BIOS Manual Motherboard ROG STRIX Z690 Series
E19568 First Edition January 2022 Copyright© 2022 ASUSTeK COMPUTER INC. All Rights Reserved. No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. (“ASUS”).
Contents 1. Knowing BIOS................................................................................................ 5 2. BIOS setup program...................................................................................... 6 2.1 Advanced Mode.............................................................................. 7 2.2 EZ Mode....................................................................................... 11 2.3 Qfan Control.......................................................
11. 4 Updating BIOS.............................................................................................. 92 11.1 ASUS EZ Flash 3.......................................................................... 92 11.2 ASUS CrashFree BIOS 3..............................................................
BIOS Setup 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 keyboardonly 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.
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 or during the Power-On Self Test (POST). If you do not press or , POST continues with its routines. Entering BIOS Setup after POST To enter BIOS Setup after POST: • Press ++ simultaneously.
2.1 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. The default screen for entering the BIOS setup program can be changed. Refer to the Setup Mode item in section Boot menu for details.
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.
AI OC Guide This button above the menu bar allows you to view the descriptions of AI overclocking and enable it. You may also access this item by pressing the key on the keyboard. • Refer to section AI OC Guide for more information. • This function is only enabled when using an unlocked CPU. Search This button allows you to search for BIOS items by entering its name, enter the item name to find the related item listing. You may also access this item by pressing the key on the keyboard.
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 userconfigurable. 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.
2.2 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, select Advanced Mode(F7) or press the hotkey for the advanced BIOS settings. To switch from Advanced Mode to EZ Mode, click EZ Mode(F7) or press the hotkey. Displays the system properties of the selected mode.
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.
Configuring fans manually Select Manual from the list of profiles to manually configure your fans’ operating speed. Speed points Select to manually configure your fans To 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 the fans’ operating speed. 3. Click Apply to save the changes then click Exit (ESC).
2.4 AI OC Guide • The screenshot shown in this section is for reference purposes only, and may not exactly match what you see on your screen. • This function is only enabled when using an unlocked CPU. The AI OC Guide allows you to enable the Ai Overclocking feature, or view a quick guide of the Ai Overclocking feature which highlights the recommended setup procedure and descriptions of the AI Overclocking. Clicking on Enable AI will enable AI Overclocking.
3. My Favorites My Favorites is your personal space where you can easily save and access your favorite BIOS items. You can personalize this screen by adding or removing items.
Adding items to My Favorites To add BIOS items: 1. Press on your keyboard or click MyFavorite from the BIOS screen 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. Main menu panel Selected shortcut items Submenu panel Delete all favorite items Recover to default favorite items 3. Select an item from main menu panel, then click the submenu that you want to save or press on your keyboard.
4. Main menu The Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program. The Main menu provides you an overview of the basic system information, and allows you to set the system date, time, language, and security settings. Security The Security menu items allow you to change the system security settings.
• If you have forgotten your BIOS password, erase the CMOS Real Time Clock (RTC) RAM to clear the BIOS password. See the motherboard for information on how to erase the RTC RAM via the Clear CMOS header. • The Administrator or User Password items on top of the screen show the default [Not Installed]. After you set a password, these items show [Installed]. Administrator Password If you have set an administrator password, we recommend that you enter the administrator password for accessing the system.
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 other BIOS items. Ai Overclock Tuner [Auto] Loads the optimal settings for the system.
The following item appears only when Ai Overclock Tuner is set to [Manual] or [ASUS Enhanced Memory Profile].. BCLK Frequency Allows you to set the BCLK (base clock) frequency to enhance the system performance. Use the <+> or <-> to adjust the value. We recommend you to set the value based on the CPU specification, as high BCLK frequencies may damage the CPU permanently. The following item appears only when Ai Overclock Tuner is set to [ASUS Enhanced Memory Profile].
DRAM Frequency 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: [Auto] [DDR5-800MHz] - [DDR5-13333MHz] Performance Core Ratio [Auto] The system will adjust all Performance core ratios automatically. [Sync All Cores] Configure a core ratio limit to synchronize all Performance cores.
The following item appears only when Performance Core Ratio is set to [Sync All Cores]. ALL-Core Ratio Limit Enter [Auto] to apply the CPU default Turbo Ratio setting or manually assign a Core ratio limit to synchronize all cores. Use the <+> or <-> to adjust the value. Configuration options: [Auto] [8] - [85] The following items appear only when Performance Core Ratio is set to [By Core Usage].
