Using the System Setup Program and UEFI Boot Manager 61
Boot Settings Screen
Port B
(Off default)
Auto enables BIOS support for the device attached to 
SATA port B. Off disables BIOS support for the device.
Option Description
Boot Mode
(BIOS default)
 
CAUTION: Switching the boot mode could prevent 
the system from booting if the operating system was 
not installed in the same boot mode.
If the system operating system supports Unified 
Extensible Firmware Interface, you can set this option to 
UEFI. Setting this field to BIOS allows compatibility 
with non-UEFI operating systems.
NOTE: Setting this field to UEFI disables the Boot 
Sequence, Hard-Disk Drive Sequence, and USB Flash Drive 
Emulation Type fields.
Boot Sequence If Boot Mode is set to BIOS, this field tells the system 
where the operating system files needed for startup are 
located. If Boot Mode is set to UEFI, you can access the 
UEFI boot manager utility by rebooting the system and 
pressing <F11> when prompted to do so.
Hard-Disk Drive 
Sequence
Determines the order in which the BIOS will attempt to 
boot from hard drives in the system during system 
startup.
USB Flash Drive 
Emulation Type
(Auto default)
Determines the emulation type for a USB flash drive. 
Hard disk allows the USB flash drive to act as a hard 
drive. Floppy allows the USB flash drive to act as a 
removable diskette drive. Auto automatically chooses an 
emulation type.
Auto automatically chooses the appropriate emulation 
type for the device, except for devices installed in the 
internal SD card slot. A device installed in the internal 
SD card slot will automatically emulate a hard drive. If 
you install a device in this slot that is configured as a 
removable diskette drive, you must manually set the 
emulation type to Floppy.
Option Description