Asus P7P55D User Manual - Page 86

USB Support [Enabled], Legacy USB Support [Enabled], BIOS EHCI Hand-off [Enabled]

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3.6.4 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. BIOS SETUP UTILITY Advanced USB Configuration Module Version - 2.24.3-13.4 USB Devices Enabled: 2 Hubs Options Disabled Enabled USB Functions Legacy USB Support BIOS EHCI Hand-Off [Enabled] [Auto] [Enabled] The USB Devices Enabled item shows the auto-detected values. If no USB device is detected, the item shows None. USB Support [Enabled] [Enabled] Enables the USB Host Controllers. [Disabled] Disables the controllers. The following items appear only when you set USB Support to [Enabled]. Legacy USB Support [Enabled] [Disabled] Disables the function. [Enabled] Enables the support for USB devices on legacy operating systems (OS). [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. BIOS EHCI Hand-off [Enabled] [Disabled] Disables the function. [Enabled] Enables the support for operating systems without an EHCI hand‑off feature. Chapter 3 3-24 Chapter 3: BIOS setup

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3-24
Chapter 3: BIOS setup
Chapter 3
3.6.4
USB Configuration
The items in this menu allows you to change the USB-related features. Select an item then
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 Support [Enabled]
[Enabled]
Enables the USB Host Controllers.
[Disabled]
Disables the controllers.
The following items appear only when you set USB Support to [Enabled].
Legacy USB Support [Enabled]
[Disabled]
Disables the function.
[Enabled]
Enables the support for USB devices on legacy operating systems (OS).
[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.
BIOS EHCI Hand-off [Enabled]
[Disabled]
Disables the function.
[Enabled]
Enables the support for operating systems without an EHCI hand-off
feature.
USB Configuration
Module Version - 2.24.3-13.4
USB Devices Enabled:
2 Hubs
USB Functions
[Enabled]
Legacy USB Support
[Auto]
BIOS EHCI Hand-Off
[Enabled]
BIOS SETUP UTILITY
Advanced
Options
Disabled
Enabled