The following item appears only when Efficient Core Group0 Specific Adaptive Voltage is set to [Adaptive Mode]. Offset Mode Sign [+] Offset the CPU core voltage by a positive value. [-] Offset the CPU core voltage by a negative value. Efficient Core Group0 Offset Configure the CPU core voltage offset value. Use the <+> or <-> to adjust the value. The values range from 0.001 V to 0.999 V with an interval of 0.001 V. Configuration options: [Auto] [0.00100] - [0.
AVX512 Allows you to enable or disable the AVX 512 Instructions. Configuration options: [Auto] [Disabled] [Enabled] AVX512 is only available when E-Cores are disabled. AVX2 Ratio Offset to per-core Ratio Limit Configuration options: [Auto] [User Specify] The following item appears only when AVX2 Ratio Offset to per-core Ratio Limit is set to [User Specify]. AVX2 Ratio Offset Specifies number of bins to decrease AVX ratio vs. Per-Core Ratio.
DRAM RAS# ACT Time Configuration options: [Auto] [1] - [511] DRAM Command Rate Configuration options: [Auto] [1N] [2N] [3N] [N:1] The following item appears only when DRAM Command Rate is set to [N:1]. N to 1 ratio Number of bubbles between each valid command cycle.
Skew Control DDRCRCOMPCTL0/1/2 Ctl0 dqvrefup Configuration options: [Auto] [0] - [255] Ctl0 dqvrefdn Configuration options: [Auto] [0] - [255] Ctl0 dqodtvrefup Configuration options: [Auto] [0] - [255] Ctl0 dqodtvrefdn Configuration options: [Auto] [0] - [255] Ctl1 cmdvrefup Configuration options: [Auto] [0] - [255] Ctl1 ctlvrefup Configuration options: [Auto] [0] - [255] Ctl1 clkvrefup Configuration options: [Auto] [0] - [255] Ctl1 ckecsvrefup Configuration options: [Auto] [0] - [255] Ctl2 cmdvrefup Config
DQ RTT PARK Configuration options: [0 DRAM Clock] [34 DRAM Clock] [40 DRAM Clock] [48 DRAM Clock] [60 DRAM Clock] [80 DRAM Clock] [120 DRAM Clock] [240 DRAM Clock] DQ RTT PARK DQS Configuration options: [0 DRAM Clock] [34 DRAM Clock] [40 DRAM Clock] [48 DRAM Clock] [60 DRAM Clock] [80 DRAM Clock] [120 DRAM Clock] [240 DRAM Clock] GroupA CA ODT Configuration options: [0 DRAM Clock] [40 DRAM Clock] [60 DRAM Clock] [80 DRAM Clock] [120 DRAM Clock] [240 DRAM Clock] [480 DRAM Clock] GroupA CS ODT Configuration o
SenseAmp Offset Training Configuration options: [Auto] [Enabled] [Disabled] Early ReadMPR Timing Centering 2D Configuration options: [Auto] [Enabled] [Disabled] Read MPR Training Configuration options: [Auto] [Enabled] [Disabled] Receive Enable Training Configuration options: [Auto] [Enabled] [Disabled] Jedec Write Leveling Configuration options: [Auto] [Enabled] [Disabled] Early Write Timing Centering 2D Configuration options: [Auto] [Disabled] [Enabled] Early Read Timing Centering 2D Configuration options
Read Timing Centering 2D Configuration options: [Auto] [Disabled] [Enabled] Command Voltage Centering Configuration options: [Auto] [Disabled] [Enabled] Early Command Voltage Centering Configuration options: [Auto] [Disabled] [Enabled] Write Voltage Centering 2D Configuration options: [Auto] [Disabled] [Enabled] Read Voltage Centering 2D Configuration options: [Auto] [Disabled] [Enabled] Late Command Training Configuration options: [Disabled] [Enabled] [Auto] Round Trip Latency Configuration options: [Auto]
DIMM DFE Training Configuration options: [Auto] [Disabled] [Enabled] Tx Dqs Dcc Training Configuration options: [Auto] [Disabled] [Enabled] Rank Margin Tool Configuration options: [Auto] [Disabled] [Enabled] Memory Test Configuration options: [Auto] [Disabled] [Enabled] DIMM SPD Alias Test Configuration options: [Auto] [Disabled] [Enabled] Receive Enable Centering 1D Configuration options: [Auto] [Disabled] [Enabled] Retrain Margin Check Configuration options: [Auto] [Disabled] [Enabled] Write Drive Strengt
