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Asus STRIX Z270G GAMING Bios Manual
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Asus STRIX Z270G GAMING Bios Manual

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STRIX Z270G
GAMING
BIOS Manual

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  • Page 1 STRIX Z270G GAMING BIOS Manual...
  • Page 2 Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing.

  • Page 3: Table Of Contents

    1.6.11 USB Configuration ............... 49 Monitor menu ....................50 Boot menu ....................55 Tool menu ....................60 1.9.1 ASUS EZ Flash 3 Utility ............... 60 1.9.2 Secure Erase ................60 1.9.3 ASUS Overclocking Profile ............62 1.9.4 ASUS SPD Information ..............63 1.9.5...

  • Page 4: Knowing Bios

    BIOS Setup Knowing BIOS The new ASUS UEFI BIOS is a Unified Extensible Interface that complies with UEFI architecture, offering a user-friendly interface that goes beyond the traditional keyboard- only BIOS controls to enable a more flexible and convenient mouse input. You can easily navigate the new UEFI BIOS with the same smoothness as your operating system.

  • Page 5: Bios Setup Program

    BIOS menu screen The BIOS Setup program can be used under two modes: EZ Mode and Advanced Mode. You can change modes from Setup Mode in Boot menu or by pressing the <F7> hotkey. ROG STRIX Z270G GAMING BIOS Manual...

  • Page 6: Ez Mode

    Click to go to Advanced mode Loads optimized Search on the FAQ default settings Click to display boot devices Selects the boot device priority The boot device options vary depending on the devices you installed to the system. ROG STRIX Z270G GAMING BIOS Manual...

  • Page 7: Advanced Mode

    Language MyFavorite(F3) Qfan Control(F6) EZ Tuning Wizard(F11) Hot Keys Go back to EZ Mode Last modified settings Menu items General help Search on the FAQ Displays the CPU temperature, CPU, and memory voltage output ROG STRIX Z270G GAMING BIOS Manual...
  • Page 8 This button above the menu bar allows you to view and tweak the overclocking settings of your system. It also allows you to change the motherboard’s SATA mode from AHCI to RAID mode. Refer to section 1.2.4 EZ Tuning Wizard for more information. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 9 Move your mouse over this button to show a QR code, scan this QR code on your mobile device to connect to the BIOS FAQ web page of the ASUS support website. You can also scan the following QR code: Hot keys This button above the menu bar contains the navigation keys for the BIOS setup program.

  • Page 10: Qfan Control

    PWM Mode Select a profile to Click to apply the fan setting apply to your fans Click to undo the Click to go back to main menu changes Select to manually configure your fans ROG STRIX Z270G GAMING BIOS Manual...
  • Page 11 Select the fan that you want to configure and to view its current status. Click and drag the speed points to adjust the fans’ operating speed. Click Apply to save the changes then click Exit (ESC). ROG STRIX Z270G GAMING BIOS Manual...

  • Page 12: Ez Tuning Wizard

    Press <F11> on your keyboard or click from the BIOS screen to open EZ Tuning Wizard screen. Click OC then click Next. Select a PC scenario Daily Computing or Gaming/Media Editing, then click Next. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 13 Click RAID then click Next. • Ensure that your HDDs have no existing RAID volumes. • Ensure to connect your HDDs to Intel SATA connectors. ® Check the available storage disk drives, then click Next. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 14 After selecting the type of RAID, click Next then click Yes to continue the RAID setup. After the RAID setup is done, click Yes to exit the setup then click OK to reset your system. ROG STRIX Z270G GAMING BIOS Manual...

  • Page 15: My Favorites

    My Favorites is your personal space where you can easily save and access your favorite BIOS items. My Favorites comes with several performance, power saving, and fast boot related items by default. You can personalize this screen by adding or removing items. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 16 Configuration items such as Memory SPD Information, system time and date. Click Exit (ESC) or press <Esc> key to close Setup Tree Map screen. Go to My Favorites menu to view the saved BIOS items. ROG STRIX Z270G GAMING BIOS Manual...

  • Page 17: Main Menu

    RTC RAM. • 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]. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 18 To clear the user password, follow the same steps as in changing a user password, but leave other fields blank then select OK to continue. After you clear the password, the User Password item on top of the screen shows [Not Installed]. ROG STRIX Z270G GAMING BIOS Manual...

