Pcipnp; Intel Vt-D Configuration - Asus P7H55/USB3 User Manual

USB Functions [Enabled]
[Enabled]
[Disabled]
The following items appear only when you set USB Support to [Enabled].
Legacy USB Support [Auto]
[Disabled]
[Enabled]
[Auto]
BIOS EHCI Hand-off [Enabled]
[Disabled]
[Enabled]
2.5.5

PCIPnP

The PCIPnP menu items allow you to change the advanced settings for PCI/PnP devices.
Plug And Play O/S [No]
[Yes]
[No]
2.5.6 Intel VT-d Configuration [Disabled]
[Disabled]
[Enabled]
2-18
Enables the USB Host Controllers.
Disables the controllers.
Disables the function.
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 operating systems without an EHCI hand-off
feature.
When set to [Yes] and if you install a Plug and Play operating system, the
operating system configures the Plug and Play devices not required for
boot.
When set to [No], BIOS configures all the devices in the system.
Disables the Intel Virtualization Technology for Directed I/O.
Enables the Intel Virtualization Technology for Directed I/O.
Chapter 2: BIOS information