Asus STRIX Z270E GAMING BIOS Manual

STRIX Z270E GAMING

BIOS Manual

Motherboard

E12349 First Edition

January 2017

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ASUS STRIX Z270E GAMING BIOS Manual

Contents

1.1 Knowing BIOS ............................................................................................... 4

1.2 BIOS setup program ..................................................................................... 5

1.2.1 EZ Mode......................................................................................... 6

1.2.2 Advanced Mode ............................................................................. 7

1.2.3 QFan Control................................................................................ 10

1.2.4 EZ Tuning Wizard ........................................................................ 12

1.3 My Favorites ................................................................................................ 15

1.4 Main menu ................................................................................................... 17

1.5 Ai Tweaker menu ......................................................................................... 19

1.6 Advanced menu .......................................................................................... 36

1.6.1 CPU Conguration ....................................................................... 37

1.6.2 Platform Misc Conguration ......................................................... 40

1.6.3 System Agent (SA) Conguration ................................................ 41

1.6.4 PCH Conguration ....................................................................... 42

1.6.5 PCH Storage Conguration.......................................................... 43

1.6.6 PCH-FW Conguration ................................................................ 45

1.6.7 Onboard Devices Conguration ................................................... 46

1.6.8 APM Conguration ....................................................................... 49

1.6.9 Network Stack Conguration........................................................ 50

1.6.10 HDD/SSD SMART Information .................................................... 50

1.6.11 USB Conguration ....................................................................... 51

1.7 Monitor menu .............................................................................................. 52

1.8 Boot menu ................................................................................................... 60

1.9 Tool menu .................................................................................................... 65

1.9.1 ASUS EZ Flash 3 Utility ............................................................... 65

1.9.2 Secure Erase ............................................................................... 66

1.9.3 ASUS Overclocking Prole .......................................................... 67

1.9.4 ASUS SPD Information ................................................................ 68

1.9.5 Graphics Card Information ........................................................... 68

1.10 Exit menu ..................................................................................................... 69

1.11 Updating BIOS ............................................................................................. 70

1.11.1 EZ Update .................................................................................... 70

1.11.2 ASUS EZ Flash 3 ......................................................................... 71

1.11.3 ASUS CrashFree BIOS 3 ............................................................. 73

ASUS STRIX Z270E GAMING BIOS Manual

BIOS Setup

1.1 Knowing BIOS

The new ASUS UEFI BIOS is a Unied 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 exible 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 specied.

BIOS (Basic Input and Output System) stores system hardware settings such as storage

device conguration, overclocking settings, advanced power management, and boot device conguration that are needed for system startup in the motherboard CMOS. In

normal circumstances, the default BIOS settings apply to most conditions to ensure optimal performance. DO NOT change the default BIOS settings except in the following circumstances:

• An error message appears on the screen during the system bootup and requests you

to run the BIOS Setup.

• You have installed a new system component that requires further BIOS settings or

update.

Inappropriate BIOS settings may result to instability or boot failure. We strongly

recommend that you change the BIOS settings only with the help of a trained service personnel.

• When downloading or updating the BIOS le, rename it as Z270SE.CAP for this

motherboards.

• BIOS settings and options may vary due to different BIOS release versions. Please

refer to the latest BIOS version for settings and options.

ASUS STRIX Z270E GAMING BIOS Manual

1.2 BIOS setup program

Use the BIOS Setup to update the BIOS or congure its parameters. The BIOS screen

includes 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 <Delete> or <F2> during the Power-On Self Test (POST). If you do not press <Delete> or <F2>, POST continues with its routines.

Entering BIOS Setup after POST

To enter BIOS Setup after POST:

• Press <Ctrl>+<Alt>+<Delete> simultaneously.

• Press the reset button on the system chassis.

• Press the power button to turn the system off then back on. Do this option only if you failed to enter BIOS Setup using the rst two options.

After doing either of the three options, press <Delete> key to enter BIOS.

• The BIOS setup screens shown in this section are for reference purposes only, and

may not exactly match what you see on your screen.

• Ensure that a USB mouse is connected to your motherboard if you want to use the

mouse to control the BIOS setup program.