  • Page 19: Ai Tweaker Menu

    (XMP) Technology, choose this item to set the profiles supported by your memory modules for optimizing the system performance. The [X.M.P.] configuration option appears only when you install memory modules supporting the eXtreme Memory Profile(X.M.P.) Technology. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 20 2-core ratio limit that must be higher than or equal to the 3-core ratio limit. If you assign a value for 2-Core Ratio Limit, do not set the 1-Core Ratio Limit to [Auto]. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 21 [Keep Current Settings] Keep the current settings without changing anything. [TPU I] Applies air cooling overclocking conditions. [TPU II] Applies water cooling overclocking conditions. Ensure to use water cooling device before selecting [TPU II]. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 22 EPU Power Saving Mode The ASUS EPU (Energy Processing Unit) sets the CPU in its minimum power consumption settings. Enabling this item will apply lower CPU Core/Cache Voltage and help save energy consumption. Set this item to disabled if you are over clocking the system.
  • Page 23 Configuration options: [Auto] [0 DRAM CLOCK] [34 DRAM CLOCK] [40 DRAM CLOCK] [48 DRAM CLOCK] [60 DRAM CLOCK] [80 DRAM CLOCK] [120 DRAM CLOCK] [240 DRAM CLOCK] ODT_READ_DURATION Configuration options: [Auto] [0] - [7] ODT_READ_DELAY Configuration options: [Auto] [0] - [7] ROG STRIX Z270G GAMING BIOS Manual...
  • Page 24 RTL IOL control DRAM RTL INIT Value Configuration options: [Auto] [0] - [127] DRAM RTL (CHA DIMM0 Rank0) Configuration options: [Auto] [0] - [127] DRAM RTL (CHA DIMM0 Rank1) Configuration options: [Auto] [0] - [127] ROG STRIX Z270G GAMING BIOS Manual...
  • Page 25 Configuration options: [Auto] [0] - [127] CHB IO_Latency_offset Configuration options: [Auto] [0] - [127] IO Latency RFR delay CHA RFR delay Configuration options: [Auto] [0] - [127] CHB RFR delay Configuration options: [Auto] [0] - [127] ROG STRIX Z270G GAMING BIOS Manual...
  • Page 26 Configuration options: [Auto] [0] - [63] tWRRD_dr Configuration options: [Auto] [0] - [63] tWRRD_dd Configuration options: [Auto] [0] - [63] TWRPRE Configuration options: [Auto] [0] - [127] TRDPRE Configuration options: [Auto] [0] - [15] ROG STRIX Z270G GAMING BIOS Manual...
  • Page 27 Enable this item to enhance the stability of your system. Disable this item to enhance the DRAM overclocking capability. Configuration options: [Auto] [Enabled] [Disabled] DLLBwEn Configuration options: [Auto] [1] - [7] DRAM SPD Write Configuration options: [Enabled] [Disabled] ROG STRIX Z270G GAMING BIOS Manual...
  • Page 28 Use the <+> or <-> to adjust the value. The values range from 250 KHz to 500 KHz with an interval of 50 KHz. Do not remove the thermal module when the manual mode is selected. The thermal conditions should be monitored. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 29 [Standard] The phase control will be based on the CPU command. [Optimized] Set to the ASUS optimized phase tuning profile. [Extreme] Set to the full phase mode. DO NOT remove the thermal module when setting this item to [Extreme]. The thermal conditions should be monitored.
  • Page 30 Configuration options: [Auto] [Enabled] [Disabled] Turbo Mode Allows you to enable your processor cores to run faster than the base operating frequency when it is below power, current and specification limit. Configuration options: [Disabled] [Enabled] ROG STRIX Z270G GAMING BIOS Manual...
  • Page 31 1. The default setting is 1.25 times the power limit 1. According to Intel, the platform must be capable of supporting the duration for up to 10 msec when the turbo ratio exceeds the power limit 2. The ASUS motherboards can support the duration for a longer time.
  • Page 32 When this option is enabled, pcode will be aware of the BCLK frequency when calculating the CPU V/F curves. This is ideal for BCLK OC to avoid high voltage overrides. Uses OC Mailbox command 0x15. Configuration options: [Auto] [Disabled] [Enabled] ROG STRIX Z270G GAMING BIOS Manual...
  • Page 33 This item allows you to configure the CPU core voltage offset value. Configuration options: [Auto] [0.001] - [0.999] DRAM Voltage Configuration options: [Auto] [1.0032] - [2.0064] CPU VCCIO Voltage Configuration options: [Auto] [0.90000] - [1.80000] CPU System Agent Voltage Configuration options: [Auto] [0.70000] - [1.80000] ROG STRIX Z270G GAMING BIOS Manual...
  • Page 34 DRAM DATA REF Voltage on CHA DIMM1 Rank0 BL0-7 Configures the DRAM Data REF Voltage. Configuration options: [Auto] [0] - [63] DRAM DATA REF Voltage on CHA DIMM1 Rank1 BL0-7 Configures the DRAM Data REF Voltage. Configuration options: [Auto] [0] - [63] ROG STRIX Z270G GAMING BIOS Manual...
  • Page 35 DRAM DATA REF Voltage on CHB DIMM1 Rank0 BL0-7 Configures the DRAM Data REF Voltage. Configuration options: [Auto] [0] - [63] DRAM DATA REF Voltage on CHB DIMM1 Rank1 BL0-7 Configures the DRAM Data REF Voltage. Configuration options: [Auto] [0] - [63] ROG STRIX Z270G GAMING BIOS Manual...

