Dual Gigabit MB W/3 PCs

[PeaShooter]

Hi everyone, I have a eVGA 680i MB with dual gigabit lan ports. I want to network it with 2 pcs in the house. I have two crossovers and tried them but couldn't figure it out. Anyone have any ideas for me?
Thx for your help guys

 

[Madwand]

Do you have a router? Switch?

The best configuration is probably going to be to get a gigabit router or a router and a gigabit switch, and connect all the computers (and just one of the ports on the dual gig boards) to the gigabit router or switch.