Asus Rog strix b760 series User manual

ROG STRIX

B760 Series

BIOS Manual

Motherboard

E21631

First Edition

February 2023

No part of this manual, including the products and software described in it, may be reproduced,

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Contents

1 Knowing BIOS ............................................................................................... 4

2 BIOS setup program ..................................................................................... 5

2.1 EZ Mode......................................................................................... 6

2.2 Advanced Mode ............................................................................. 7

3 QFan Control ............................................................................................... 10

4 My Favorites ................................................................................................ 12

5 Main menu ................................................................................................... 14

6 Ai Tweaker menu......................................................................................... 16

7 Advanced menu .......................................................................................... 33

7.1 Platform Misc Conguration......................................................... 34

7.2 CPU Conguration ....................................................................... 35

7.3 System Agent (SA) Conguration ................................................ 38

7.4 PCH Conguration ....................................................................... 39

7.5 PCH Storage Conguration.......................................................... 39

7.6 PCH-FW Conguration ................................................................ 41

7.7 Thunderbolt(TM) Conguration.................................................... 41

7.8 UEFI Variables Protection............................................................ 43

7.9 PCI Subsystem Settings .............................................................. 43

7.10 USB Conguration ....................................................................... 44

7.11 Network Stack Conguration........................................................ 45

7.12 NVMe Conguration..................................................................... 45

7.13 HDD/SSD SMART Information .................................................... 46

7.14 APM Conguration....................................................................... 46

7.15 Onboard Devices Conguration................................................... 47

8 Monitor menu .............................................................................................. 49

8.1 Temperature Monitor.................................................................... 49

8.2 Fan Speed Monitor....................................................................... 50

8.3 Voltage Monitor............................................................................ 50

8.4 Q-Fan Conguration..................................................................... 51

9 Boot menu ................................................................................................... 57

9.1 CSM (Compatibility Support Module)........................................... 57

9.2 Secure Boot ................................................................................. 58

9.3 Boot Conguration ....................................................................... 61

10 Tool menu.................................................................................................... 64

11 Exit menu..................................................................................................... 67

12 Updating BIOS............................................................................................. 68

12.1 EZ Update.................................................................................... 68

12.2 ASUS EZ Flash 3......................................................................... 69

12.3 ASUS CrashFree BIOS 3............................................................. 70

4ROG STRIX B760 Series BIOS Manual

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 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 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 for your motherboard, rename it as

XXXXX.CAP. The name of the CAP le varies depending on models. Refer to the user

manual that came with your motherboard for the name.

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

refer to the latest BIOS version for settings and options.

BIOS Setup

1 Knowing BIOS

ROG STRIX B760 Series BIOS Manual 5

• 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>.

• 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 your motherboard 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.

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 any of the three options, press <Delete> key to enter BIOS.

6ROG STRIX B760 Series BIOS Manual

2.1 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 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.

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

Selects the display language

of the BIOS setup program

Displays the CPU/motherboard

temperature, CPU voltage output,

CPU/chassis/AIO PUMP/CPU OPT

fan speed, and SATA information

Displays the system properties of

the selected mode. Click < or > to

switch EZ System Tuning modes

Loads optimized

default settings

Displays the CPU Fan’s speed. Click

the button to manually tune the fans

Saves the changes

and resets the system

Click to display boot devices

Selects the boot device priority

Click to go to Advanced mode

Turns the RGB LED lighting

or functional LED on or off

Searches by BIOS item

name, enter the item name to

nd the related item listing Turns the Re-Size BAR

Support on or off

Activates MemTest86

Enables Intel Rapid Storage

Technology operation conguration

ROG STRIX B760 Series BIOS Manual 7

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.

