Usb Configuration - Asus P9X79 User Manual

3.5.5

USB Configuration

The items in this menu allow you to change the USB-related features.
UEFI BIOS Utility - Advanced Mode
Main
Back Advanced\
USB Configuration
USB Devices:
1 Keyboard, 1 Mouse, 4 Hubs
Legacy USB Support
Legacy USB3.0 Support
EHCI Hand-off
The USB Devices item shows the auto-detected values. If no USB device is detected, the
item shows None.
Legacy USB Support [Enabled]
[Disabled]
[Enabled]
[Auto]
Legacy USB3.0 Support [Enabled]
[Disabled]
[Enabled]
EHCI Hand-off [Disabled]
[Disabled]
[Enabled]
3-32
Ai Tweaker
Advanced
USB Configuration >
The USB devices can be used only for the BIOS setup program.
Enables the support for USB devices on legacy operating systems (OS).
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.
Disables the function.
Enables the support for USB 3.0 devices on legacy operating systems
(OS).
Disables the function.
Enables the support for operating systems without an EHCI hand-off
feature.
Monitor Boot
Enables Legacy USB support. AUTO
option disables legacy support if no
USB devices are connected. DISABLE
option will keep USB devices
available only for UEFI applications.
Enabled
Enabled
Disabled
Exit
Tool
Chapter 3: BIOS setup