automatically analyze the requirements and prefetch data and codes for the CPU.

[Disabled]

Disables this function.

Adjacent Cache Line Prefetch [Enabled] [Enabled]

Allows a hardware platform to perform adjacent cache line prefetching.

[Disabled]

Disables this function.

Boot performance mode [Max Non-Tu…] This item allows you to select the boot performance mode. Configuration options: [Max NonTurbo Performance] [Max battery] [Turbo Performance]

Dynamic Storage Accelerator [Disabled] Allows you to enable or disable Dynamic Storage Accelerator for C state configuration. Configuration options: [Enabled] [Disabled]

CPU Power Management Configuration This item allows you to manage and configure the CPU’s power.

Enhanced Intel® SpeedStep Technology [Enabled]

Allows you to enable or disable the Enhanced Intel® SpeedStep Technology (EIST).

[Disabled]

The CPU runs at its default speed.

[Enabled]

The operating system controls the CPU speed.

Turbo Mode [Enabled] Allows you to set the processor cores to run faster than the marked frequency in a specific condition. Configuration options: [Enabled] [Disabled]

Turbo Mode is available on selected CPU models only.

CPU C states [Auto] [Auto]

Automatic configuration.

[Enabled]

Enables the CPU C states.

[Disabled]

Disables the CPU C states.

The following items appear only when you set the CPU C states to [Enabled].

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Enhanced C1 state [Enabled] [Enabled]

Enables enhanced C1 state.

[Disabled]

Disables enhanced C1 state.

CPU C3 Report [Enabled] Allows you to disable or enable the CPU C3 report to OS. Configuration options: [Enabled] [Disabled] CPU C6 report [Enabled] Allows you to disable or enable the CPU C6 report to OS. Configuration options: [Enabled] [Disabled] C6 Latency [Short] Allows you to choose short or long latency for C6. Configuration options: [Short] [Long] CPU C7 report [CPU C7s] Allows you to disable or enable the CPU C7 report to OS. Configuration options: [Disabled] [CPU C7] [CPU C7s] C7 Latency [Long] Allows you to choose short or long latency for C6. Configuration options: [Short] [Long] Package C State Support [Auto] Allows you to disable or enable the whole C-State package support. Configuration options: [Auto] [Enabled] [C0/C1] [C2] [C3] [C6] [CPU C7] [CPU C7s] 2.6.2 PCH Configuration

PCI Express Configuration
DMI Link ASPM Control [Auto] Allows you to control the Active State Power Managemennt on both NB and SB side of the DMI Link. Configuration options: [Auto] [Enabled] [Disabled] ASPM Support [Disabled] Allows you to set the ASPM support. Configuration options: [Disabled] [Auto] [L0s] [L1] L0sL1].
PCIe Speed [Auto] Allows you to select the PCI Express port speed. Configuration options: [Auto] [Gen1] [Gen2] Intel® Rapid Start Technology
Intel® Rapid Start Technology [Disabled] Allows you to enable or disable Intel® Rapid Start Technology. Configuration options: [Enabled] [Disabled]

The following items appear only when you set the Intel® Rapid Start Technology to [Enabled].
Entry on S3 RTC Wake [Enabled] The system automatically wakes up and set to Rapid Start Technology S4 mode. Configuration options: [Enabled] [Disabled]

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Entry After [x] Allows you to set the wake-up time.The values range from 0 (immediately) to 120.
Active Page Threshold Support [Enabled] The system automatically set itself to sleep when the partition size is not enough for Rapid Start Technology to work. Configuration options: [Enabled] [Disabled] Active Memory Threshold [0] Key in the value for the additional partition size for Rapid Start Technology to work.

Ensure that the caching partition size is larger than the total memory size.

