Its the weekend, there arent many people on, it should pick up on monday.
What games are you running where its not showing much of a boost, also, are you sure you have SLI enabled everywhere it needs to be? I believe there is a way to get a game to show the SLI logo on boot if its enabled.
Im basically only going to be running Rift atm.. My current system runs it rather well I havent been below 30 fps but I havent been out of the starting zone. So im looking to overkill the game. I may just build an entirely new system and sell the one I have. Im going to put some components together and post them on here for everyone to critique