Asus STRIX Z270G GAMING, Manual, Page: 81 / 106

ROG STRIX Z270G GAMING 3-21
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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.
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.