Asus P7H55D-M EVO - Manual (Page 88)

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 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.
BIOS EHCI Hand-off [Enabled]
[Enabled] Enables the support for operating systems without an EHCI hand-off
feature.
[Disabled] Disables the function.
Onboard USB 3.0 Controller [Enabled]
[Enabled] Enables the USB 3.0 controller.
[Disabled] Disables the controller.
When using an add-on card, the USB 3.0 ports at back panel support the maximum
bandwidth of Gen 1.
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]
Onboard USB 3.0 Controller [Enabled]
BIOS SETUP UTILITY
Advanced
Options
Disabled
Enabled
Serial Port1 Address [3F8/IRQ4]
Allows you to select the Serial Port1 base address.
Configuration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]