Hybrid Hard Disk Support [Disabled] Allows you to enable or disable hybrid hard disk support. Configuration options: [Enabled] [Disabled] Intel® Smart Connect Technology [Disabled]

ICST Configuration [Disabled] Allows you to enable or disable the ISCT configuration. Configuration options: [Enabled] [Disabled] 2.6.3 SATA Configuration
While entering Setup, the BIOS automatically detects the presence of SATA devices. The SATA Port items show Not Present if no SATA device is installed to the corresponding SATA port.

SATA Mode Selection [AHCI]

Allows you to set the SATA configuration.

[Disabled]

Disables the SATA function.

[IDE]

Set to [IDE] when you want to use the Serial ATA hard disk drives as Parallel ATA physical storage devices.

[AHCI]

Set to [AHCI] when you want the SATA hard disk drives to use the AHCI (Advanced Host Controller Interface). The AHCI allows the onboard storage driver to enable advanced Serial ATA features that increases storage performance on random workloads by allowing the drive to internally optimize the order of commands.

[RAID]

Set to [RAID Mode] when you want to create a RAID configuration from the SATA hard disk drives.

Aggressive LPM Support [Disabled] This item appears only when you set the previous item to [AHCI] and allows you to enable or disable PCH entering link power state aggressively. Configuration options: [Auto] [Disabled] [Enabled]

IDE Legacy / Native Mode Selection [Native] This item appears only when you set the SATA Mode Selection item to [IDE]. Configuration options: [Native] [Legacy]

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S.M.A.R.T. Status Check [Enabled] S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a monitor system. When read/write of your hard disk errors occur, this feature allows the hard disk to report warning messages during the POST. Configuration options: [Enabled] [Disabled] Hot Plug [Disabled] These items appear when you set the SATA Mode Selection item to [AHCI] or [RAID] and allow you to enable/disable SATA Hot Plug Support. Configuration options: [Disabled] [Enabled] 2.6.4 System Agent Configuration
VT-d [Enabled] Allows you to enable or disable VT-d function on MCH. Configuration options: [Enabled] [Disabled] This item is available for some specific CPU models.
CPU Audio Device [Enabled] Allows you to enable or disable CPU SA Audio Device. Configuration options: [Enabled] [Disabled] DVI Port Audio [Disabled] Allows you to enable or disable the DVI port. Configuration options: [Enabled] [Disabled] Graphics Configuration Allows you to select a primary display from iGPU, and PCIe graphical devices.
Primary Display [Auto] Allows you to select which of the iGPU/PCIE/PCI Graphics device should be the Primary Display. Configuration options: [Auto] [iGPU] [PCIE] [PCI] iGPU Memory [Auto] Allows you to select the amount of system memory allocated to DVMT 5.0 used by the iGPU. Configuration options: [Auto] [32M] [64M] [96M] [128M] [160M] [192M] [224M] [256M] [288M][320M] [352M] [384M] [416M] [448M] [480M] [512M] [1024M] Render Standby [Auto] Allows you to enable or disable Intel® Graphics Render Standby support to reduce iGPU power use when the system is idle. Configuration options: [Auto] [Disabled] [Enabled] iGPU Multi-Monitor [Disabled] Set this item to [Enabled] to empower both integrated and discrete graphics for multiple-monitor output. The iGPU shared system memory size will be fixed at 64MB. Configuration options: [Disabled] [Enabled] DMI Configuration Allows you to control various DMI functions.

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DMI Gen 2 [Auto] Allows you to enable or disable DMI Gen 2. Configuration options: [Auto] [Enabled] [Disabled] NB PCIe Configuration Allows you to configure the NB PCI Express settings.

PCIEX16_1 Link Speed [Auto] Allows you to configure the PCIEX16_1 speed. Configuration options: [Auto] [Gen1] [Gen2] [Gen3] DMI Link ASPM Control [Auto] Allows you to enable or disable the control of Active State Power Management on SA side of the DMI Link. Configuration options: [Auto] [Disabled] [L0s] [L1] [L0sL1] PEG – ASPM [Disabled] Allows you to control ASPM support for the PEG Device. The setting takes no effect if PEG is not the active device at present. Configuration options: [Disabled] [Auto] [ASPM L0s] [ASPM L1] [ASPM L0sL1] Memory Configuration

Memory Scrambler [Enabled]

Allows you to enable or disable Memory Scrambler support.

