Asus ROG Strix Z270I Gaming STRIX Z270I GAMING Users ManualEnglish - Page 70

CSM Compatibility Support Module, Secure Boot, Boot Option Priorities, Boot Override

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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 [Enabled] [Auto] The system automatically detects the bootable devices and the add-on devices. [Enabled] For better compatibility, enable the CSM to fully support the non-UEFI driver add-on devices or the Windows® UEFI mode. [Disabled] Disable the CSM to fully support the Windows® Security Update and Security Boot. The following four items appear when you set Launch CSM to [Enabled]. Boot Device Control [UEFI and Legacy OPROM] Allows you to select the type of devices that you want to boot up. Configuration options: [UEFI and Legacy OPROM] [Legacy OPROM only] [UEFI only] Boot from Network Devices [Legacy only] Allows you to select the type of network devices that you want to launch. Configuration options: [Ignore] [Legacy only] [UEFI driver first] Boot from Storage Devices [Legacy Only] Allows you to select the type of storage devices that you want to launch. Configuration options: [Ignore] [Legacy only] [UEFI driver first] Boot from PCI-E Expansion Devices [Legacy Only] Allows you to select the type of PCI-E expansion devices that you want to launch. Configuration options: [Legacy only] [UEFI driver first] 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. 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 select the boot device during system startup, press when ASUS Logo appears. Boot Override These items displays the available devices. The number of device items that appears on the screen depends on the number of devices installed in the system. Click an item to start booting from the selected device. Chapter 3 3-20 Chapter 3: BIOS Setup

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3-20
Chapter 3: BIOS Setup
Chapter 3
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 [Enabled]
[Auto]
The system automatically detects the bootable devices and the add-on
devices.
[Enabled]
For better compatibility, enable the CSM to fully support the non-UEFI
driver add-on devices or the Windows
®
UEFI mode.
[Disabled]
Disable the CSM to fully support the Windows
®
Security Update and
Security Boot.
The following four items appear when you set Launch CSM to [Enabled].
Boot Device Control [UEFI and Legacy OPROM]
Allows you to select the type of devices that you want to boot up. Configuration options:
[UEFI and Legacy OPROM] [Legacy OPROM only] [UEFI only]
Boot from Network Devices [Legacy only]
Allows you to select the type of network devices that you want to launch. Configuration
options: [Ignore] [Legacy only] [UEFI driver first]
Boot from Storage Devices [Legacy Only]
Allows you to select the type of storage devices that you want to launch. Configuration
options:
[Ignore] [Legacy only] [UEFI driver first]
Boot from PCI-E Expansion Devices [Legacy Only]
Allows you to select the type of PCI-E expansion devices that you want to launch.
Configuration options: [Legacy only] [UEFI driver first]
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.
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 select the boot device during system startup, press <F8> when ASUS Logo appears.
Boot Override
These items displays the available devices. The number of device items that appears on
the screen depends on the number of devices installed in the system. Click an item to start
booting from the selected device.