BIOS Manual Motherboard ROG STRIX Z590 Series
E18571 First Edition July 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. 2. Knowing BIOS................................................................................................ 4 BIOS setup program...................................................................................... 5 2.1 Advanced Mode.............................................................................. 6 2.2 EZ Mode....................................................................................... 10 2.3 Qfan Control.........................................................
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 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: 12 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 match exactly 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 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.
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] [Manual] Loads the optimal settings for the system. When the manual mode is selected, the BCLK (base clock) frequency can be assigned manually. If you install memory modules supporting the eXtreme Memory Profile (XMP) Technology, choose this item to load the DIMM’s default XMP memory timings (CL, TRCD, TRP, TRAS) with BCLK frequency and other memory parameters optimized by ASUS.
ASUS MultiCore Enhancement [Auto - Lets BIOS Optimize] This item allows you to use ASUS optimized core ratio Turbo settings at default processor speeds. [Disabled - Enforce All limits] This item allows you to use Intel default Turbo core ratio settings. [Enabled - Remove All limits] This item allows you to use optimized power and current thresholds for maintaining maximum performance. SVID Behavior Allows you to program the CPU’s SVID behavior based on the CPU’s quality.
AVX512 Ratio Offset Value Specifies number of bins to decrease AVX ratio vs. Per-Core Ratio. AVX is a more stressful workload, it is helpful to lower the AVX ratio to ensure maximum possible ratio for SSE workloads. Uses Mailbox MSR 0x150, cmd 0x1B. Range 0-31. 0=No offset. Use the <+> or <-> to adjust the value.
The following items appear only when CPU Core Ratio is set to [By Core Usage]. 1-Core Ratio Limit / 2-Core Ratio Limit / 3-Core Ratio Limit / 4-Core Ratio Limit / 5-Core Ratio Limit / 6-Core Ratio Limit The N-core ratio limit must be higher than or equal to the (N+1)-core ratio limit. (N stands for the number of CPU cores) The core ratio limit cannot be set to [Auto] when the core number is lower than N. The biggest core’s ratio limit must be lower than or equal to the second biggest core’s ratio limit.
DRAM Timing Control The sub-items 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. You can also select various Memory Presets to load settings suitably tuned for some memory modules. Changing the values in this menu may cause the system to become unstable! If this happens, revert to the default settings.
DRAM WRITE Recovery Time Configuration options: [Auto] [1] - [31] DRAM READ to PRE Time Configuration options: [Auto] [1] - [15] DRAM FOUR ACT WIN Time Configuration options: [Auto] [1] - [63] DRAM WRITE to READ Delay Configuration options: [Auto] [1] - [15] DRAM WRITE to READ Delay L Configuration options: [Auto] [1] - [15] DRAM WRITE to READ Delay S Configuration options: [Auto] [1] - [15] DRAM CKE Minimum Pulse Width Configuration options: [Auto] [0] - [15] DRAM Write Latency Configuration options: [Auto
ODT_WRITE_DELAY Configuration options: [Auto] [0] - [7] Data Rising Slope Configuration options: [Auto] [0] - [15] Data Rising Slope Offset Configuration options: [Auto] [0] - [1] Cmd Rising Slope Configuration options: [Auto] [0] - [15] Cmd Rising Slope Offset Configuration options: [Auto] [0] - [1] Ctl Rising Slope Configuration options: [Auto] [0] - [15] Ctl Rising Slope Offset Configuration options: [Auto] [0] - [1] Clk Rising Slope Configuration options: [Auto] [0] - [15] Clk Rising Slope Offset Config
DRAM RTL (CHA DIMM0 Rank1) Configuration options: [Auto] [0] - [127] DRAM RTL (CHA DIMM1 Rank0) Configuration options: [Auto] [0] - [127] DRAM RTL (CHA DIMM1 Rank1) Configuration options: [Auto] [0] - [127] DRAM RTL (CHB DIMM0 Rank0) Configuration options: [Auto] [0] - [127] DRAM RTL (CHB DIMM0 Rank1) Configuration options: [Auto] [0] - [127] DRAM RTL (CHB DIMM1 Rank0) Configuration options: [Auto] [0] - [127] DRAM RTL (CHB DIMM1 Rank1) Configuration options: [Auto] [0] - [127] DRAM IOL (CHA DIMM0 Rank0) Co
Memory Training Algorithms The items in this menu allows you to enable or disable different Memory Training Algorithms.