Memory Remap [Enabled]

Allows you to enable or disable remapping the memory above 4GB.

[Enabled]

Enables the function.

[Disabled]

Disables this function.

2.6.5 USB Configuration

The items in this menu allow you to change the USB-related features.

The USB Devices item shows the auto-detected values. If no USB device is detected, the item shows None.

Legacy USB Support [Enabled] [Disabled]

The USB devices can be used only for the BIOS setup program.

[Enabled]

Enables the support for USB devices on legacy operating systems (OS).

[Auto]

Allows the system to detect the presence of USB devices at startup. If detected, the USB controller legacy mode is enabled. If no USB device is detected, the legacy USB support is disabled.

Intel® xHCI Mode [Smart Auto] [Smart Auto] Enables the operation of xHCI controller.

[Auto]

Keeps the last operation of xHCI controller in OS during bootup.

[Enabled]

Enables the function.

[Disabled]

Disables the function.

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EHCI Hand-off [Disabled] [Enabled]

Enables the support for operating systems without an EHCI hand-off feature.

[Disabled]

Disables the function.

USB Single Port Control
USB3_1, 2, 5, 6 [Enabled] Allows you to enable or disable an individual USB port. Refer to the section 1.2.3 Motherboard layout in this user manual for the locations of the USB ports. Configuration options: [Enabled] [Disabled]. USB_3, 4, 7~14 [Enabled] Allows you to enable or disable an individual USB port. Refer to the section 1.2.3 Motherboard layout in this user manual for the locations of the USB ports. Configuration options: [Enabled] [Disabled].
2.6.6 Platform Misc Configuration
The items in this menu allow you to configure the Platform Misc.
PCI Express Native Power Management [Disabled] Allows you to enhance the power saving feature of PCI Express and perform ASPM operations in the operating system. Configuration options: [Disabled] [Enabled] Native ASPM [Disabled] The item appears only when you set the previous item to [Enabled] and allows you to enable or disable ASPM. Configuration options: [Enabled] [Disabled] 2.6.7 Onboard Devices Configuration

HD Audio Controller [Enabled] [Enabled]

Enables the HD Audio Device.

[Disabled]

Disables the HD Audio Device.

The following item appears only when you set the HD Audio Controller item to [Enabled].

Front Panel Type [HD]

Allows you to set the front panel audio connector (AAFP) mode to legacy AC’97 or highdefinition audio depending on the audio standard that the front panel audio module supports.

[HD]

Sets the front panel audio connector (AAFP) mode to high definition audio.

[AC97]

Sets the front panel audio connector (AAFP) mode to legacy AC’97

SPDIF Out Type [SPDIF] [SPDIF]

Sets to an SPDIF audio output.

[HDMI]

Sets to an HDMI audio output.

Realtek LAN Controller [Enabled] [Enabled]

Enables the Realtek LAN controller.

[Disabled]

Disables the controller.

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Realtek PXE OPROM [Disabled] This item appears only when you set the previous item to [Enabled] and allows you to enable or disable the PXE OptionRom of the Realtek LAN controller.
Configuration options: [Enabled] [Disabled] Serial Port Configuration The sub- items in this menu allow you to set the serial port configuration.
Serial Port [Enabled] Allows you to enable or disable the serial port (COM).Configuration options: [Enabled] [Disabled] Change Settings [IO=3F8h; IRQ=4] This item appears only when you set the Serial Port to [Enabled] and allows you to select the Serial Port base address. Configuration options: [IO=3F8h; IRQ=4] [IO=2F8h; IRQ=3] [IO=3E8h; IRQ=4] [IO=2E8h; IRQ=3] 2.6.8 APM

Deep S4 [Disabled] Allows you to enable or disable entering deep S4 sleep mode. The system in deep S4 state can be woken up via the power button, devices in LAN, or other ways except via the USB and PS/2 devices. Configuration options: [Enabled] [Disabled]

Restore AC Power Loss [Power Off] [Power On]

The system goes into on state after an AC power loss.

