Asus B75M-PLUS - Manual (Page 57)

ASUS B75M-PLUS 2-27
2.7.1 Fast Boot [Enabled]
[Enabled] Select to accelerate the boot speed.
[Disabled] Select to go back to normal boot.
The following four items appear when you set Fast Boot to [Enabled].
USB Support [Partial Initialization]
[Disabled] All USB devices will not be available until OS boot up for the
fastest POST time.
[Full Initialization] All USB devices will be available during POST. This process will
extend the POST time.
[Partial Initialization] For a faster POST time, only the USB ports with keyboard and
mouse connections will be detected.
2.7 Boot menu
The Boot menu items allow you to change the system boot options.