• If the system becomes unstable after changing any BIOS setting, load the default

settings to ensure system compatibility and stability. Select the Load Optimized Defaults item under the Exit menu or press hotkey <F5>. See section 1.10 Exit menu for details.

• If the system fails to boot after changing any BIOS setting, try to clear the CMOS and

reset the motherboard to the default value. See section 1.1.6 Jumpers in your user manual for information on how to erase the RTC RAM.

• The BIOS setup program does not support Bluetooth devices.

BIOS menu screen

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

ASUS STRIX Z270E GAMING BIOS Manual

1.2.1 EZ Mode

By default, the EZ Mode screen appears when you enter the BIOS setup program. 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 or press the <F7> hotkey for the advanced BIOS settings.

The default screen for entering the BIOS setup program can be changed. Refer to the

Setup Mode item in section Boot menu for details.

Displays the system properties of the selected mode.

Displays the CPU/motherboard temperature, CPU voltage output, CPU/chassis/power fan speed, and SATA information

Selects the display language of the BIOS setup program

Click < or > to switch EZ System Tuning modes

Creates storage RAID and configures system overclocking

Enables or disables the SATA RAID mode

for Intel Rapid Storage Technology

Displays the CPU Fan’s speed. Click the button to manually tune the fans

The boot device options vary depending on the devices you installed to the system.

Loads optimized

default settings

Saves the changes and resets the system

Click to go to Advanced mode

Click to display boot devices

Selects the boot device priority

Search on the FAQ

ASUS STRIX Z270E GAMING BIOS Manual

1.2.2 Advanced Mode

The Advanced Mode provides advanced options for experienced end-users to congure the BIOS settings. The gure below shows an example of the Advanced Mode. Refer to the following sections for the detailed congurations.

To switch from EZ Mode to Advanced Mode, click Advanced Mode(F7) or press the <F7> hotkey.

Configuration fields

Menu bar

Language

Menu items

MyFavorite(F3)

General help

Qfan Control(F6)

Last modified settings

EZ Tuning Wizard(F11)

Go back to EZ Mode

Displays the CPU temperature,

CPU, and memory voltage output

Scroll barPop-up Menu

Hot Keys

Search on the FAQ

ASUS STRIX Z270E GAMING BIOS Manual

Menu bar

The menu bar on top of the screen has the following main items:

My Favorites Main Ai Tweaker Advanced

Monitor

Boot Tool Exit

For saving the frequently-used system settings and conguration.

For changing the basic system conguration

For changing the overclocking settings

For changing the advanced system settings

For displaying the system temperature, power status, and changing the fan settings.

For changing the system boot conguration

For conguring options for special functions

For selecting the exit options and loading default settings

Menu items

The highlighted item on the menu bar displays the specic items for that menu. For example,

selecting Main shows the Main menu items.

The other items (My Favorites, Ai Tweaker, Advanced, Monitor, Boot, Tool, and Exit) on the menu bar have their respective menu items.

Submenu items

A greater than sign (>) before each item on any menu screen means that the item has a submenu. To display the submenu, select the item and press <Enter>.

Language

This button above the menu bar contains the languages that you can select for your BIOS. Click this button to select the language that you want to display in your BIOS screen.

My Favorites (F3)

This button above the menu bar shows all BIOS items in a Tree Map setup. Select frequentlyused BIOS settings and save it to MyFavorites menu.

Refer to section 1.3 My Favorites for more information.

QFan Control (F6)

This button above the menu bar displays the current settings of your fans. Use this button to manually tweak the fans to your desired settings.

Refer to section 1.2.3 QFan Control for more information.

EZ Tuning Wizard (F11)

This button above the menu bar allows you to view and tweak the overclocking settings of your system. It also allows you to change the motherboard’s SATA mode from AHCI to RAID mode.

Refer to section 1.2.4 EZ Tuning Wizard for more information.

ASUS STRIX Z270E GAMING BIOS Manual

Search on FAQ

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. Use the navigation keys to select items in the menu and change the settings.

Scroll bar

A scroll bar appears on the right side of a menu screen when there are items that do not t

on the screen. Press the Up/Down arrow keys or <Page Up> / <Page Down> keys to display the other items on the screen.