tWRRD_dg Configuration options: [Auto] [0] - [511] tRDRD_dr Configuration options: [Auto] [0] - [255] tRDRD_dd Configuration options: [Auto] [0] - [255] tRDWR_dr Configuration options: [Auto] [0] - [255] tRDWR_dd Configuration options: [Auto] [0] - [255] tWRWR_dr Configuration options: [Auto] [0] - [127] tWRWR_dd Configuration options: [Auto] [0] - [255] tWRRD_dr Configuration options: [Auto] [0] - [127] tWRRD_dd Configuration options: [Auto] [0] - [127] tWRPRE Configuration options: [Auto] [0] - [1023] tPR
Misc. MRC Fast Boot Allows you to enable or disable the MRC fast boot. Configuration options: [Disabled] [Enabled] MCH Full Check Enable this item to enhance the system stability. Setting this item to [Disabled] may enhance the DRAM overclocking capability. Configuration options: [Auto] [Enabled] [Disabled] Mem Over Clock Fail Count Configuration options: [Auto] [1] - [255] Training Profile Allows you to select the DIMM training profile.
The following item appears only when Dynamic Memory Boost is set to [Disabled]. Realtime Memory Frequency Allows you to enable or disable Memory Frequency feature. Allows manual switching between in runtime between default SPD Profile frequency and selected XMP profile frequency. Only valid if an XMP Profile is selected. Configuration options: [Disabled] [Enabled] SA GV System Agent Geyserville. Can disable, fix to a specific point, or enable frequency switching.
CPU Load-line Calibration The load-line is defined by the Intel VRM specification and affects the level of voltage supplied to the processor. Higher load-line calibration settings result in reduced VDroop at the expense of voltage overshoot and will increase CPU temperatures due to higher voltage under load. Select from level 1 to 7 to adjust the load-line slope. Level 1 = greater VDroop, Level 7 = minimum VDroop.
The following item appears only when CPU VRM Switching Frequency is set to [Auto]. VRM Spread Spectrum Allows you to reduce the magnitude of peak noise from the VRM. Enable this item to reduce peak noise. Disable this settings when overclocking. Configuration options: [Auto] [Disabled] [Enabled] CPU Power Duty Control CPU power duty control adjusts the duty cycle of each VRM phase based upon current and/or temperature. [Auto] Automatically selects the power duty control. [T.
CPU Graphics Current Capability The CPU Graphics current capability adjusts the total power range for CPU Graphics overclocking. A higher value provides a wider total power range and extends the overclocking frequency range simultaneously. Configuration options: [Auto] [100%] [140%] Configure higher values when overclocking or under a high CPU Graphics loading for extra power support.
Auto Voltage Caps CPU Core Auto Voltage Cap Setting this to a specific value will set a ceiling for CPU Core Auto Voltage. When not in manual mode, it’s effectiveness is subject to other factors such as AC/DC Loadline values and CPU’s native VID. Configuration options: [Auto] [0.60000] - [1.70000] CPU Input Auto Voltage Cap Setting this to a specific value will set a ceiling for CPU Input Auto Voltage. Configuration options: [Auto] [1.50000] - [2.
CPU Graphics Current Limit Allows you to configure a high current limit to prevent frequency or power throttling when overclocking. Configuration options: [Auto] [0.00] - [511.75] Long Duration Package Power Limit An Intel parameter known as [power limit 1] and specified in Watts. The defualt value is defined by TDP of the processor. Increasing the value will allow the Turbo ratio to be maintained for a longer duration under higher current loads.
IA VR Voltage Limit Voltage Limit (VMAX). This value represents the Maximum instantaneous voltage allowed at any given time. Range is 0 - 7999mV. Uses BIOS VR mailbox command 0x8. Configuration options: [Auto] [0] - [7999] Thermal Velocity Boost TVB Voltage Optimizations This service controls thermal based voltage optimizations for processors that implement the Intel Thermal Velocity Boost (TVB) feature. This item is set to [Enabled] by default. Uses Overclocking Mailbox command 0x18/0x19.
