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USB Confi guration
This section is used to confi gure USB.
Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.
Advanced
USB Confi guration
USB Devices:
2 Hubs
Legacy USB Support
XHCI Hand-off
EHCI Hand-off
Port 60/64 Emulation
USB hardware delayss and time-outs:
Device power-up delay
Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc.
Legacy USB Support
Enabled
Enables legacy USB.
Auto
Disables support for legacy when no USB devices are connected.
Disabled
Keeps USB devices available only for EFI applications.
XHCI Hand-off
This is a workaround for OSes that does not support XHCI hand-off. The
XHCI ownership change should be claimed by the XHCI driver.
EHCI Hand-off
This is a workaround for OSes that does not support EHCI hand-off. The EHCI
ownership change should be claimed by the EHCI driver.
Port 60/64 Emulation
Enables I/O port 60h/64h emulation support. This should be enabled for the
complete USB keyboard legacy support for non-USB aware OSes.
Device power-up delay
The device will take maximum time before it properly reports itself to con-
troller.
Enables Legacy USB
support. AUTO option
disables legacy support if
no USB devices are
connected. DISABLE
option will keep USB
[Enabled]
devices available only for
[Enabled]
EFI applications.
[Disabled]
[Enabled]
[Auto]
Enter: Select
+/ -:
F1:
F2:
F3:
F4:
ESC: Exit
BIOS Setup
Select Screen
Select Item
Change Opt.
General Help
Previous Values
Optimized Defaults
Save & Exit
3
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