Dell Alienware Alpha (Late 2014) - Manual (Page 77)

Advanced
Rear USB Ports Allows you to enable or disable the
rear USB ports.
Onboard Device Configuration
Onboard Audio Controller Allows you to enable or disable the
onboard audio controller.
SATA Mode Displays the SATA mode on your
computer.
Onboard LAN Controller Allows you to enable or disable the
onboard LAN controller.
Onboard LAN Boot ROM Allows you to boot your computer
from a network.
Boot
Numlock Key Allows you to set the status of the
Num Lock key during boot to On or
Off.
Secure Boot Allows you to enable or disable the
secure boot control.
Load Legacy OPROM Allows you to enable or disable the
Legacy Option ROM.
Keyboard Errors Allows you to enable or disable the
display of keyboard-related errors
during boot.
USB Boot Support Allows you to enable or disable
booting from USB mass storage
devices such as external hard drive,
optical drive, USB drive, and so on.
Boot Mode
Boot Option #1 Displays the first boot device.
Default: UEFI: Windows Boot
Manager.
Boot Option #2 Displays the second boot device.
Default: USB Storage Device.
Boot Option #3 Displays the third boot device.
Default: Internal ODD Devices.
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