Menu items

General help

Menu bar Language

AURA ON/OFF(F4)

Qfan Control(F6)

MyFavorite(F3)

Scroll bar

Pop-up Menu

Conguration elds Last modied

settings

Go back to EZ

Mode

Displays a quick overview

of the system status

Submenu items

Search(F9)

Hot keys

MemTest86

ReSize BAR

8ROG STRIX B760 Series BIOS Manual

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

An arrow 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 frequently-

used BIOS settings and save it to MyFavorites menu.

Refer to section 4 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 3 QFan Control for more information.

Search(F9)

This button allows you to search for BIOS items by entering its name, enter the item name to

nd the related item listing.

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 conguration

Main For changing the basic system conguration

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

Boot For changing the system boot conguration

Tool For conguring options for special functions

Exit For selecting the exit options and loading default settings

ROG STRIX B760 Series BIOS Manual 9

AURA(F4)

This button allows you to turn the RGB LED lighting or functional LED on or off.

[All On] All LEDs (Aura or Functional) will be enabled.

[Stealth Mode] All LEDs (Aura and Functional) will be disabled.

[Aura Only] Aura LEDs will be enabled and functional LEDs will be disabled.

[Aura Off] Aura LEDs will be disabled, however functional LEDs will still be enabled.

ReSize BAR

This button allows you to enable or disable the Re-Size BAR Support.

[OFF] Re-Size BAR Support will be disabled.

[ON] Enable Re-Size BAR Support for harnessing full GPU memory, and CSM

(Compatibility Support Module) will be disabled.

MemTest86

This button allows you to activate MemTest86.

• Please save the changes before applying this option.

• There will be a little loading period for a few seconds after you click this button.

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.

Conguration elds

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 Modied button

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

10 ROG STRIX B760 Series BIOS Manual

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

congured Click to activate

PWM Mode or

DC Mode

Click to undo the

changes

Click to apply the fan setting

Click to go back to main menu

Select a prole to

apply to your fans

Select to manually congure

your fans

ROG STRIX B760 Series BIOS Manual 11

Speed points Select to manually

congure your fans

Conguring fans manually

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

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).

12 ROG STRIX B760 Series BIOS Manual

4 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.

ROG STRIX B760 Series BIOS Manual 13

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.

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 or press <Enter> on your keyboard.

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.

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.

Main menu panel

Submenu panel

Selected shortcut

items

Delete all favorite

items

Recover to default

favorite items

14 ROG STRIX B760 Series BIOS Manual

5 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 jumper.

• 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 B760 Series BIOS Manual 15

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].

16 ROG STRIX B760 Series BIOS Manual

6 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.

ASUS Performance Enhancement 3.0

Allows you to unlock power limits to increase CPU performance.

[Disabled] Allows you to keep Intel’s default CPU settings.

[Enabled] Allows you to enable ASUS optimized CPU settings.

Actual settings may vary depending on different models.

BCLK Frequency : DRAM Frequency Ratio

This item allows you to set the ratio of BCLK frequency and DRAM frequency. Select the auto

mode to apply the optimized setting. Conguration options: [Auto] [100:133] [100:100]

BCLK Frequency : DRAM Frequency Ratio of 100:133 tends to overclock better.

Memory Controller : DRAM Frequency Ratio

This item allows you to set the ratio of memory controller and DRAM frequency. Select the

auto mode to apply the optimized setting. Conguration options: [Auto] [1:1] [1:2] [1:4]

Memory Controller : DRAM Frequency Ratio of 1:2 only works with even numbered DRAM

ratios, not odd numbered ratios.

ROG STRIX B760 Series BIOS Manual 17

DRAM Frequency

Allows you to select the DRAM operating frequency or select [Auto] to apply the optimized

setting. Conguration options: [Auto] [DDR4-800MHz] – [DDR4-8400MHz]

• The conguration options vary with the BCLK frequency setting.

• The frequency ratios in grey are not recommended. Use BCLK + ratios in white to

reach your target frequency if needed.

Selecting a very high memory frequency may cause the system to become unstable! If this

happens, revert to the default setting.

