Asus Z8NA-D6C - Manual (Page 88)

4-26 Chapter 4: BIOS setup
The following item appears only when you set USB Function to [Enabled].
Legacy USB Support [Enabled]
Allows you to enable or disable support for legacy USB devices. Setting to [Auto]
allows the system to detect the presence of USB devices at startup. If detected, the
USB controller legacy mode is enabled. If no USB device is detected, the legacy
USB support is disabled. Configuration options: [Disabled] [Enabled] [Auto]
The following item appears only when you set USB Function to [Enabled].
USB 2.0 Controller Mode [HiSpeed]
Allows you to set the USB 2.0 controller to HiSpeed (480Mbps) or FullSpeed
(12Mbps). Configuration options: [FullSpeed] [HiSpeed]
BIOS EHCI Hand-Off [Enabled]
Enables or disables the BIOS EHCI hand-off support.
Configuration options: [Disabled] [Enabled]
4.4.4 USB Configuration
v02.61 (C)Copyright 1985-2008, American Megatrends, Inc.
BIOS SETUP UTILITY
Advanced
USB Configuration
Module Version - 2.24.3-13.4
USB Devices Enabled :
None
Legacy USB Support [Enabled]
USB 2.0 Controller Mode [HiSpeed]
BIOS EHCI Hand-Off [Enabled]
←→ Select Screen
↑↓ Select Item
+- Change Option
F1 General Help
F10 Save and Exit
ESC Exit
Enables support for
legacy USB. AUTO
option disables
legacy support if
no USB devices are
connected.