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4-8-1-2 ►USB Confi guration
Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc.
Main Advanced
USB Confi guration
XHCI Pre-Boot Driver [Enabled]
xHCI Mode [Smart Auto]
HS Port #1 Switchable [Enabled]
HS Port #2 Switchable [Enabled]
HS Port #3 Switchable [Enabled]
HS Port #4 Switchable [Enabled]
xHCI Streams [Enabled]
EHCI1 [Enabled]
EHCI2 [Enabled]
USB Ports Per-Port Disable Control [Disabled]
Enable or disable XHCI
Pre-Boot Driver support.
→←: Select Screen
↑↓: Select Item
Enter: Select
+/-: Change Opt.
F1: General Help
F2: Previous Values
F3: Optimized Defaults
F4: Save & Exit
Esc: Exit
Chipset
Boot
Security
Save & Exit
Use this item to enable or disable XHCI Pre-Boot Driver Support.
XHCI Pre-Boot Driver
Mode of operation of xHCI controller.
The optional settings are: Smart Auto, Enabled, Disabled.
xHCI Mode
Select PCI Express port speed.
The optional settings are: Auto, Gen1, Gen2.
PCIe Speed
Use this item to enable or disable xHCI Maximum Primary Stream Array Size.
The optional settings are: Disabled, Enabled.
Always for HS port switching between xHCI and EHCI. If disabled,
port is routed to EHCI. If HS port is routed to xHCI, the corresponding SS port is enabled.
The optional settings are: Disabled, Enabled.
xHCI Streams
HS Port #1 Switchable
HS Port #2 Switchable
HS Port #3 Switchable
HS Port #4 Switchable
Use this item to enable or disable USB EHCI (USB 2.0) support.
One EHCI controller must always be enabled.
The optional settings are: Enabled, Disabled.
EHCI1/ EHCI2
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