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USB Configuration
This field is used to configure the USB set tings.
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 f or faster enumeration.
Chapter 3 BIOS Setup
Chapter 3
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
46
XHCI Mode
Selects the oper ation mode of XHCI controller . These options are Auto , Enabled,
and Disabled. When Disabled is selected in the XHCI Mode, it will displa y the f ollowing
inf ormation:
Aptio Setup Utility - Copyright (C) 2012 American Megatrends, Inc.
Chipset
USB Confi guration
[Disabled]
USB Precondition
XHCI Mode
[Disabled]
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 f unctions of USB EHCI (USB 2.0) controllers
One EHCI controller must alw ays 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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