The following item appears only when Negative Ratio Offset A is set to [User Specify]. Ratio Offset Use the <+> and <-> keys to adjust the value. Configuration options: [0] - [31] Temperature B Package passing this temperature threshold will engage the negative ratio offset specified in Negative Ratio Offset B. Unit in Degree Celsius.
SA PLL Frequency Override Allows you to configure Sa PLL Frequency. Configuration options: [Auto] [3200 MHz] [1600 MHz] BCLK TSC HW Fixup Allows you to enable or disable BCLK TSC HW Fixup disable during TSC copy from PMA to APIC. Configuration options: [Enabled] [Disabled] Core Ratio Extension Mode Allows you to enable or disable Core Ratio Above 85 Extension Mode. [Disabled] Max Overclocking Ratio Limit as specified by OCMB 0x1 command is 85.
PLL Termination Voltage Allows you to configure the voltage for the PLL Termination. Use the <+> and <-> keys to adjust the value. The values range from 0.800V to 1.800V with an interval of 0.010V. Configuration options: [Auto] [0.80000V] - [1.80000V] CPU Standby Voltage Allows you to configure the voltage for the CPU Standby. Use the <+> and <-> keys to adjust the value. The values range from 0.800V to 1.800V with an interval of 0.010V. Configuration options: [Auto] [0.80000] - [1.80000] PCH 1.
Recalibrate Cooler Allows you to recalibrate your cooler efficiency. Cooler Re-evaluation Algorithm Allows you to set how inclined the re-evaluation will update. Configuration options: [Normal] [More inclined to update] [Very inclined to update] [Less inclined to update] [Least inclined to update] Optimism Scale Allows you to set the optimism of the predictions. The higher the value, the more optimistic the predictions and vice versa.
CPU Core/Cache Voltage Configures the mode of Voltage fed to the CPU cores. Manual mode allows user-defined values. Offset mode modifies values by SVID. Configuration options: [Auto] [Manual Mode] [Offset Mode] The following item appears only when CPU Core/Cache Voltage is set to [Manual Mode]. CPU Core Voltage Override Allows you to configure the input voltage for the CPU by the external voltage regulator. Use the <+> and <-> keys to adjust the value. The values range from 0.600V to 1.
CPU Core Voltage Offset Allows you to configure the input voltage for the CPU by the external voltage regulator. Use the <+> or <-> to adjust the value. The values range from 0.005V to 0.635V with an interval of 0.005V. Configuration options: [Auto] [0.00500] - [0.63500] The following items appear only when CPU Core/Cache Voltage is set to [Adaptive Mode]. Additional Turbo Mode CPU Core Voltage Allows you to configure the amount of voltage fed to the CPU cores when running in Turbo Mode.
CPU L2 Voltage Allows you to configure the voltage for the CPU L2. This may help for sustaining high clock speeds. Configuration options: [Auto] [Manual Mode] [Adaptive Mode] The following item appears only when CPU L2 Voltage is set to [Manual Mode]. CPU L2 Voltage Override Allows you to configure the voltage for the CPU L2. Use the <+> or <-> to adjust the value. The values range from 0.700V to 1.800V with an interval of 0.001V. Configuration options: [Auto] [0.70000] - [1.
The following item appears only when CPU System Agent Voltage is set to [Offset Mode]. CPU System Agent Voltage Offset Allows you to configure the CPU System Agent Voltage offset value. Use the <+> or <-> to adjust the value. The values range from 0.001V to 0.999V with an interval of 0.001V. Configuration options: [Auto] [0.00100] - [0.99900] You need to save the changes and reset the system for the changes to take effect. CPU Input Voltage Allows you to configure the voltage for the CPU Input.
The following items appear only when PMIC Voltages is set to [Sync All PMICs]. SPD HUB VLDO (1.8V) Allows you to set the main power for the SPD Hub Logic. Default set to 1.8V. Use the <+> or <-> to adjust the value. The values range from 1.700V to 2.000V with an interval of 0.100V. Configuration options: [Auto] [1.70000] - [2.00000] SPD HUB VDDIO (1.0V) Allows you to set the main power for the SPD Hub side-band interface. Default set to 1.0V. Use the <+> or <-> to adjust the value. The values range from 0.
