Asus P7P55D-E EVO - Manual (Page 86)

3-26 Chapter 3: BIOS setup
Chapter 3
3.6.4 USB Configuration
The items in this menu allow you to change the USB-related features. Select an item and
press <Enter> to display the configuration options.
The USB Devices Enabled item shows the auto-detected values. If no USB device is
detected, the item shows None.
USB Functions [Enabled]
[Enabled] Enables the USB Host Controllers.
[Disabled] Disables the controllers.
The following items appear only when you set USB Functions to [Enabled].
Legacy USB Support [Auto]
[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.
[Enabled] Enables the support for USB devices on legacy operating systems (OS).
[Disabled] Disables the function.
USB Configuration
Module Version - 2.24.5-13.4
USB Devices Enabled:
2 Hubs
USB Functions [Enabled]
Legacy USB Support [Auto]
BIOS EHCI Hand-Off [Enabled]
BIOS SETUP UTILITY
Advanced
Options
Disabled
Enabled
Marvell SATA Controller [IDE Mode]
Allows you to select the Marvell controller operating mode.
[Disabled]
Disables the controller.
[IDE Mode] Set to [IDE Mode] when you want to use the Serial ATA hard disk drives as
Parallel ATA physical storage devices.
[AHCI Mode] Set to [AHCI Mode] when you want the SATA hard disk drives to use the
AHCI (Advanced Host Controller Interface). The AHCI allows the onboard
storage driver to enable advanced Serial ATA features that increases
storage performance on random workloads by allowing the drive to
internally optimize the order of commands..
USB 3.0 Controller [Enabled]
[Enabled] Enables the USB 3.0 controller.
[Disabled] Disables the controller.