Usb Configuration; Legacy Usb Support - American Megatrends MB967 User Manual

USB Configuration

Advanced
Main
USB Configuration
USB Devices:
1 Keyboard, 2 Hubs

Legacy USB Support

USB3.0 Support
XHCI Hand-off
EHCI Hand-off
Port 60/64 Emulation
USB hardware delays and time-outs:
USB Transfer time-out
Device reset tine-out
Device power-up delay
Legacy USB Support
Enables Legacy USB support.
AUTO option disables legacy support if no USB devices are connected.
DISABLE option will keep USB devices available only for EFI
applications.
USB3.0 Support
Enable/Disable USB3.0 (XHCI) Controller support.
XHCI Hand-off
This is a workaround for OSes without XHCI hand-off support. The
XHCI ownership change should be claimed by XHCI driver.
EHCI Hand-off
Enabled/Disabled. This is a workaround for OSes without EHCI hand-off
support. The EHCI ownership change should be claimed by EHCI driver.
Port 64/60 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.
USB Transfer time-out
The time-out value for Control, Bulk, and Interrupt transfers.
Aptio Setup Utility
Chipset Boot
[Enabled]
[Enabled]
[Enabled]
[Enabled]
[Enabled]
[20 sec]
[20 sec]
[Auto]
MB967 User's Manual
BIOS SETUP
Security Save & Exit
→ ←
Select Screen
↑↓ Select Item
Enter: Select
+- Change Field
F1: General Help
F2: Previous Values
F3: Optimized Default
F4: Save ESC: Exit
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