� usb configuration, Legacy usb support [enabled, Legacy usb3.0 support [enabled – Asus P8B WS User Manual
Page 95: Ehci hand-off [disabled
ASUS P8B WS
3-19
�.5.�
USB Configuration
The items in this menu allow you to change the USB-related features.
The USB Devices item shows the auto-detected values. If no USB device is
detected, the item shows None.
Legacy USB Support [Enabled]
[Disabled]
The USB devices can be used only for the BIOS setup program.
[Enabled]
Enables the support for USB devices on legacy operating systems
(OS).
[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.
Legacy USB3.0 Support [Enabled]
[Disabled]
Disables the function.
[Enabled]
Enables the support for USB 3.0 devices on legacy operating
systems (OS).
EHCI Hand-off [Disabled]
[Disabled]
Disables the function.
[Enabled]
Enables the support for operating systems without an EHCI
hand-off feature.
Main
Ai Tweaker
Advanced
Monitor
Boot
Tool
Exit
Enables Legacy USB support. AUTO
option disables legacy support if no
USB devices are connected. DISABLE
option will keep USB devices
available only for EFI applications.
Back
Advanced\
USB Configuration >
EFI BIOS Utility - Advanced Mode
USB Configuration
USB Devices:
1 Drive, 2 Hubs
Legacy USB Support
Enabled
Legacy USB3.0 Support
Enabled
EHCI Hand-off
Disabled