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USB Configuration
This field is used to configure the USB settings.
Aptio Setup Utility - Copyright (C) 2012 American Megatrends, Inc.
Chipset
USB Confi guration
USB Precondition
[Disabled]
XHCI Mode
[Auto]
USB Ports Per-Port Disable Control
[Disabled]
Version 2.15.1236. Copyright (C) 2012 American Megatrends, Inc.
USB Precondition
Precondition works on USB host controller and root ports for faster enumeration.
Chapter 7 BIOS Setup
Chapter 7
Precondition work on
USB host controller
and root ports for faster
enumeration.
Select Screen
Select Item
Enter: Select
+/ -:
Change Opt.
F1:
General Help
F2:
Previous Values
F3:
Optimized Defaults
F4:
Save & Reset
ESC: Exit
48
XHCI Mode
Selects the operation mode of XHCI controller. These options are Auto, Enabled,
and Disabled. When Disabled is selected in the XHCI Mode, it will display the following
information:
Aptio Setup Utility - Copyright (C) 2012 American Megatrends, Inc.
Chipset
USB Confi guration
USB Precondition
[Disabled]
[Disabled]
XHCI Mode
EHCI1
[Enabled]
EHCI2
[Enabled]
USB Ports Per-Port Disable Control
[Disabled]
Version 2.15.1236. Copyright (C) 2012 American Megatrends, Inc.
EHCI 1 and EHCI 2
These fields are used to control the functions of USB EHCI (USB 2.0) controllers
One EHCI controller must always be enabled.
Mode of operation of
XHCI controller.
Select Screen
Select Item
Enter: Select
+/ -:
Change Opt.
F1:
General Help
F2:
Previous Values
F3:
Optimized Defaults
F4:
Save & Reset
ESC: Exit
.
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