Asus ROG STRIX X570-I GAMING Manual page 74

CSM (Compatibility Support Module)
This item 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
[Auto]
[Enabled]
[Disabled]
The following items appear only when you set the Launch CSM to [Enabled].
Secure Boot
This item allows you to configure the Windows
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.
•
•
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.
3-20
The system automatically detects the bootable devices and the add-
on devices.
For better compatibility, enable the CSM to fully support the non-
UEFI driver add-on devices or the Windows
Disable the CSM to fully support the non-UEFI driver add-on devices
or the Windows UEFI mode.
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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]
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.
UEFI mode.
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Secure Boot settings and manage its keys to
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Chapter 3: BIOS Setup