  • Page 36: 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. ROG STRIX Z270G GAMING BIOS Manual...

  • Page 37: Cpu Configuration

    This item allows you to select the number of CPU cores to activate in each processor package. Configuration options: [All] [1] [2] [3] Intel Virtualization Technology When set to [Enabled], a VMM can utilize the additional hardware capabilities provided by Vanderpool Technology. Configuration options: [Disabled] [Enabled] ROG STRIX Z270G GAMING BIOS Manual...
  • Page 38 This item allows you to automatically set the CPU cores to run faster than the base operating frequency when it is below the operating power, current and temperature specification limit. Configuration options: [Enabled] [Disabled] ROG STRIX Z270G GAMING BIOS Manual...
  • Page 39 Configuration options: [Enabled] [Disabled] Execute Disable Bit Execute Disable prevents certain classes of malicious buffer overflow attacks when combined with a supporting OS (SuSE Linux 9.2, RedHat Enterprise 3 Update 3). Configuration options: [Disabled] [Enabled] ROG STRIX Z270G GAMING BIOS Manual...

  • Page 40: Platform Misc Configuration

    This item allows you to control the Active State Power Management on both CPU and PCH (platform controller hub) Both DMI link ASPM control items of the CPU and PCH sides must be enabled for the ASPM to take effect. Configuration options: [Disabled] [L1] ROG STRIX Z270G GAMING BIOS Manual...

  • Page 41: System Agent (Sa) Configuration

    PEG - ASPM This item allows you to select the ASPM state for energy-saving conditions, or use the ASUS optimized energy saving profile. Configuration options: [Disabled] [Auto] [ASPM L0s] [ASPM L1] [ASPM L0sL1] 1.6.3 System Agent (SA) Configuration VT-d Allows you to enable virtualization technology function on memory control hub.

  • Page 42: Pch Configuration

    PCI Express Configuration This item allows you to configure the PCI Express slots. PCIe Speed This item allows your system to automatically select the PCI Express port speed. Configuration options: [Auto] [Gen1] [Gen2] [Gen3] ROG STRIX Z270G GAMING BIOS Manual...

  • Page 43: Pch Storage Configuration

    SATA Port items show Empty if no SATA device is installed to the corresponding SATA port. Scroll down to display the other BIOS items. Hyper kit1 Mode Disable this option for M.2_1 devices. Enable this option for “ASUS Hyper kit” card. Configuration options: [Disabled] [Enabled] SATA Controller(s) This item allows you to enable or disable the SATA Device.

  • Page 44: Pch-Fw Configuration

    This item allows you to select the TPM device. Configuration options: [dTPM] [PTT] PTP aware OS This item allows you to select whether or not the OS will be PTP aware. Configuration options: [PTP aware] [Not PTP aware] ROG STRIX Z270G GAMING BIOS Manual...

  • Page 45: Onboard Devices Configuration

    USB Type C Power Switch [Auto] The system will automati cally detect your USB Type C devices and provide suitable power if needed. [Enabled] The USB Type C port will always provide power to your devices. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 46 The following item appears only when you set the Intel LAN Controller to [Enabled]. Intel LAN PXE Option ROM This item allows you to enable or disable the PXE Option Rom of the Intel ® controller. Configuration options: [Disabled] [Enabled] ROG STRIX Z270G GAMING BIOS Manual...

  • Page 47: Apm Configuration

    This item 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] ROG STRIX Z270G GAMING BIOS Manual...

  • Page 48: Network Stack Configuration

    This item allows you to enable or disable the Ipv4/Ipv6 PXE wake event. Configuration options: [Disabled] [Enabled] 1.6.10 HDD/SSD SMART Information This menu displays the SMART information of the connected devices. NVM Express devices do not support SMART information. ROG STRIX Z270G GAMING BIOS Manual...

  • Page 49: Usb Configuration

    Disables the XHCI Hand-off support. USB Single Port Control This item allows you to enable or disable the individual USB ports. Refer to section 1.1.2 Motherboard layout in your user manual for the location of the USB ports. ROG STRIX Z270G GAMING BIOS Manual...