The following items appear only when PMIC Voltages is set to [By per PMIC]. PMIC0-3 SPD HUB VLDO (1.8V) Allows you to set the main power for the SPD Hub Logic. Default set to 1.8V. Use the <+> or <-> to adjust the value. The values range from 1.700V to 2.000V with an interval of 0.100V. Configuration options: [Auto] [1.70000] - [2.00000] PMIC0-3 SPD HUB VDDIO (1.0V) Allows you to set the main power for the SPD Hub side-band interface. Default set to 1.0V. Use the <+> or <-> to adjust the value.
6. Advanced menu The Advanced menu items allow you to change the settings for the CPU and other system devices. Scroll down to display other BIOS items. Be cautious when changing the settings of the Advanced menu items. Incorrect field values can cause the system to malfunction.
6.1 Platform Misc Configuration The items in this menu allow you to configure the platform-related features. Scroll down to display other BIOS items. PCI Express Native Power Management Allows you to enhance the power saving feature of PCI Express and perform ASPM operations in the operating system. Configuration options: [Disabled] [Enabled] The following item appears only when PCI Express Native Power Management is set to [Enabled].
SA - PCI Express DMI ASPM Allows you to set the DMI ASPM Support. Configuration options: [Disabled] [Auto] [ASPM L1] DMI Gen3 ASPM Allows you to set the DMI Gen3 ASPM Support. Configuration options: [Disabled] [Auto] [ASPM L1] PEG - ASPM Allows you to control the ASPM support for the PEG 0. This has no effect if PEG is not the currently active device. Configuration options: [Disabled] [L0s] [L1] [L0sL1] PCI Express Clock Gating Allows you to enable or disable PCI Express Clock Gating for each root port.
Hardware Prefetcher Allows you to enable or disable the MLC streamer prefetcher. Configuration options: [Disabled] [Enabled] Adjacent Cache Line Prefetch Allows you to prefetch adjacent cache lines, reducing the DRAM loading time and improving the system performance. Configuration options: [Disabled] [Enabled] Intel (VMX) Virtualization Technology When set to [Enabled], VMX can utilize the additional hardware capabilities provided by Vanderpool Technology.
CPU - Power Management Control The items in this submenu allow you to manage and configure the CPU’s power. Boot performance mode Allows you to select the performance state that the BIOS will set starting from the reset vector. Configuration options: [Max Battery] [Max Non-Turbo Performance] [Turbo Performance] [Auto] Intel(R) SpeedStep(tm) Allows more than two frequency to be supported.
Ramp Down Time Allows you to set the maximum Ramp Down randomization time in micro ticks. This is for acoustic noise mitigation Dynamic Periodicity Alteration (DPA) tuning. Use the <+> or <-> to adjust the value. Configuration options: [0] - [255] IA VR Domain Disable Fast PKG C State Ramp for IA Domain This option needs to be configured to reduce acoustic noise during deeper C states. [FALSE] Don’t disable Fast ramp during deeper C states. [TRUE] Disable Fast ramp during deeper C state.
6.3 System Agent (SA) Configuration The items in this menu allow you to change the System Agent (SA) parameters. VT-d Allows you to enable virtualization technology function on memory control hub. Configuration options: [Enabled] [Disabled] The following item appears only when VT-d is set to [Enabled]. Control Iommu Pre-boot Behavior Allows you to enable IOMMU in Pre-boot environment (if DMAR table is installed in DXE and if VTD_INFO_PPI is installed in PEI).
DVMT Pre-Allocated Allows you to select the DVMT 5.0 Pre-Allocated (Fixed) Graphics Memory size used by the Internal Graphics Device. Configuration options: [32M] [64M] [96M] [128M] [160M] [192M] [224M] [256M] [288M] [320M] [352M] [384M] [416M] [448M] [480M] [512M] RC6(Render Standby) Allows you to enable render standby support. Configuration options: [Disabled] [Enabled] VMD setup menu The items in this submenu allow you to set the VMD configuration settings.
M.2_1 Link Speed Allows you to configure the M.2_1 slot. Configuration options: [Auto] [Gen1] [Gen2] [Gen3] [Gen4] [Gen5] 6.4 PCH Configuration The items in this menu allow you to change the PCIe configurations for slots supported by the PCH. PCI Express Configuration The items in this submenu allow you to configure the PCIe Speeds for the different onboard slots supported by the PCH. The items in this submenu may vary according to your motherboard.