Comp Optimization Training* Configuration options: [Auto] [Disabled] [Enabled] Read Equalization Training* Configuration options: [Auto] [Disabled] [Enabled] Read Amplifier Training* Configuration options: [Auto] [Disabled] [Enabled] Write Timing Centering 2D Configuration options: [Auto] [Disabled] [Enabled] Read Timing Centering 2D Configuration options: [Auto] [Disabled] [Enabled] Command Voltage Centering Configuration options: [Auto] [Disabled] [Enabled] Write Voltage Centering 2D Configuration options
CMD Slew Rate Training Configuration options: [Auto] [Disabled] [Enabled] CMD Drive Strength and Tx Equalization Configuration options: [Auto] [Disabled] [Enabled] Command Normalization Configuration options: [Disabled] [Enabled] Early DQ Write Drive Strength and Equalization Training Configuration options: [Disabled] [Enabled] Read Voltage Centering 1D Configuration options: [Disabled] [Enabled] Dimm ODT CA Training Configuration options: [Disabled] [Enabled] Duty Cycle Correction Configuration options: [A
tRDRD_dd Configuration options: [Auto] [0] - [63] tRDWR_dr Configuration options: [Auto] [0] - [63] tRDWR_dd Configuration options: [Auto] [0] - [63] tWRWR_dr Configuration options: [Auto] [0] - [63] tWRWR_dd Configuration options: [Auto] [0] - [63] tWRRD_dr Configuration options: [Auto] [0] - [63] tWRRD_dd Configuration options: [Auto] [0] - [63] TWRPRE Configuration options: [Auto] [0] - [255] TRDPRE Configuration options: [Auto] [0] - [31] tREFIX9 Configuration options: [Auto] [0] - [127] OREF_RI Configu
DRAM CLK Period Allows you to set the DRAM clock period. Configuration options: [Auto] [1] - [95] Memory Scrambler Set this item to enable or disable memory scrambler support. Configuration options: [Disabled] [Enabled] Extended Bank Hashing Set this item to enable or disable extended bank hashing for potential performance improvement. Configuration options: [Auto] [Disabled] [Enabled] Channel 0 Control Allows you to enable or disable the Channel 0 DIMM slots.
Digi+ VRM Voltage Monitor Configuration options: [Die Sense] [Socket Sense] CPU Load-line Calibration Load-line is defined by Intel® specification and affects CPU power voltage. The CPU working voltage decreases proportionally to CPU loading. Higher load-line calibration could get higher voltage and good overclocking performance, but increases the CPU and VRM thermal conditions.
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. [T. Probe] Select to set the VRM thermal balance mode.
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.
The following item appears only when DRAM Switching Frequency is set to [Manual]. Fixed DRAM Switching Frequency(KHz) This item will affect the overclocking range and system stability. Configure a higher frequency to increase the overclocking range of a lower frequency to enhance the system stability. Use the <+> or <-> to adjust the value. The values range from 300 KHz to 500 KHz with an interval of 50 KHz. VCCSA Load-line Calibration Allows you to set the CPU System Agent Load-line Calibration.
Auto Voltage Caps CPU Core Auto Voltage Cap Setting this to a specific value will set a ceiling for VCore 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] [0.700] - [1.700] CPU VCCIO Auto Voltage Cap Setting this to a specific value will set a ceiling for CPU VCCIO Auto Voltage. Configuration options: [Auto] [0.900] - [1.