General help

At the bottom of the menu screen is a brief description of the selected item. Use <F12> key to capture the BIOS screen and save it to the removable storage device.

Configuration fields

These elds show the values for the menu items. If an item is user-congurable, you can change the value of the eld opposite the item. You cannot select an item that is not user-congurable.

A congurable eld is highlighted when selected. To change the value of a eld, select it and

press <Enter> to display a list of options.

Last Modified button

This button shows the items that you last modied and saved in BIOS Setup.

ASUS STRIX Z270E GAMING BIOS Manual

1.2.3 QFan Control

The QFan Control allows you to set a fan prole or manually congure the operating speed of

your CPU and chassis fans.

Click to select a fan to be configured

Select a profile to

apply to your fans

Click to activate

Click to apply the fan setting

Click to undo the changes

PWM Mode

Click to go back to main menu

Click to activate DC Mode

Select to manually configure your fans

ASUS STRIX Z270E GAMING BIOS Manual

Configuring fans manually

Select Manual from the list of proles to manually congure your fans’ operating speed.

Speed points

Select to manually

configure your fans

To congure your fans:

1. Select the fan that you want to congure 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).

ASUS STRIX Z270E GAMING BIOS Manual

1.2.4 EZ Tuning Wizard

EZ Tuning Wizard allows you to easily overclock your CPU and DRAM, computer usage, and

CPU fan to their best settings. You can also set RAID in your system using this feature.

RAID setupOC setup

OC Tuning

To start OC Tuning:

1. Press <F11> on your keyboard or click

EZ Tuning Wizard screen.

2. Click OC

then click Next.

3. Select a PC scenario Daily Computing or Gaming/Media Editing, then click Next.

from the BIOS screen to open

ASUS STRIX Z270E GAMING BIOS Manual

4. Select a Main Cooling System BOX cooler, Tower cooler, Water cooler, or I’m not sure, then click Next.

5. After selecting the Main Cooling System, click Next then click Yes to start the OC Tuning.

Creating RAID

To create RAID:

1. Press <F11> on your keyboard or click

EZ Tuning Wizard screen.

2. Click RAID

then click Next.

• Ensure that your HDDs have no existing RAID volumes.

• Ensure to connect your HDDs to Intel

SATA connectors.

3. Check the available storage disk drives, then click Next.

from the BIOS screen to open

ASUS STRIX Z270E GAMING BIOS Manual

4. Select the type of storage for your RAID, Easy Backup or Super Speed, then click Next.

a. For Easy Backup, click Next then select from Easy Backup (RAID 1) or Easy

Backup (RAID 10).

You can only select Easy Backup (RAID 10) if you connect four (4) HDDs.

b. For Super Speed, click Next then select from Super Speed (RAID 0) or Super

Speed (RAID 5).

5. After selecting the type of RAID, click Next then click Yes to continue the RAID setup.

6. After the RAID setup is done, click Yes to exit the setup then click OK to reset your system.

ASUS STRIX Z270E GAMING BIOS Manual

1.3 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.

ASUS STRIX Z270E GAMING BIOS Manual

Adding items to My Favorites

To add BIOS items:

1. Press <F3> on your keyboard or click MyFavorites(F3) 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 as favorite from the submenu panel and click

You cannot add the following items to My Favorite items:

• Items with submenu options.

• User-managed items such as language and boot order.

• Conguration items such as Memory SPD Information, system time and date.

or press <Enter> on your keyboard.

4. Click Exit (ESC) or press <Esc> key to close Setup Tree Map screen.

5. Go to My Favorites menu to view the saved BIOS items.

ASUS STRIX Z270E GAMING BIOS Manual

1.4 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 section 1.1.6 Jumpers in your user manual for information on how to erase the 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].

ASUS STRIX Z270E GAMING BIOS Manual

Administrator Password

If you have set an administrator password, we recommend that you enter the administrator password for accessing the system. Otherwise, you might be able to see or change only

selected elds in the BIOS setup program.

