Ampro Corporation COM 830 - Manual (Page 76)

Chapter 4 BIOS Setup Description
70 Reference Manual COM 830
USB Configuration Submenu
Feature Options Description
USB Functions Disabled
2 USB Ports
4 USB Ports
6 USB Ports
8 USB Ports
Disable ICH7M-DH USB host controllers.
Enable UHCI host controller 0.
Enable UHCI host controller 0 + 1.
Enable UHCI host controller 0 + 1 + 2.
Enable UHCI host controller 0 + 1 + 2 + 3.
USB 2.0 Controller Enabled
Disabled
Enable the ICH7M-DH USB 2.0 (EHCI) host controller.
Legacy USB Support Disabled
Enabled
Auto Legacy USB Support refers to the USB keyboard, USB
mouse and USB mass storage device support.
If this option is Disabled, any attached USB device will not
become available until a USB compatible operating system
is booted. However, legacy support for USB keyboard will
be present during POST.
When this option is Enabled, those USB devices can
control the system even when there is no USB driver
loaded.
AUTO disables legacy support if no USB devices are
connected.
USB Keyboard Legacy
Support Disabled
Enabled Enable/Disable USB keyboard legacy support.
NOTE: This option has to be used with caution. If the
system is equipped with USB keyboard only, the user
cannot enter setup to enable the option back.
USB Mouse Legacy
Support Disabled
Enabled Enable/Disable USB mouse legacy support.
USB Storage Device
Support Disabled
Enabled Enable/Disable USB mass storage device support.
Port 64/60 Emulation Disabled
Enabled Enable/Disable the “Port 6h/64h” trapping option. Port
60h/64h trapping allows the BIOS to provide full PS/2
based legacy support for USB keyboard and mouse. It
provides the PS/2 functionalities like keyboard lock,
password setting, scan code selection etc. to USB
keyboards.
USB 2.0 Controller
Mode FullSpeed
HiSpeed Configures the USB 2.0 host controller in HiSpeed
(480Mbps) or FullSpeed (12Mbps).
BIOS EHCI Hand-Off Disabled
Enabled Enable workaround for OSs without EHCI hand-off
support.
USB Beep Message Disabled
Enabled Enable/Disable the beep during USB device enumeration.
USB Stick Default
Emulation Auto
Hard Disk
Select default USB stick emulation type. Auto selects
floppy or hard disk emulation based on the storage size of
the USB stick, but the emulation type can be manually
reconfigured for each device using the Mass Storage
Device Configuration sub menu.