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User's Manual
Other PCI devices
This item is used to set the EFI PCI device OpROM boot or the traditional PCI device OpROM boot
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USB Configuration
Use this item to show the information of USB configuration.
Figure 3.15
Legacy USB Support
This item is used to set the USB interface support. If you need to support USB devices under DOS, such
as U disk, USB keyboard, etc., set this item to [Enabled] or [Auto]. Otherwise, select [Disabled].
USB 2.0 (EHCI) Support
[Enabled]: Allows USB EHCI transport protocol with a maximum transfer rate of 480Mpbs
[Disabled]: Disable the USB2.0 interface, the traditional transfer rate is 12Mpbs.
USB 2.0 Controller Mode
This item sets USB 2.0 device works in full speed mode (FullSpeed) or high speed mode (HiSpeed).
EHCI Hand-off
This option is used to determine whether to cut the USB port into USB 2.0 mode before entering the OS.
Set to Disable, It will operate in USB 1.1 compatibility mode before giving ownership to the OS.
USB Mass Storage Driver Support
USB mass storage device support switch.
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