Foxconn H55A English Manual. - Page 43

3 USB Configuration CMOS Setup Utility - Copyright (C) 1985-2009, American Megatrends, Inc. USB Configuration USB Configuration Help Item Module Version - 2.24.5-13.4 Enables support for legacy USB. AUTO USB Devices Enabled : option disables 2 Hubs legacy support if no USB devices are Legacy USB Support [Enable d] connected. USB 2.0 Controller Mode [HiSpeed] BIOS EHCI Hand-Off [Enabled] Move Enter:Select +/-/:Value F10:Save ESC:Exit F1:General Help F9:Optimized Defaults ► Legacy USB Support This item is used to enable the support for USB devices on legacy OS. If you have a USB keyboard or mouse, set to auto or enabled. ► USB 2.0 Controller Mode This item is used to set the transmission rate mode of USB 2.0. The available settings are : [HiSpeed] in 480Mbps; [Full Speed] in 12Mbps. ► BIOS EHCI Hand-Off Windows XP supports a number of features in the Enhanced Host Controller Interface (EHCI) specification, but there are a few features that are not implemented. Microsoft said preliminary support for EHCI BIOS handoff will be available in Windows XP SP2. This item allows you to enable support for OS without EHCI hand-off feature. This is a workaround for OS without EHCI hand-Off support . The EHCI ownership change should claim by EHCI driver. 36