Asus M4A89TD PRO/USB3 User Manual - Page 82

Plug And Play O/S [No], USB Support [Enabled], Legacy USB Support [Auto], USB 2.0 Controller Mode [

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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 [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 2.0 Controller Mode [HiSpeed] [FullSpeed] Sets the USB 2.0 controller mode to FullSpeed (12 Mbps). [HiSpeed] Sets the USB 2.0 controller mode to HiSpeed (480 Mbps). BIOS EHCI Hand-off [Enabled] [Enabled] Enables the support for operating systems without an EHCI hand‑off feature. [Disabled] Disables the function. 3.6.5 PCIPnP The PCI PnP menu items allow you to change the advanced settings for PCI/PnP devices. BIOS SETUP UTILITY Advanced Advanced PCI/PnP Settings WARNING: Setting wrong values in below sections may cause system to malfunction. Plug And Play O/S [No] Plug And Play O/S [No] [Yes] 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. [No] When set to [No], BIOS configures all the devices in the system. Chapter 3 3-26 Chapter 3: BIOS setup

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3-26
Chapter 3: BIOS setup
Chapter 3
3.6.5
PCIPnP
The PCI PnP menu items allow you to change the advanced settings for PCI/PnP devices.
Plug And Play O/S [No]
[Yes]
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.
[No]
When set to [No], BIOS configures all the devices in the system.
Advanced PCI/PnP Settings
WARNING: Setting wrong values in below sections
may cause system to malfunction.
Plug And Play O/S
[No]
BIOS SETUP UTILITY
Advanced
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 [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 2.0 Controller Mode [HiSpeed]
[FullSpeed]
Sets the USB 2.0 controller mode to FullSpeed (12 Mbps).
[HiSpeed]
Sets the USB 2.0 controller mode to HiSpeed (480 Mbps).
BIOS EHCI Hand-off [Enabled]
[Enabled]
Enables the support for operating systems without an EHCI hand-off feature.
[Disabled]
Disables the function.