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XHCI Hand-off [Disabled]
This item is set to [Disabled] by default for the EHCI (enhanced host controller interface)
support by XHCI drivers in operating systems.
[Enabled]
[Disabled]
USB Mass Storage Driver Support [Enabled]
Allows you to enable or disable the USB Mass Storage driver support.
Configuration options: [Disabled] [Enabled]
Port 60/64 Emulation [Enabled]
This allows you to enable the I/O port 60h/64h emulation support. This should be enabled for
the complete USB keyboard legacy support for non-USB aware OSes.
Configuration options: [Disabled] [Enabled]
USB hardware delays and time-outs
USB transfer time-out [20 sec]
Allows you to select the USB transfer time-out value.
Configuration options: [1 sec] [5 sec] [10 sec] [20 sec]
Device reset time-out [20 sec]
Allows you to select the USB device reset time-out value.
Configuration options: [10 sec] [20 sec] [30 sec] [40 sec]
Device power-up delay [Auto]
This allows you to set the maximum time the device will take before it properly reports itself to
the Host Controller.
Configuration options: [Auto] [Manual]
Mass Storage Devices
Allows you to select the mass storage device emulation type for devices connected.
Configuration options: [Auto] [Floppy] [Forced FDD] [Hard Disk] [CD-ROM]
NVMe Configuration
You may view the NVMe controller and Drive information if an NVMe device is connected.
4-20
Support XHCI by BIOS for operating systems without XHCI support.
Support XHCI by XHCI drivers for operating systems with XHCI support.
Chapter 4: BIOS Setup
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