4 usb configuration, Bios menu 6: usb configuration – IEI Integration AVL-3000 User Manual
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AVL-3000 Advanced Auto Data Server
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4.3.4 USB Configuration
Use the USB Configuration menu (BIOS Menu 6) to read USB configuration information
and configure the USB settings.
Aptio Setup Utility – Copyright (C) 2011 American Megatrends, Inc.
Advanced
USB Configuration 
 
USB Devices: 
 None 
 
Legacy USB Support 
[Enabled]
 
 
 
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. 
 
--------------------- 
: Select Screen
↑ ↓: Select Item 
Enter: Select 
+/-: Change Opt. 
F1: General 
Help
F2: Previous
Values
F3: Optimized
Defaults
F4: Save & Exit 
ESC: Exit 
Version 2.14.1219. Copyright (C) 2011 American Megatrends, Inc.
BIOS Menu 6: USB Configuration
Legacy USB Support [Enabled]
Use the Legacy USB Support BIOS option to enable USB mouse and USB keyboard
support.
Normally if this option is not enabled, any attached USB mouse or USB keyboard does not
become available until a USB compatible operating system is fully booted with all USB
drivers loaded. When this option is enabled, any attached USB mouse or USB keyboard
can control the system even when there is no USB driver loaded onto the system.
Disabled
Legacy USB support disabled
Enabled D
EFAULT
Legacy USB support enabled
Auto
Legacy USB support disabled if no USB devices are
connected