Long Duration Package Power Limit An Intel parameter known as [power limit 1] and specified in Watts. The default 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. Configuration options: [Auto] [1] - [4095] Package Power Time Window An Intel parameter of [power limit 1] and specified in seconds. The applied value indicates how long the Turbo ratio can be active when TDP is exceeded.
1-Core - 6-Core Active Configuration options: [Auto] [Enabled] The following items appear only when 1-Core - 6-Core Active is set to [Enabled]. Temperature A Package passing this temperature threshold will engage the negative ratio offset specified in Negative Ratio Offset A. Unit in Degree Celsius. Configuration options: [Auto] [1] - [115] Negative Ratio Offset A This will be the potential negative offset to respective ratio when package temperature rises above threshold specified in Temperature A.
Tweaker’s Paradise Realtime Memory Timing Allows you to enable or disable realtime memory timing. When set to [Enabled], the system will allow performing realtime memory timing changes after MRC_DONE. Configuration options: [Disabled] [Enabled] FCLK Frequency for Early Power On Allows you to set the FCLK Frequency for Early Power On. Configuration options: [Normal (800 MHz)] [1GHz] [400 MHz] [Auto] 1 GHz is not supported for ULT/ULX SKUs.
CPU Standby Voltage Allows you to configure the voltage for the CPU Standby. The values range from 0.800V to 1.800V with an interval of 0.010V when LN2 is disabled, and range from 0.800V to 2.100V with an interval of 0.010V when LN2 is enabled. Configuration options: [Auto] [0.800] - [1.800] (LN2 disabled) / [2.100] (LN2 enabled) PVD Ratio Threshold For the Core Domain PLL, the threshold to switch to lower post divider is 15 by default.
Ring Down Bin Allows you to enable or disable the Ring Downbin feature. This option is defaulted to [Enabled]. [Auto] Set to default. [Disabled] CPU will not down bin the ring ratio and the requested ring ratio limit will be observed. [Enabled] CPU will down bin the ring ratio, which means the requested max ring ratio may not be observed. Please use caution when disabling this feature as it may result in overvoltaging of the CPU. Min.
The following item appears only when CPU Core/Cache Voltage is set to [Offset Mode]. 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 0.0635V with an interval of 0.005V. Configuration options: [Auto] [0.005] - [0.635] The following items appear only when CPU Core Voltage is set to [Adaptive Mode].
CPU VCCSA Voltage Override Use the <+> or <-> to adjust the value. The values range from 0.700V to 1.800V with an interval of 0.001V with LN2 disabled, and range from 0.700V to 2.200V with an interval of 0.001V with LN2 enabled. Configuration options: [Auto] [0.700] - [1.800] (LN2 disabled) / [2.200] (LN2 enabled) 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.
DRAM DATA REF Voltage on CHA DIMM1 Rank1 BL0-7 Configures the DRAM Data REF Voltage. Configuration options: [Auto] [0] - [63] DRAM DATA REF Voltage on CHB DIMM0 Rank0 BL0-7 Configures the DRAM Data REF Voltage. Configuration options: [Auto] [0] - [63] DRAM DATA REF Voltage on CHB DIMM0 Rank1 BL0-7 Configures the DRAM Data REF Voltage. Configuration options: [Auto] [0] - [63] DRAM DATA REF Voltage on CHB DIMM1 Rank0 BL0-7 Configures the DRAM Data REF Voltage.
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.
6.1 Platform Misc Configuration The items in this menu allow you to configure the platform-related features. 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 Gen3 ASPM Control Allows you to set the DMI Gen3 ASPM Control Support. L0s is not supported for DMI ASPM for CML/TGP. Configuration options: [Disabled] [Auto] [ASPM L1] DMI Gen3 ASPM Allows you to set the DMI Gen3 ASPM Support. L0s is not supported for DMI ASPM for CML/TGP. 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.