[Power Off]

The system goes into off state after an AC power loss.

[Last State]

The system goes into either off or on state, whatever the system state was before the AC power loss.

Power On By PS/2 Keyboard [Disabled] [Disabled]

Disables the Power On by a PS/2 keyboard.

[Space Bar] Sets the Space Bar on the PS/2 keyboard to turn on the system. [Ctrl-Esc]

Sets the Ctrl+Esc key on the PS/2 keyboard to turn on the system.

[Power Key]

Sets Power key on the PS/2 keyboard to turn on the system. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead.

Power On By PS/2 Mouse [Disabled] [Disabled]

Disables the Power On by a PS/2 mouse.

[Enabled]

Enables the Power On by a PS/2 mouse. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead.

Power On By PCIE/PCI [Disabled] [Disabled]

Disables the PCIE/PCI devices to generate a wake-on-LAN feature of the Intel®/Realtek LAN device.

[Enabled]

Enables the PCIE/PCI devices to generate a wake-on-LAN feature of the Intel®/Realtek LAN device.

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Power On By Ring [Disabled] [Disabled]

Disables Ring to generate a wake event.

[Enabled]

Enables Ring to generate a wake event.

Power On By RTC [Disabled] [Disabled]

Disables RTC to generate a wake event.

[Enabled]

When set to [Enabled], the items RTC Alarm Date (Days) and Hour/ Minute/Second will become user-configurable with set values.

2.6.9 Network Stack

Network Stack [Disabled] This item allows user to disable or enable the UEFI network stack. Configuration options: [Disabled] [Enabled]

The following two items appear only when you set the previous item to [Enabled].

Ipv4 PXE Support [Enabled] This item allows user to disable or enable the Ipv4 PXE Boot support. Configuration options: [Disable Link] [Enabled] Ipv6 PXE Support [Enabled] This item allows user to disable or enable the Ipv6 PXE Boot support. Configuration options: [Disable Link] [Enabled]

2.7 Monitor menu
The Monitor menu displays the system temperature/power status, and allows you to change the fan settings.

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Scroll down to display the following items:

2.7.1 CPU Temperature [xxxºC/xxxºF]

The onboard hardware monitor automatically detects and displays the CPU temperature. Select Ignore if you do not wish to display the detected temperature.

2.7.2 CPU / Chassis Fan1/2 Speed [xxxx RPM] or [Ignore] / [N/A]

The onboard hardware monitor automatically detects and displays the CPU / chassis fan 1/2
speeds in rotations per minute (RPM). If the fan is not connected to the motherboard, the field shows N/A. Select Ignore if you do not wish to display the detected speed.

2.7.3 CPU Input Voltage (VCCIN), 3.3V Voltage, 5V Voltage, 12V Voltage

The onboard hardware monitor automatically detects the voltage output through the onboard voltage regulators. Select Ignore if you do not want to detect this item.

2.7.4 CPU Q-Fan Control [Enabled] [Disabled] [Enabled]

Disables the CPU Q-Fan control feature. Enables the CPU Q-Fan control feature.

CPU Fan Speed Low 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] [100RPM] [200RPM] [300 RPM] [400 RPM] [500 RPM]

CPU Fan Profile [Standard]

This item appears only when you enable the CPU Q-Fan Control feature and allows you to set the appropriate performance level of the CPU fan.

[Standard]

Sets to [Standard] to make the CPU fan automatically adjust depending on the CPU temperature.

[Silent]

Sets to [Silent] to minimize the fan speed for quiet CPU fan operation.

