Asus Z87-A - Manual (Page 90)

2-40 ASUS Z87-A
Launch CSM [Enabled]
[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 [UEFI and Legacy OpROM]
Allows you to select the type of devices that you want to boot.
Configuration options: [U�FI and Legacy OpRO�] [Legacy OpRO� only] [U�FI only]
Boot from Network Devices [Legacy OpROM first]
Allows you to select the type of network devices that you want to launch.
Configuration options: [Legacy OpRO� first] [U�FI driver first] [Ignore]
Boot from Storage Devices [Legacy OpROM first]
Allows you to select the type of storage devices that you want to launch.
Configuration options: [Both, Legacy OpRO� first] [Both, U�FI first] [Legacy OpRO�
first] [U�FI driver first] [Ignore]
Boot from PCIe/PCI Expansion Devices [Legacy OpROM first]
Allows you to select the type of PCIe/PCI expansion devices that you want to launch.
Configuration options: [Legacy OpRO� first] [U�FI driver first]
2.8.18 Secure Boot
Allows you to configure the Windows ® Secure Boot settings and manage its keys to protect
the system from unauthorized access and malwares during POST.
OS Type [Windows UEFI mode]
[Windows UEFI
Mode]
Allows you to select your installed operating system. Execute the
Microsoft ® Secure Boot check. Only select this option when booting on
Windows ® UEFI mode or other Microsoft ® Secure Boot compliant OS.
[Other OS] Get the optimized function when booting on Windows ® non-UEFI
mode, Windows ® Vista/ Windows ® XP, or other Microsoft ® Secure Boot
non compliant OS. Microsoft ® Secure Boot only supports Windows ®
UEFI mode.