User`s manual

www.dfi .comChapter 4 BIOS Setup
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Chapter 4
PME SCI
Enable or disable PCI Express PME SCI.
Hot Plug
Enable or disable PCI Express Hot Plug.
PCIe Speed
Select the PCIe Speed: Gen1 or Gen 2.
USB Configuration
Mode of operation of
XHCI Controller.
Aptio Setup Utility - Copyright (C) 2012 American Megatrends, Inc.
Version 2.15.1236. Copyright (C) 2012 American Megatrends, Inc.
USB Confi guration
XHCI Mode
EHCI1
EHCI2
[Disabled]
[Enabled]
[Enabled]
Chipset
 Select Screen
 Select Item
Enter: Select
+/
-:
Change Opt.
F1: General Help
F2: Previous Values
F3: Optimized Defaults
F4: Save and Reset
ESC: Exit
XHCI Mode
Select the operation mode of XHCI controller. These options are Smart Auto, Auto,
Enabled, Disabled.
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.