GTX 970 not using PCI-E 16x, can't figure it out.

Hello.

My system specs:
    Windows 10 64bit PRO (upgrade from 7, no clean install)
    Asus P6T
    i7 920 (overclocked to 4Ghz)
    6 GB DDR3 RAM
    MSI GTX 970 GAMING 4G
    Corsair TX 650W PSU
    Two Western Digital 500 GB H...