6.5 PCH Storage Configuration While entering Setup, the BIOS automatically detects the presence of SATA devices. The SATA Port items show Empty if no SATA device is installed to the corresponding SATA port. Scroll down to display the other BIOS items. The settings and options of this menu may vary depending on your motherboard. Please refer to the BIOS of your motherboard for the actual settings and options. SATA Controller(s) Allows you to enable or disable the SATA Device.
SATA6G_1 - SATA6G_4 Allows you to enable or disable the selected SATA port. Configuration options: [Disabled] [Enabled] SATA6G_1 - SATA6G_4 Hot Plug Designates this port as Hot Pluggable. Configuration options: [Disabled] [Enabled] 6.6 PCH-FW Configuration This item allows you to configure the firmware TPM. PTT Allows you to enable or disable PTT in SkuMgr. Configuration options: [Disabled] [Enabled] 6.
Discrete Thunderbolt(TM) Support Allows you to enable or disable Discrete Thunderbolt(TM) Support. Configuration options: [Disabled] [Enabled] • Please set Control Iommu Pre-boot Behavior in the System Agent(SA) Configuration page to [Enabled] to support DMA Protection Feature. • The following items appear only when Discrete Thunderbolt(TM) Support is set to [Enabled]. Wake From Thunderbolt(TM) Devices Allows you to enable or disable system wake from Thunderbolt(TM) devices.
PMemory Alignment Allows you to set the PMemory alignment bits. Use the <+> and <-> keys to adjust the value. Configuration options: [0] - [31] Reserved I/O Use the <+> and <-> keys to adjust the value. The values range from 0 to 60. 6.8 Trusted Computing The items in this menu allow you to configure Trusted Computing settings. Scroll down to display the other BIOS items. Security Device Support Allows you to enable or disable BIOS support for security device. O.S. will not show Security Device.
Pending operation Allows you to schedule an operation for the security device. Configuration options: [None] [TPM Clear] Your computer will reboot during restart in order to change the state of Security Device. Platform Hierarchy Allows you to enable or disable platform hierarchy. Configuration options: [Disabled] [Enabled] Storage Hierarchy Allows you to enable or disable storage hierarchy.
6.9 PCI Subsystem Settings The items in this menu allow you to configure PCI, PCI-X, and PCI Express settings. Above 4G Decoding Allows you to enable or disable 64bit capable Devices to be Decoded in Above 4G Address Space (Only if System supports 64 bit PCI Decoding). Configuration options: [Disabled] [Enabled] • Only enabled under 64bit operating system. • The following item appears only when Above 4G Decoding is set to [Enabled].
6.10 USB Configuration The items in this menu allow you to change the USB-related features. The Mass Storage Devices item shows the auto-detected values. If no USB device is detected, the item shows None. Legacy USB Support [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 system automatically detects the presence of USB devices at startup.
6.11 Network Stack Configuration The items in this menu allow you to change the Network Stack Configuration. Network stack Allows you to disable or enable the UEFI network stack. Configuration options: [Disabled] [Enabled] The following items appear only when Network Stack is set to [Enabled]. Ipv4/Ipv6 PXE Support Allows you to enable or disable the Ipv4/Ipv6 PXE boot support. Configuration options: [Disabled] [Enabled] 6.
6.13 HDD/SSD SMART Information The items in this menu allow you to view the SMART information for connected storage devices. NVM Express devices do not support SMART information. 6.14 APM Configuration The items in this menu allow you to change the advanced power management settings. Restore AC Power Loss Allows your system to go to ON state, OFF state, or both states after an AC power loss. When setting your system to [Last State], it goes to the previous state before the AC power loss.
Power On By PCI-E Allows you to enable or disable the Wake-on-LAN function of the onboard LAN controller or other installed PCI-E LAN cards. Configuration options: [Disabled] [Enabled] Power On By RTC Allows you to enable or disable the RTC (Real-Time Clock) to generate a wake event and configure the RTC alarm date. When enabled, you can set the days, hours, minutes, or seconds to schedule an RTC alarm date. Configuration options: [Disabled] [Enabled] 6.
