Learn about USB 3.0 BIOS
Common BIOS reference code supports USB 2.0 and USB 3.0 capable chipsets. USB 3.0 switch driver is available to enumerate ports to xHCI. Consult your point of purchase or BIOS vendor if xHCI pre-boot support is enabled in BIOS. See the BIOS user guide for how to set USB 3.0 BIOS modes.