Hello. Can anyone tell me what size sli bridge do i need? I was thinking about getting the evga HB bridge. I'll be using the pcie x16 and x8 slots, do i need 1 slot spacing or 2 slot spacing? This is my motherboard. https://www.amazon.com/Gigabyte-LGA1151-Motherboard-Motherboards-GA-Z170X-GAMING/dp/B012IBPPWG/ref=sr_1_1?s=electronics&ie=UTF8&qid=1490148318&sr=1-1&keywords=gigabyte+z170x-gaming+5