To set an administrator password:

1. Select the Administrator Password item and press <Enter>.

2. From the Create New Password box, key in a password, then press <Enter>.

3. Re-type to conrm the password then select OK.

To change an administrator password:

1. Select the Administrator Password item and press <Enter>.

2. From the Enter Current Password box, key in the current password, then press

<Enter>.

3. From the Create New Password box, key in a new password, then press <Enter>.

4. Re-type to conrm the password then select OK.

To clear the administrator password, follow the same steps as in changing an administrator password, but leave other elds blank then select OK to continue. After you clear the password, the Administrator Password item on top of the screen shows [Not Installed].

User Password

If you have set a user password, you must enter the user password for accessing the system. The User Password item on top of the screen shows the default [Not Installed]. After you set a password, this item shows [Installed].

To set a user password:

1. Select the User Password item and press <Enter>.

2. From the Create New Password box, key in a password, then press <Enter>.

3. Re-type to conrm the password then select OK.

To change a user password:

1. Select the User Password item and press <Enter>.

2. From the Enter Current Password box, key in the current password, then press

<Enter>.

3. From the Create New Password box, key in a new password, then press <Enter>.

4. Re-type to conrm the password then select OK.

To clear the user password, follow the same steps as in changing a user password, but

leave other elds blank then select OK to continue. After you clear the password, the User Password item on top of the screen shows [Not Installed].

ASUS STRIX Z270E GAMING BIOS Manual

1.5 Ai Tweaker menu

The Ai Tweaker menu items allow you to congure overclocking-related items.

Be cautious when changing the settings of the Ai Tweaker menu items. Incorrect eld

values can cause the system to malfunction.

The conguration 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

This item allows you to select the CPU overclocking options to achieve the desired CPU

internal frequency. Select any of these preset overclocking conguration options:

[Auto] Loads the optimal settings for the system.

[Manual] Automatically optimizes the CPU ratio and BCLK frequency.

[XMP] If you install memory modules supporting the eXtreme Memory Prole

(XMP) Technology, choose this item to set the proles supported by your memory modules for optimizing the system performance.

The [X.M.P.] conguration option appears only when you install memory modules supporting the eXtreme Memory Prole(X.M.P.) Technology.

ASUS STRIX Z270E GAMING BIOS Manual

When the Ai Overclock Tuner is set to [Manual] or [XMP], the following items appear.

BCLK Frequency

This item allows you to set the BCLK (base clock) frequency to enhance the system

performance. Use the <+> or <-> to adjust the value. The values range from 40.0 MHz to 650.0 MHz.

We recommend you to set the value based on the CPU specication, as high BCLK

frequencies may damage the CPU permanently.

ASUS MultiCore Enhancement

[Auto] This item allows you to maximize the oveclocking performance optimized

[Disabled] This item allows you to set to default core ratio settings.

by ASUS core ratio settings.

AVX Instruction Core Ratio Negative Offset

This item allows you to determine the ratio at which AVX applications run bu subtracting the value set from your core ratio.

CPU Core Ratio

This item allows you to set the CPU core ratio limit per core or synchronize automatically to

all cores.

Conguration options: [Auto] [Sync All Cores] [Per Core]

The following item appears only when you set the CPU Core Ratio to [Sync All Cores].

1-Core Ratio Limit

Enter [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 1-Core Limit value that must be higher than or equal to the 2-Core Ratio Limit.

The following items appear only when you set the CPU Core Ratio to [Per Core].

1-Core Ratio Limit

Enter [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 1-core ratio limit that must be higher than or equal to the 2-core ratio limit.

2-Core Ratio Limit

Enter [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 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].

ASUS STRIX Z270E GAMING BIOS Manual

3-Core Ratio Limit

Enter [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 3-core ratio limit that must be higher than or equal to the 4-core ratio limit.

If you assign a value for 3-Core Ratio Limit, do not set the 1-Core Ratio Limit and 2-Core Ratio Limit to [Auto].

4-Core Ratio Limit

Enter [Auto] to apply the CPU default Turbo Ratio setting or manually assign a 4-core ratio limit that must be lower than or equal to the 4-core ratio limit.

