Acer Altos R710 Service Manual page 50

USB Configuration Sub-menu
USB Configuration Sub-menu Selections
Feature
USB Configuration
USB Devices Enabled
USB Function
Legacy USB Support
Port 60/64 Emulation
USB 2.0 Controller
41
Options
N/A N/A
Disabled Enables USB HOST
controllers
Enabled
Disabled/ Enables support for legacy
Keyboard only/ USB. AUTO option disables
Auto/Keyboard legacy support if no USB
and Mouse devices are connected. If
disabled, USB Legacy
Support will not be disabled
until booting an OS.
Disabled/ Enables I/O port 60/64h
Enabled emulation support. This
should be enabled for the
complete USB keyboard
legacy support for non-USB
aware OSes.
Disabled/ N/A
Enabled
Help Text
List of USB devices
detected by BIOS.
When set to disabled,
other USB options are
grayed out
Description
Chapter 2