Asus P5AD2-E User Manual

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C h a p t e r 3 : B I O S s e t u p

3.4.3

USB Configuration

The items in this menu allows you to change the USB-related features.
Select an item then press to display the configuration options.

USB Function [X USB Ports]

Allows the BIOS to auto-detect the number of USB ports in your system.
Setting this item to [Disable] disables the USB function.
Configuration options: [Disabled] [2 USB Ports] [4 USB Ports]
[6 USB Ports] [8 USB Ports]

Legacy USB Support [Auto]

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]

USB 2.0 Controller [Disabled]

Allows you to enable or disable the USB 2.0 controller.
Configuration options: [Enabled] [Disabled]

USB 2.0 Controller Mode [HiSpeed]

Allows you to set the USB 2.0 controller mode to HiSpeed (480 Mbps) or
FullSpeed (12 Mbps). Configuration options: [FullSpeed] [HiSpeed]

BIOS EHCI Hand-Off [Enabled]

Allows you to enable support for operating systems without an EHCI
hand-off feature. Configuration options: [Enabled] [Disabled]

The M o d u l e V e r s i o n

M o d u l e V e r s i o n

M o d u l e V e r s i o n and U S B D e v i c e s E n a b l e d

U S B D e v i c e s E n a b l e d

U S B D e v i c e s E n a b l e d items show the

auto-detected values. If no USB device is detected, the item shows
N o n e

N o n e

N o n e.

USB Configuration

Module Version - 2.23.2-9.4

USB Devices Enabled: None

USB Function

[8 USB Ports]

Legacy USB Support

[Auto]

USB 2.0 Controller

[Disabled]

USB 2.0 Controller Mode

[HiSpeed]

BIOS EHCI Hand-Off

[Enabled]

Enables USB host
controllers.