I have an asus z170 premium that uses an lga 1151 slot. All the overclockable cpus i find only support 16 pcie lanes. iv got a evga geforce gtx 1080 hybrid in one of the x16 slots essentially taking all the lanes. My main thing is that i want more lanes so i can put in a x4 pcie device with my gpu without taking bandwidth from my gpu and without changing motherboards.