Intel LAN Allows you to enable or disable Intel LAN. Configuration options: [Disabled] [Enabled] USB power delivery in Soft Off state (S5) Allows you to enable or disable USB power when your PC is in the S5 state. Configuration options: [Disabled] [Enabled] Connectivity mode (Wi-Fi & Bluetooth) Allows you to enable or disable Wi-Fi and Bluetooth connectivity module.
PCIEX16(G4) Mode Allows you to set the PCIEX16(G4) mode. [PCIEX4 Add-on Card] Supports PCIe x4 mode. [Dual M.2 SSD] Supports PCIe x4/x4 mode for 2 SSDs on the ROG Hyper M.2 Card. [Optane Memory on ROG Hyper M.2_1] Supports PCIe x2/x2 mode for Optane Memory at M.2_1 and x4 mode for SSD at M.2_2. [Optane Memory on ROG Hyper M.2_2] Supports PCIe x4 mode for SSD at M.2_1 and x2/x2 mode for Optane Memory at M.2_2.
6.16 Intel(R) Rapid Storage Technology The items in this menu allow you manage RAID volumes on the Intel(R) RAID Controller. • The settings and options of this menu may vary depending on the storage devices connected. Please refer to the BIOS of your motherboard for the actual settings and options. • Ensure to set the VMD configuration settings before using Intel(R) Rapid Storage Technology to create a RAID set.
7. Monitor menu The Monitor menu displays the system temperature/power status, and allows you to change the fan settings. Scroll down to display the other BIOS items. The settings and options of this menu may vary depending on your motherboard. Please refer to the BIOS of your motherboard for the actual settings and options.
Voltage and Current Monitor CPU Core Voltage, 12V Voltage, 5V Voltage, 3.3V Voltage, Memory Controller Voltage [x.xxx V] 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. CPU Core Current [xx A] The onboard hardware monitor automatically detects the current output. Select [Ignore] if you do not want to detect this item.
CPU Fan Profile Allows you to set the appropriate performance level of the assigned fan/pump. When selecting [Manual], we suggest raising your fan/pump duty to 100% if your CPU temperature exceeds 75°C. Please be noted CPU performance will throttle due to overheating with inefficient fan/pump duty. Configuration options: [Standard] [Silent] [Turbo] [Full Speed] [Manual] The following items appear only when CPU Fan Profile is set to [Standard], [Silent], [Turbo], or [Manual].
CPU Fan Middle Temperature Configure the fan/pump middle temperature to make assigned fan/pump operate at the mid. duty cycle when the source temperature is higher than the limit. We suggest raising your fan/pump duty to 100% if your CPU temperature exceeds 75°C. Please be noted CPU performance will throttle due to overheating with inefficient fan/pump duty. Use the <+> or <-> keys to adjust the middle temperature. CPU Fan Middle.
Chassis Fan 1-5 Step Up Step up allows you to adjust how quickly the fan rotation speed changes, with level 0 being an instantaneous change in speed. The higher the level, the slower the change in speed, and may also result in less noise, but this will also cause slower heat dissipation.
Chassis Fan 1-5 Min. Duty Cycle(%) Set the middle fan/pump duty cycle of the assigned fan/pump for when the source temp. is lower than the lower temperature. We suggest raising your fan/pump duty to 100% if your CPU temperature exceeds 75°C. Please be noted CPU performance will throttle due to overheating with inefficient fan/pump duty. Use the <+> or <-> keys to adjust the fan/ pump minimum duty cycle.
AIO Pump Speed Lower Limit Allows you to set the lower speed limit for assigned fan/pump. A warning message will appear when the limit is reached; the warning message will not appear if [Ignore] is selected. Configuration options: [Ignore] [200 RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM] The following items appear only when AIO Pump Profile is set to [Manual]. AIO Pump Upper Temperature Configure the fan/pump upper temperature to make assigned fan/pump operate at the max.
Chassis Intrusion Detection Support Set this item to [Enabled] to enable the chassis intrusion detection function. Configuration options: [Enabled] [Disabled] CPU Temperature LED Switch The CPU_LED will light up to indicate high CPU temperature.
8. Boot menu The Boot menu items allow you to change the system boot options. 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 will be set to [Disabled] and cannot be configured when using the integrated graphics.
