ASRock X99 Extreme4 User Manual - Page 81

USB Controller, Intel USB 3.0 Mode, Legacy USB Support, Legacy USB 3.0 Support

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4.4.6 USB Coniguration X99 Extreme4 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 ater rebooting (USB 3.0 is enabled in BIOS). Set [Auto] to automatically enable the USB 3.0 driver ater 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. 75 English

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75
English
X99 Extreme4
4.4.6
USB Con±guration
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 a³er rebooting (USB 3.0 is enabled in BIOS). Set [Auto] to automatically
enable the USB 3.0 driver a³er 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.