Asus 90MB1000-M0EAY0 Manual page 70

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 a better compatibility, enable the CSM to fully support the non-
UEFI driver add-on devices or the Windows UEFI mode.
Disable the CSM to fully support the Windows secure update and
secure boot.
Boot Devices Control [UEFI and Legacy OPROM]
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 [Legacy only]
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 [Legacy only]
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 [Legacy only]
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.
To select the boot device during system startup, press <F8> when the ASUS Logo
appears.
Secure Boot settings and manage its keys to
®
Chapter 3: BIOS Setup