Hello,
I've got a i7-4790K in an Asus B85M-E/CSM and only 6 of the 12 USB ports are working (no 3rd party ports, all from the Intel chipset). The first 4 ports on the IO panel, as are the 2 USB ports from one of the 2.0 headers. Ports from the other USB 2.0 header, USB 3 header, and bottom 2...