Asus ROG STRIX B350-F GAMING - Secure Boot; Boot Option Priorities

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Chapter 3: BIOS Setup
Chapter 3
CSM (Compatibility Support Module)
Allows you to congure the CSM (Compatibility Support Module) items to fully support the
various VGA, bootable devices and add-on devices for better compatibility.
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 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.
Conguration 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.
Conguration options: [Ignore] [Legacy only] [UEFI driver rst]
Boot from Storage Devices [Legacy Only]
Allows you to select the type of storage devices that you want to launch.
Conguration options: [Ignore] [Legacy only] [UEFI driver rst]
Boot from PCI-E Expansion Devices
Allows you to select the type of PCI-E expansion devices that you want to launch.
Conguration options: [Legacy only] [UEFI driver rst]
Secure Boot
Allows you to congure 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.