Asus H81M-C - Manual (Page 62)

2-34 Chapter 2: Getting started
2.8 Boot menu
The Boot menu items allow you to change the system boot options.
Scroll down to display the following items:
2.8.1 Fast Boot [Enabled]
[Enabled] Select to accelerate the boot speed.
[Disabled] Select to go back to normal boot.
The following five items appear when you set Fast Boot to [Enabled].
SATA Support [All Devices]
[All Devices] All devices connected to SATA ports will be available during
POST. This process will extend the POST time.
[Hard Drive Only] Only hard drives connected to SATA ports will be detected during
POST. Any hardware change will disable fast boot.
[Boot Drive Only] Only boot drive connected to SATA ports will be detected during
POST. Any hardware change will disable fast boot.