The onboard graphic's is only single monitor set-up. You would have to add a video card to your existing setup. If that is the correct listing for your computer you linked to then you have a pci-e slot and would have to go with a pci-e video card with the dual monitor ports. There are a great number of video cards with dual ports but pending on what you plan to do with the computer and how much $$$'s you want to spend on a card.