  • Page 50: Monitor Menu

    Select [Ignore] if you do not want to detect this item. Q-Fan Configuration Q-Fan Tuning Click this item to automatically detect the lowest speed and configure the minimum duty cycle for each fan. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 51 Use the <+> and <-> keys to adjust the maximum CPU fan duty cycle. When the CPU temperature reaches the upper limit, the CPU fan will operate at the maximum duty cycle. CPU Middle Temperature Use the <+> and <-> keys to adjust the CPU middle temperature. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 52 [153 sec] [178 sec] [204 sec] Chassis Fan 1-2 Fan Speed Low Limit This item allows you to disable or set the chassis fan warning speed. Configuration options: [Ignore] [200 RPM] [300 RPM] [400 RPM] [500 RPM] [600 RPM] ROG STRIX Z270G GAMING BIOS Manual...
  • Page 53 Use the <+> or <-> keys to adjust the minimum Chassis Fan 1-2 duty cycle. When the temperature source is under the limit, the Chassis Fan 1-2 will operate at the minimum duty cycle. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 54 W_PUMP+ Min. Duty Cycle(%) Use the <+> or <-> keys to adjust the minimum W_PUMP+ duty cycle. When the CPU temperature is under the limit, the W_PUMP+ will operate at the minimum duty cycle. ROG STRIX Z270G GAMING BIOS Manual...

  • Page 55: Boot Menu

    This item allows you to select a 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 only works when set under normal boot. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 56 Configuration options: [Disabled] [Enabled] Option ROM Messages [Enabled] The Option ROM Messages will be shown during the POST. [Disabled] Only the ASUS logo will be shown during the POST. Interrupt 19 Capture [Enabled] Execute the trap right away. [Disabled] Execute the trap during legacy boot.
  • Page 57 This item allows you to save the PK (Platform Keys) to a USB storage device. PK Management The Platform Key (PK) locks and secures the firmware from any permissible changes. The system verifies the PK before your system enters the OS. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 58 This item allows you to load the downloaded db from a USB storage device. Append Key This item allows you to load the additional db from a storage device for an additional db and dbx loaded management. ROG STRIX Z270G GAMING BIOS Manual...
  • Page 59 ® ® supported). • To select the boot device during system startup, press <F8> when ASUS Logo appears. Boot Override These item displays the available devices. The number of device items that appear on the screen depends on the number of devices installed in the system. Click an item to start booting from the selected device.

  • Page 60: Tool Menu

    1.9.1 ASUS EZ Flash 3 Utility This item allows you to run ASUS EZ Flash 3. When you press <Enter>, a confirmation message appears. Use the left/right arrow key to select between [Yes] or [No], then press <Enter> to confirm your choice.
  • Page 61 Check the ASUS support site for a full list of SSDs tested with Secure Erase. The drive may become unstable if you run Secure Erase on an incompatible SSD. • The time to erase the contents of your SSD may take a while depending on its size.

  • Page 62: Asus Overclocking Profile

    Key in a profile number from one to eight, press <Enter>, and then select Yes. Load/Save Profile from/to USB Drive This item allows you to load or save profile from your USB drive, load and save profile to your USB drive. ROG STRIX Z270G GAMING BIOS Manual...

  • Page 63: Asus Spd Information

    This item displays the information and recommended configuration for the PCIE slots that the graphics card is installed in your system. This feature is only supported on selected ASUS graphics cards. GPU Post This item displays the information and recommended configuration for the PCIE slots that the graphics card is installed in your system.

  • Page 64: Exit Menu

    <Esc>, a confirmation window appears. Select Yes to discard changes and exit. Launch EFI Shell from USB drives This option allows you to attempt to launch the EFI Shell application (shellx64.efi) from one of the available filesystem devices. ROG STRIX Z270G GAMING BIOS Manual...

  • Page 65: Updating Bios

    ® ASUS EZ Flash 3: Updates the BIOS using a USB flash drive. ASUS CrashFree BIOS 3: Restores the BIOS using the motherboard support DVD or a USB flash drive when the BIOS file fails or gets corrupted. 1.11.1...

  • Page 66: Asus Ez Flash 3

    1.11.2 ASUS EZ Flash 3 ASUS EZ Flash 3 allows you to download and update to the latest BIOS through the Internet without having to use a bootable floppy disk or an OS-based utility. Updating through the Internet varies per region and Internet conditions. Check your local Internet connection before updating through the Internet.
  • Page 67 To update the BIOS by Internet: Enter the Advanced Mode of the BIOS setup program. Go to the Tool menu to select ASUS EZ Flash 3 Utility and press <Enter>. Select via Internet. Press the Left/Right arrow keys to select an Internet connection method, and then press <Enter>.

  • Page 68: Asus Crashfree Bios 3

    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.com/support/ and save it to a USB flash drive.

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