If you assign a value for 4-Core Ratio Limit, do not set the 1-Core Ratio Limit, 2-Core Ratio Limit, and 3-Core Ratio Limit to [Auto].

BCLK Frequency : DRAM Frequency Ratio

[Auto] The BCLK frequency to DRAM frequency ratio will be set to the optimized

[100:133] The BCLK frequency to DRAM frequency ratio will be set to 100:133.

[100:100] The BCLK frequency to DRAM frequency ratio will be set to 100:100.

setting.

DRAM Odd Ratio Mode

This item allows you to enable or disable availability of odd DRAM ratios for improved granularity.

Conguration options: [Enabled] [Disabled]

DRAM Frequency

This item allows you to set the memory operating frequency. The congurable options vary with the BCLK (base clock) frequency setting. Select the auto mode to apply the optimized

setting.

Conguration options: [Auto] [DDR4-800MHz] - [DDR4-4266MHz]

TPU

This item allows you to automatically overclock the CPU and DRAM frequencies and voltage for an enhanced system performance.

[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].

ASUS STRIX Z270E GAMING BIOS Manual

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.

Conguration options: [Disabled] [Enabled]

Load CPU 5G OC Profile

This 5G OC Prole allows you to easily overclock the Intel 7th gen Core Processor (K-series only) to 5GHz.

Overclock capabilities may vary by processors and it does not guarantee stability.

CPU SVID Support

Disable this item to stop the CPU from communicating with the external voltage regulator.

Conguration options: [Auto] [Disabled] [Enabled]

DRAM Timing Control

The subitems in this menu allow you to set the DRAM timing control features. Use the <+>

or <-> keys to adjust the value. To restore the default setting, type [auto] using the keyboard and press the <Enter> key.

Changing the values in this menu may cause the system to become unstable! If this happens, revert to the default settings.

Primary Timings

DRAM CAS# Latency

Conguration options: [Auto] [1] – [31]

DRAM RAS# to CAS# Delay

Conguration options: [Auto] [1] – [31]

DRAM RAS# ACT Time

Conguration options: [Auto] [1] – [63]

DRAM COMMAND Rate

Conguration options: [Auto] [1N] [2N] [3N] [N:1]

Secondary Timings

DRAM RAS# to RAS# Delay L

Conguration options: [Auto] [1] – [15]

DRAM RAS# to RAS# Delay S

Conguration options: [Auto] [1] – [15]

DRAM REF Cycle Time

Conguration options: [Auto] [1] – [1023]

DRAM Refresh Interval

Conguration options: [Auto] [1] – [65535]

ASUS STRIX Z270E GAMING BIOS Manual

DRAM WRITE Recovery Time

Conguration options: [Auto] [1] – [31]

DRAM READ to PRE Time

Conguration options: [Auto] [1] – [15]

DRAM FOUR ACT WIN Time

Conguration options: [Auto] [1] – [63]

DRAM WRITE to READ Delay

Conguration options: [Auto] [1] – [15]

DRAM WRITE to READ Delay L

Conguration options: [Auto] [1] – [15]

DRAM WRITE to READ Delay S

Conguration options: [Auto] [1] – [15]

DRAM CKE Minimum Pulse Width

Conguration options: [Auto] [0] – [15]

DRAM Write Latency

Conguration options: [Auto] [1] – [31]

Skew Control

ODT RTT WR (CHA)

Conguration options: [Auto] [0 DRAM CLOCK] [80 DRAM CLOCK] [120

DRAM CLOCK] [240 DRAM CLOCK] [255 DRAM CLOCK]

ODT RTT PARK (CHA)

Conguration 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 RTT NOM (CHA)

Conguration 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 RTT WR (CHB)

Conguration options: [Auto] [0 DRAM CLOCK] [80 DRAM CLOCK] [120

DRAM CLOCK] [240 DRAM CLOCK] [255 DRAM CLOCK]

ODT RTT PARK (CHB)

Conguration 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 RTT NOM (CHB)

Conguration 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

Conguration options: [Auto] [0] - [7]

ODT_READ_DELAY

Conguration options: [Auto] [0] - [7]

ASUS STRIX Z270E GAMING BIOS Manual

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