SUPER MICRO Computer Dual Processor AS 1020C-3 - Manual (Page 88)

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AS1020C-3 User's Manual
USB Confi guration
This screen will display the module version and all USB enabled devices.
USB Controller Support
Enable the controller for your USB ports. Options are Disabled, USB 1.1 only
and USB 1.1 + USB 2.0.
Legacy USB Support
Select "Enabled" to enable the support for USB Legacy. Disable Legacy support
if there are no USB devices installed in the system. The options are Disabled,
Enabled and Auto.
USB 2.0 Controller Mode
Select the controller mode for your USB ports. Options are HiSpeed and
FullSpeed. (HiSpeed=480 Mbps, FullSpeed=12 Mbps).
BIOS EHCI Hand-Off
Enable or Disable a workaround for OS's without EHCI hand-off support.