6.2 CPU Configuration The items in this menu show the CPU-related information that the BIOS automatically detects. The items in this menu may vary based on the CPU installed. Scroll down to display other BIOS items. Tcc Offset Time Window Allows you to set the TCC Offset Time Window for Running Average Temperature Limit (RATL) feature. RATL allows setting an average max thermal temperature.
Active Processor Cores Allows you to select the number of CPU cores to activate in each processor package. Configuration options: [All] [1] - [5] Overclocking Lock Allows you to enable or disable Overclocking Lock (BIT 20) in FLEX_RATIO(194) MSR. Configuration options: [Disabled] [Enabled] Hyper-Threading Allows a hyper-threading processor to appear as two logical processors, allowing the operating system to schedule two threads or processes simultaneously. For only one thread per activated core.
The following items appear only when Acoustic Noise Mitigation is set to [Enabled]. Pre Wake Time This option will allow you to set the maximum Pre Wake randomization time in micro ticks. This is for acoustic noise mitigation Dynamic Periodicity Alteration (DPA) tuning. Configuration options: [0] - [255] Ramp Up Time This option will allow you to set the maximum Ramp Up randomization time in micro ticks. This is for acoustic noise mitigation Dynamic Periodicity Alteration (DPA) tuning.
CPU C-states Allows you to enable or disable CPU Power Management. Allows CPU to go to C states when it’s not 100% utilized. Configuration options: [Auto] [Disabled] [Enabled] The following items appear only when CPU C-states is set to [Enabled]. Enhanced C-States Allows you to enable or disable C1E. When enabled, CPU will switch to minimum speed when all cores enter C-State. Configuration options: [Disabled] [Enabled] CPU C6 Report Allows you to disable or enable the CPU C6 report to the operating system.
6.3 System Agent (SA) Configuration VT-d Allows you to enable virtualization technology function on memory control hub. Configuration options: [Disabled] [Enabled] 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).
PCI Express Configuration Allows you to configure the PCI Express Configuration settings. The items in this submenu may vary depending on your motherboard model. Please refer to the BIOS on your motherboard for the actual settings and options. M.2_1 Link Speed Allows you to configure the M.2_1 slot link speed. Configuration options: [Auto] [Gen1] [Gen2] [Gen3] [Gen4] M.2_2 Link Speed Allows you to configure the M.2_2 slot link speed.
6.4 PCH Configuration PCI Express Configuration Allows you to configure the PCI Express slots. PCIe Speed Allows your system to automatically select the PCI Express port speed. Configuration options: [Auto] [Gen1] [Gen2] [Gen3] 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 following items appear only when SATA Controller(s) is set to [Enabled]. SATA Mode Selection Allows you to set the SATA configuration. [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.
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] 6.7 Thunderbolt(TM) Configuration The items in this menu allow you to configure Thunderbolt settings. The settings and options of this menu may vary depending on your motherboard model. Discrete Thunderbolt(TM) Support Allows you to enable or disable Discrete Thunderbolt(TM) Support.
Native OS security for TBT Allows you to enable or disable Native security solution for Thunderbolt hosts. Configuration options: [Disabled] [Enabled] Discrete Thunderbolt(TM) Configuration The items in this submenu allow you to configure Discrete Thunderbolt(TM) related configurations. Thunderbolt Usb Support Allows you to boot from USB devices which is present behind Thunderbolt.
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. Thunderbolt(TM) OS select Windows 10 Thunderbolt support Allows you to specify Windows 10 Thunderbolt support level. [Enable + RTD3] OS Native support plus RTD3. [Disabled] No OS native support. 6.
SHA256 PCR Bank will only be available if SHA-1 PCR Bank is set to [Disabled]. SHA256 PCR Bank Allows you to enable or disable the SHA256 PCR Bank. Configuration options: [Disabled] [Enabled] 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.
