Usb Configuration - ASROCK Fatal1ty X99 Professional Series User Manual

4.4.6 USB Configuration

USB Controller
Enable or disable all the USB ports.
Intel USB 3.0 Mode
Select Intel® USB 3.0 controller mode. Set [Smart Auto] to keep the USB 3.0 driver
enabled after rebooting (USB 3.0 is enabled in BIOS). Set [Auto] to automatically
enable the USB 3.0 driver after entering the OS (USB 3.0 is disabled in BIOS). Set
[Enabled] to keep the USB 3.0 driver enabled (Must install driver to use USB devices
under Windows® 7). Set [Disabled] to disable the USB 3.0 ports.
Legacy USB Support
Enable or disable Legacy OS Support for USB 2.0 devices. If you encounter USB
compatibility issues it is recommended to disable legacy USB support. Select UEFI
Setup Only to support USB devices under the UEFI setup and Windows/Linux
operating systems only.
Legacy USB 3.0 Support
Enable or disable Legacy OS Support for USB 3.0 devices. If you encounter USB
compatibility issues it is recommended to disable legacy USB support. Select UEFI
Setup Only to support USB devices under the UEFI setup and Windows/Linux
operating systems only.
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