[Turbo]

Sets to [Turbo] to achieve maximum CPU fan speed.

[Manual]

Sets to [Manual] to assign detailed fan speed control parameters.

The following four items appear only when you set CPU Fan Profile to [Manual].

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CPU Upper Temperature [70] Use the <+> and <-> keys to adjust the upper limit of the CPU temperature. The values range from 20ºC to 75ºC.
CPU Fan Max. Duty Cycle(%) [100] Use the <+> and <-> keys to adjust the maximum CPU fan duty cycle. The values range from 20% to 100%. When the CPU temperature reaches the upper limit, the CPU fan will operate at the maximum duty cycle.
CPU Lower Temperature [20] Displays the lower limit of the CPU temperature.
CPU Fan Min. Duty Cycle(%) [20] Use the <+> and <-> keys to adjust the minimum CPU fan duty cycle. The values range from 20% to 100%. When the CPU temperature is under the lower limit, the CPU fan will operate at the minimum duty cycle.
2.7.5 Chassis1/2 Q-Fan Control [Enabled] [Disabled] [Enabled]

Disables the Chassis1/2 Q-Fan control feature. Enables the Chassis1/2 Q-Fan control feature.

Chassis1/2 Fan Speed Low Limit [600 RPM] This item appears only when you enable the Chassis1/2 Q-Fan Control feature and allows you to disable or set the chassis1/2 fan warning speed. Configuration options: [Ignore] [200RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM]

Chassis1/2 Fan Profile [Standard]

This item appears only when you enable the Chassis1/2 Q-Fan Control feature and allows you to set the appropriate performance level of the chassis fan.

[Standard]

Sets to [Standard] to make the chassis fan automatically adjust depending on the chassis temperature.

[Silent]

Sets to [Silent] to minimize the fan speed for quiet chassis fan operation.

[Turbo]

Sets to [Turbo] to achieve maximum chassis fan speed.

[Manual]

Sets to [Manual] to assign detailed fan speed control parameters.

The following four items appear only when you set Chassis1/2 Fan Profile to [Manual].

Chassis1/2 Upper Temperature [70] Use the <+> and <-> keys to adjust the upper limit of the chassis temperature. The values range from 40ºC to 75ºC.
Chassis1/2 Fan Max. Duty Cycle(%) [100] Use the <+> and <-> keys to adjust the maximum chassis fan duty cycle. The values range from 60% to 100%. When the chassis temperature reaches the upper limit, the chassis fan will operate at the maximum duty cycle.
Chassis1/2 Lower Temperature [40] Displays the lower limit of the chassis temperature.

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Chassis1/2 Fan Min. Duty Cycle(%) [60] Use the <+> and <-> keys to adjust the minimum chassis fan duty cycle. The values range from 60% to 100%. When the chassis temperature is under 40ºC, the chassis fan will operate at the minimum duty cycle.
2.7.6 Anti Surge Support [Enabled] This item allows you to enable or disable the Anti Surge function. Configuration options: [Disabled] [Enabled] 2.8 Boot menu
The Boot menu items allow you to change the system boot options.
Scroll down to display the following items:

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2.8.1 Fast Boot [Enabled] [Enabled] [Disabled]

Select to accelerate the boot speed. Select to go back to normal boot.

The following four items appear when you set Fast Boot to [Enabled].

USB Support [Partial Initialization] [Disabled]

All USB devices will not be available until OS boot up for a fastest POST time.

[Full Initialization]

All USB devices will be available during POST. This process will extend the POST time.

[Partial Initialization]

For a faster POST time, only the USB ports with keyboard and mouse connections will be detected.

PS/2 Keyboard and Mouse Support [Auto]

Select any of these settings when PS/2 keyboard and mouse are installed. These settings only apply when Fast Boot is enabled.

