I'm looking to buy the "EPoX EP-9NPA+ SLi Socket 939 NVIDIA nForce4 SLI ATX AMD Motherboard - Retail" from newegg. it says it supports dual channel ram, and the ram slots look coordinated for a dual channel setup. The question is can i use just one stick of 1gig of OCZ ram that i already have? If the board says it supports dual channel do you have to use dual channel? Thanks!