Boot from Storage Devices Allows you to select the type of storage devices that you want to launch. Configuration options: [Ignore] [Legacy only] [UEFI only] Boot from PCI-E/PCI Expansion Devices Allows you to select the type of PCI-E/PCI expansion devices that you want to launch. Configuration options: [Ignore] [Legacy only] [UEFI only] 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.
Set New key Allows you to load the downloaded PK from a USB storage device. Delete key 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] 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).
DBX Management The dbx (Revoked Signature database) lists the forbidden images of db items that are no longer trusted and cannot be loaded. Save to file Allows you to save the dbx to a USB storage device. Set New key Allows you to load the downloaded dbx from a USB storage device. Append Key Allows you to load the additional dbx from a storage device for an additional db and dbx loaded management. Delete key Allows you to delete the dbx file from your system.
The following item appears only when Boot Logo Display is set to [Disabled]. Post Report Allows you to select a desired POST report waiting time or until ESC is pressed. Configuration options: [1 sec] - [10 sec] [Until Press ESC] Boot up NumLock State Allows you to select the keyboard NumLock state. Configuration options: [On] [Off] Wait For ‘F1’ If Error Allows your system to wait for the key to be pressed when error occurs.
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 access Windows® OS in Safe Mode, press after POST (Windows® 8 not supported). • To select the boot device during system startup, press when ASUS Logo appears. Boot Override These item displays the available devices.
9. Tool menu The Tool menu items allow you to configure options for special functions. Select an item then press to display the submenu. BIOS Image Rollback Support [Enabled] Support roll back your BIOS to a previous version, but this setting violates the NIST SP 800-147 requirement. [Disabled] Only support updating your BIOS to a newer version, and this setting meets the NIST SP 800-147 requirement.
9.1 ASUS EZ Flash 3 Utility This item allows you to run ASUS EZ Flash 3. When you press , a confirmation message appears. Use the left/right arrow key to select between [Yes] or [No], then press to confirm your choice. For more details, refer to section ASUS EZ Flash 3. 9.2 ASUS Secure Erase SSD speeds may lower over time as with any storage medium due to data processing. Secure Erase completely and safely cleans your SSD, restoring it to factory performance levels.
9.3 ASUS User Profile This item allows you to store or load multiple BIOS settings. Load from Profile Allows you to load the previous BIOS settings saved in the BIOS Flash. Key in the profile number that saved your BIOS settings, press , and then select Yes. • DO NOT shut down or reset the system while updating the BIOS to prevent the system boot failure! • We recommend that you update the BIOS file only coming from the same memory/ CPU configuration and BIOS version.
9.4 ASUS SPD Information This item allows you to view the DRAM SPD information. 9.5 MemTest86 This item allows you to obtain a memory diagnosis. Activate MemTest86 Press to open MemTest86 to perform and check testing results. • Please save all changes made before using MemTest86. • There will be a few seconds of loading time after pressing on this option.
9.6 ASUS Armoury Crate This item allows you to enable or disable downloading and installing of the Armoury Crate app in the Windows® OS. The Armoury Crate app can help you manage and download the latest ROG drivers and utilities for your motherboard. Download & Install ARMOURY CRATE app Configuration options: [Disabled] [Enabled] 9.7 MyASUS This item allows you to enable or disable downloading and installing of the MyASUS app in the Windows® OS.
10. Exit menu The Exit menu items allow you to load the optimal default values for the BIOS items, and save or discard your changes to the BIOS items. You can access the EZ Mode from the Exit menu. Load Optimized Defaults This option allows you to load the default values for each of the parameters on the Setup menus. When you select this option or if you press , a confirmation window appears. Select OK to load the default values.
11. Updating BIOS The ASUS website publishes the latest BIOS versions to provide enhancements on system stability, compatibility,and performance. However, BIOS updating is potentially risky. If there is no problem using the current version of BIOS, DO NOT manually update the BIOS. Inappropriate BIOS updating may result to system’s failure to boot. Carefully follow the instructions in this chapter to update your BIOS when necessary. Visit http://www.asus.
11.2 ASUS CrashFree BIOS 3 The ASUS CrashFree BIOS 3 utility is an auto recovery tool that allows you to restore the BIOS file when it fails 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 to use the newer BIOS file, download the file at https://www.asus.
ROG STRIX Z690 SERIES BIOS Manual