6.9 PCI Subsystem Settings The items in this menu allow you to configure PCI, PCI-X, and PCI Express settings. Above 4G Decoding This option 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: [Enabled] [Disabled] • 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] [Disabled] Your system supports the USB devices in legacy operating systems. Your USB devices can be used for BIOS setup only and cannot be recognized in the boot devices list. Your system automatically detects the presence of USB devices at startup.
6.11 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] 6.12 NVMe Configuration This menu displays the NVMe controller and Drive information of the connected devices.
6.13 Onboard Devices Configuration The items in this menu allow you to change the onboard devices settings. Scroll down to view the other BIOS items. The settings and options of this menu may vary depending on your motherboard model. USB Audio Configuration options: [Disabled] [Enabled] 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.
LED lighting When system is in working state Allows you to turn the RGB LED lighting on or off when the system is in the working state. [All On] RGB LEDs and Functional LEDs will behave normally. [Stealth Mode] All LEDs will be disabled. [Aura Only] RGB LEDs will light up, while all functional LEDs will be disabled. [Aura Off] Functional LEDs behave normally, while RGB LEDs will be disabled. The RGB Header(s) and Addressable Header(s) will only work under the S0 (working) state.
6.14 APM Configuration 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. Configuration options: [Power On] [Power Off] [Last State] Max Power Saving Configuration options: [Disabled] [Enabled] ErP Ready Allows you to switch off some power at S4+S5 or S5 to get the system ready for ErP requirement.
6.15 HDD/SSD SMART Information This menu displays the SMART information of the connected devices. NVM Express devices do not support SMART information.
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 model.
Voltage and Current Monitor CPU Core Voltage, 12V Voltage, 5V Voltage, 3.3V Voltage, DRAM 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 Duty Cycle (%) Set the middle fan/pump duty cycle of the assigned fan/pump for when the source temp. exceeds the middle 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 middle duty cycle. CPU Fan Lower Temperature Configure the fan/pump lower temperature to make assigned fan/pump operate at the min.
Chassis Fan Step Up Allows you to set the value of the fan/pump step up. Configuration options: [0 sec] [12 sec] [25 sec] [51 sec] [76 sec] [102 sec] [127 sec] [153 sec] [178 sec] [204 sec] Chassis Fan Down Allows you to set the value of the fan/pump step down. Configuration options: [0 sec] [12 sec] [25 sec] [51 sec] [76 sec] [102 sec] [127 sec] [153 sec] [178 sec] [204 sec] Chassis Fan Speed Low Limit Allows you to set the lower speed limit for assigned fan/pump.
Chassis Fan 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 CPU Fan Profile is set to [Manual]. AIO Pump Upper Temperature Configure the fan/pump upper temperature to make assigned fan/pump operate at the max.
VRM Heatsink Fan Q-Fan Control VRM Heatsink 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.
VRM Heatsink Fan Middle Duty Cycle (%) Set the middle fan/pump duty cycle of the assigned fan/pump for when the source temp. exceeds the middle 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 middle duty cycle.
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. Launch CSM [Disabled] [Enabled] Disable the CSM to fully support the non-UEFI driver add-on devices or the Windows® UEFI mode.
Boot from Storage Devices Allows you to select the type of storage devices that you want to launch. Configuration options: [Ignore] [UEFI only] [Legacy 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] [UEFI only] [Legacy 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.
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). Key-exchange Key (KEK) refers to Microsoft® Secure Boot Key-Enrollment Key (KEK).
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 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] and [No], then press to confirm your choice. For more details, refer to the 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 BIOS settings that are saved in the BIOS Flash. Key in the profile number with your preferred 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 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.
9.6 MyASUS This item allows you to enable or disable downloading and installing of the MyASUS app in the Windows® OS. Download & Install MyASUS service & app Configuration options: [Disabled] [Enabled] 9.7 MemTest86 This item allows you to obtain a memory diagnosis. Activate MemTest86 Press to open MemTest86 to perform and check testing results. 86 • Please save all changes made before using MemTest86. • There will be a few seconds of loading time after pressing on this option.
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 Z590 Series BIOS Manual
