I have an ASUS Z87-A motherboard which definitely supports USB 3.0 but for some reason, it isn't working. It seems like the Intel USB 3.0 Controller driver only supports Windows 7. Is there any way to to force-install a Windows 7 driver in Windows 8?
EDIT: I just found this:
Windows 8* has a native in-box USB 3.0 driver. Intel is not releasing a specific Intel® USB 3.0 eXtensible Host Controller Driver for Windows 8.