[Auto]

For a faster POST time, PS/2 devices will only be available when the system boots up or rebooted when the PS/2 devices have not been reconnected or changed. If you disconnect or change PS/2 devices before restarting the system, PS/2 devices will not be available and BIOS setup program will not be accessible via PS/2 devices.

[Full Initialization] For full system control, PS/2 devices will be available during POST at any circumstances. This process will extend POST time. [Disabled]

For the fastest POST time, all PS/2 devices will not be available until your computer enters the operating system.

Network Stack Driver Support [Disabled] [Disabled]

Select to skip the network stack driver from loading during POST.

[Enabled]

Select to load the network stack driver during POST.

Next Boot after AC Power Loss [Normal Boot] [Normal Boot] Returns to normal boot on the next boot after AC power loss.

[Fast Boot]

Accelerates the boot speed on the next boot after AC power loss.

2.8.2 Boot Logo Display [Enabled] [Enabled] [Disabled]

Display the boot logo during POST. Hide the logo during POST.

Set this item to [Enabled] to use the ASUS MyLogo 2TM feature.
Boot Logo Size Control [Auto] This item appears only when you set Boot Logo Display to [Enabled] and allows you to adjust the boot logo size. Configuration options: [Auto] [Full Screen].

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POST Delay Time [3 sec] This item appears only when you set Boot Logo Display to [Enabled]. 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 normal boot.

Post Report [5 sec] This item appears only when you set Boot Logo Display to [Disabled]. This item allows you to select a desired post report waiting time. Configuration options: [1] ~ [10] [Until Press ESC]..

2.8.3 Bootup NumLock State [On] [On]

Sets the power-on state of the NumLock to [On].

[Off]

Sets the power-on state of the NumLock to [Off].

2.8.4 Wait for `F1′ If Error [Enabled]

When this item is set to [Enabled], the system waits for the F1 key to be pressed when error occurs. Configuration options: [Disabled] [Enabled]

2.8.5 Option ROM Messages [Force BIOS] [Force BIOS] [Keep Current]

The third-party ROM messages will be forced to display during the boot sequence.
The third-party ROM messages will be displayed only if the third-party manufacturer had set the add-on device to do so.

2.8.6 Interrupt 19 Capture [Disabled] [Enabled] [Disabled]

Allows the option ROMs to trap Interrupt 19. Disables this function.

2.8.7 Setup Mode [EZ Mode] [Advanced Mode] Sets Advanced Mode as the default screen for entering the BIOS setup program.

[EZ Mode]

Sets EZ Mode as the default screen for entering the BIOS setup program.

2.8.8 CSM (Compatibility Support Module)

Allows you to configure the CSM (Compatibility Support Module) items to fully support the various VGA, bootable devices and add-on devices for better compatibility.

Launch CSM [Enabled] [Auto]

The system automatically detects the bootable devices and the add-on devices.

[Enabled]

For better compatibility, enable the CSM to fully support the non-UEFI driver add-on devices or the Windows® UEFI mode.

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[Disabled]

Disable the CSM to fully support the Windows® Security Update and Security Boot.
The following four items appear when you set Launch CSM to [Enabled].

Boot Devices Control [UEFI and Legacy OpROM] Allows you to select the type of devices that you want to boot up. Configuration options: [UEFI and Legacy OpROM] [Legacy OpROM only] [UEFI only]

Boot from Network Devices [Legacy OpROM first] Allows you to select the type of network devices that you want to launch. Configuration options: [Legacy OpROM first] [UEFI driver first] [Ignore]

Boot from Storage Devices [Legacy OpROM first] Allows you to select the type of storage devices that you want to launch. Configuration options: [Both, Legacy OpROM first] [Both, UEFI first] [Legacy OpROM first] [UEFI driver first] [Ignore]

Boot from PCIe/PCI Expansion Devices [Legacy OpROM first] Allows you to select the type of PCIe/PCI expansion devices that you want to launch. Configuration options: [Legacy OpROM first] [UEFI driver first]

2.8.9 Secure Boot

Allows you to configure the Windows® Secure Boot settings and manage its keys to protect the system from unauthorized access and malwares during POST.

