Asus ROG MAXIMUS X HERO, Manual, Page: 82 / 110

3-22 Chapter 3: BIOS Setup
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CSM (Compatibility Support Module)
This item 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 non-UEFI driver add-on devices
or the Windows
®
UEFI mode.
The following items appear only when you set the
Launch CSM
to
[Enabled]
.
Boot Devices Control
This item allows you to select the type of devices that you want to boot.
Con guration 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.
Con guration options: [Ignore] [Legacy only] [UEFI driver rst]
Boot from Storage Devices
This item 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/PCI Expansion Devices
This item allows you to select the type of PCI-E/PCI expansion devices that
you want to launch.
Con guration options: [Legacy only] [UEFI driver rst]
Secure Boot
This item 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.