Usb Configuration - Asus Z9PA-U8 User Manual

4.4.6

USB Configuration

Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.
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 time-out
USB Ports Configuration
Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc.
Legacy USB Support [Enabled]
This item enables or disables Legacy USB device support.
Configuration options: [Enabled] [Disabled] [Auto]
USB3.0 Support [Enabled]
This item enables or disables USB3.0 (XHCI) controller support.
Configuration options: [Enabled] [Disabled]
XHCI Hand-off [Enabled]
This is a workaround for OSes without XHCI ownership change should be claimed
by XHCI driver.
Configuration options: [Disabled] [Enabled]
EHCI Hand-off [Disabled]
This is a workaround for OSes without EHCI ownership change should be claimed
by EHCI driver.
Configuration options: [Disabled] [Enabled]
Port 60/64 Emulation [Enabled]
This item enables I/O port 60h/64h emulation support. This should be enabled for
the complete USB keyboard legacy support for non-USB aware OSes.
Configuration options: [Enabled] [Disabled]
4-24
Advanced
[Enabled]
[Enabled]
[Disabled]
[Disabled]
[Enabled]
[20 sec]
[20 sec]
Enabled 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.
→←: Select Screen
Select Item
↑↓:
Enter: Select Item
+/-: Change Opt.
F1: General Help
F2: Previous Values
F5: Optimized Defaults
F10: Save & Exit
ESC: Exit
Chapter 4: BIOS setup