Performance Core Ratio

[Auto] The system will adjust all performance core ratios automatically.

[Sync All Cores] Allows you to congure a core ratio limit to synchronize all Performance

cores.

[By Core Usage] Allows you to congure the ratio limits for active cores depending on how

many Performance cores are being utilized.

Efcient Core Ratio

[Auto] The system will adjust all efcient core ratios automatically.

[Sync All Cores] Allows you to congure a core ratio limit to synchronize all Efcient cores.

[By Core Usage] Allows you to congure the ratio limits for active cores depending on how

many Efcient cores are being utilized.

AVX Related Controls

AVX2

This item allows you to enable or disable the AVX 2 instructions. Conguration options:

[Auto] [Disabled] [Enabled]

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 <Enter> key.

Changing the values in this menu may cause the system to become unstable! If this

happens, revert to the default settings.

DRAM CAS# Latency

Conguration options: [Auto] [1] – [127]

DRAM RAS# to CAS# Delay

Conguration options: [Auto] [0] – [255]

DRAM RAS# PRE Time

Conguration options: [Auto] [0] – [255]

DRAM RAS# ACT Time

Conguration options: [Auto] [1] – [511]

18 ROG STRIX B760 Series BIOS Manual

DRAM Command Rate

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

The following item appears only when you set DRAM Command Rate to [N:1].

N to 1 ratio

Conguration options: [1] – [7]

Secondary Timings

DRAM RAS# to RAS# Delay L / DRAM RAS# to RAS# Delay S

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

DRAM REF Cycle Time / DRAM REF Cycle Time 2 / DRAM REF Cycle Time 4

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

DRAM Refresh Interval

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

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 / DRAM WRITE to READ Delay L /

DRAM WRITE to READ Delay S

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

DRAM CAS to CAS Delay L

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

DDRCRCOMPCTL0/1/2

Ctl0 dqvrefup

Conguration options: [Auto] [0] – [255]

Ctl0 dqvrefdn

Conguration options: [Auto] [0] – [255]

Ctl0 dqodtvrefup

Conguration options: [Auto] [0] – [255]

Ctl0 dqodtvrefdn

Conguration options: [Auto] [0] – [255]

Ctl1 cmdvrefup

Conguration options: [Auto] [0] – [255]

ROG STRIX B760 Series BIOS Manual 19

Ctl1 ctlvrefup

Conguration options: [Auto] [0] – [255]

Ctl1 clkvrefup

Conguration options: [Auto] [0] – [255]

Ctl1 ckecsvrefup

Conguration options: [Auto] [0] – [255]

Ctl2 cmdvrefdn

Conguration options: [Auto] [0] – [255]

Ctl2 ctlvrefdn

Conguration options: [Auto] [0] – [255]

Ctl2 clkvrefdn

Conguration options: [Auto] [0] – [255]

ODT RTT WR (CHA) / 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 (CHA) / ODT RTT NOM (CHA) / ODT RTT PARK (CHB) /

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 / ODT_READ_DELAY / ODT_WRITE_DURATION /

ODT_WRITE_DELAY

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

RTL IOL Control

Round Trip Latency Init Value MC0 CHA / Round Trip Latency Init Value

MC1 CHA

Conguration options: [Auto] [0] – [255]

Round Trip Latency Max Value MC0 CHA / Round Trip Latency Max Value

MC1 CHA

Conguration options: [Auto] [0] – [255]

Round Trip Latency Offset Value Mode Sign MC0 CHA / Round Trip

Latency Offset Value Mode Sign MC1 CHA

Conguration options: [-] [+]

Round Trip Latency Offset Value MC0 CHA / Round Trip Latency Offset

Value MC1 CHA

Conguration options: [Auto] [0] – [255]

Round Trip Latency MC0 CHA R0~R7 / Round Trip Latency MC1 CHA

R0~R7

Conguration options: [Auto] [0] – [255]

Memory Training Algorithms

Early Command Training