Can I add a 2nd video card to a Dimension E510 (Need answer now!)

[PennDisc]

I dunno that much about the E510 but generally as long as you have a free slot you can add whatever you want. I'd guess your PCIe x16 slot is being used by the videocard that you currently have so if you want to still use that one you'd want to make sure your 2nd card will work in your PCIe x1 slot.