Asus ROG Strix X299-E Gaming II Users Manual English - Page 91

Secure Boot, Boot Option Priorities, Boot Override, Launch CSM, Boot Devices Control

Page 91 highlights

Launch CSM [Auto] [Enabled] [Disabled] The system automatically detects the bootable devices and the addon devices. For better compatibility, enable the CSM to fully support the nonUEFI driver add-on devices or the Windows® UEFI mode. Disable the CSM to fully support the non-UEFI driver add-on devices or the Windows® UEFI mode. The following items appear only when Launch CSM is set to [Enabled]. Boot Devices Control This item allows you to select the type of devices that you want to boot. Configuration options: [UEFI and Legacy OPROM] [Legacy OPROM only] [UEFI only] Boot from Network Devices This item 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 This item 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/PCI Expansion Devices This item allows you to select the type of PCI-E/PCI expansion devices that you want to launch. Configuration options: [Legacy only] [UEFI driver first] Secure Boot This item 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 access Windows® OS in Safe Mode, press after POST (Windows® 8 not supported). • To select the boot device during system startup, press when the 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 ROG STRIX X299-E GAMING II 3-23

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ROG STRIX X299-E GAMING II
3-23
Chapter 3
Launch CSM
[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 non-UEFI driver add-on devices
or the Windows
®
UEFI mode.
The following items appear only when
Launch CSM
is set to
[Enabled]
.
Boot Devices Control
This item allows you to select the type of devices that you want to boot.
Configuration options: [UEFI and Legacy OPROM] [Legacy OPROM only]
[UEFI only]
Boot from Network Devices
This item 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
This item 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/PCI Expansion Devices
This item allows you to select the type of PCI-E/PCI expansion devices
that you want to launch.
Configuration options: [Legacy only] [UEFI driver first]
Secure Boot
This item 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 access Windows
®
OS in Safe Mode, press <F8> after POST (Windows
®
8 not
supported).
To select the boot device during system startup, press <F8> when the 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.