I just connected a second 7800GT to run SLI on my ASUS A8N SLI-Deluxe. It now says something like "please connect the EZ-plug on your motherboard" when I turn the computer on. I've made a little research about it and apparently this plug is there to supply the motherboard with some extra power for when you use two video cards. I also read that it's not working as well as it's supposed to, so I'm a little confused. Should I connect this or not? I have power cables connected to both video cards already. My powersupply is the Seasonic S12 600W.