OS Type [Windows UE…]

Allows you to select your installed operating system.

[Windows UEFI mode]

Executes the Microsoft® Secure Boot check. Only select this option when booting on Windows® UEFI mode or other Microsoft® Secure Boot compliant OS.

[Other OS]

Get the optimized function when booting on Windows® non-UEFI mode, Windows® Vista/XP, or other Microsoft® Secure Boot non-compliant OS. Only on Windows® UEFI mode that Microsoft® Secure Boot can function properly.

The following item appears when OS Type is set to [Windows UEFI mode].
Key Management This item appears only when you set Secure Boot Mode to [Custom]. It allows you to manage the Secure Boot keys.
Clear Secure Boot keys This item appears only when you load the default Secure Boot keys. This item allows you to clear all default Secure Boot keys. Save Secure Boot keys This item appears only when you load the default Secure Boot keys. This item allows you to save all default Secure Boot keys.

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PK Management The Platform Key (PK) locks and secures the firmware from any non-permissible changes. The system verifies the PK before your system enters the OS.
Delete PK Allows you to delete the PK from your system. Once the PK is deleted, all the system’s Secure Boot keys will not be active. Configuration options: [Yes] [No] Load PK from File Allows you to load the downloaded PK from a USB storage device.
The PK file must be formatted as a UEFI variable structure with time-based authenticated variable.
KEK Management The KEK (Key-exchange Key or Key Enrollment Key) manages the Signature database (db) and Revoked Signature database (dbx).
Key-exchange Key (KEK) refers to Microsoft® Secure Boot Key-Enrollment Key (KEK).
Delete the KEK Allows you to delete the KEK from your system. Configuration options: [Yes] [No] Load KEK from File Allows you to load the downloaded KEK from a USB storage device. Append KEK from file Allows you to load the additional KEK from a storage device for an additional db and dbx loaded management.
The KEK file must be formatted as a UEFI variable structure with time-based authenticated variable.
DB Management The db (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.
Delete the db Allows you to delete the db file from your system. Configuration options: [Yes] [No] Load db from File Allows you to load the downloaded db from a USB storage device. Append db from file Allows you to load the additional db from a storage device so that more images can be loaded securely.
The DB file must be formatted as a UEFI variable structure with time-based authenticated variable.

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DBX Management The dbx (Revoked Signature database) lists the forbidden images of db items that are no longer trusted and cannot be loaded.
Delete the DBX Allows you to delete the DBX file from your system. Configuration options: [Yes] [No] Load DBX from File Allows you to load the downloaded DBX from a USB storage device. Append DBX from file Allows you to load the additional DBX from a storage device so that more db’s images cannot be loaded.
The DBX file must be formatted as a UEFI variable structure with time-based authenticated variable.
2.8.10 Boot Option Priorities
These items specify the boot device priority sequence from the available devices. The number of device items that appears on the screen depends on the number of devices installed in the system.
· To select the boot device during system startup, press when ASUS Logo appears.
· To access Windows OS in Safe Mode, do any of the following: · Press when ASUS Logo appears. · Press after POST.
2.8.11 Boot Override
These items displays the available devices. The number of device items that appears on the screen depends on the number of devices installed in the system. Click an item to start booting from the selected device.

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2.9 Tools menu
The Tools menu items allow you to configure options for special functions. Select an item then press to display the submenu.

2.9.1 ASUS EZ Flash 2 Utility
Allows you to run ASUS EZ Flash 2. Press [Enter] to launch the ASUS EZ Flash 2 screen.
For more details, see section 2.1.2 ASUS EZ Flash 2.
2.9.2 ASUS O.C. Profile
This item allows you to store or load multiple BIOS settings.
The Setup Profile Status items show Not Installed if no profile is created.
Save to Profile 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