So right now I'm running the Asus board in my sig. I'd like to upgrade my motherboard at the moment to something new. I have been eyeballing a couple different boards but here is the problem I have been running into. I have an Xfi Forte that I would like to keep and I got a third reference 5770 for a steal so naturally I'd like to tri fire as well as possibly picking up a 1055T or a 1090T. I have been eyeballing the Gigabyte GA-890FXA-UD7 and the Asus Crosshair IV. The main problem I see is that they lack a PCI Express x1 slot. Will a x1 card work in a 16x slot? What are my other choices for a Tri fire 890fx board that can do a decent 4ghz overclock?