I have an older Gigabyte motherboard (GA-P35-DS3L) that runs the GeForce 7600GS fine but it's only got 256mb on that card. I'd like to upgrade the video card so I can run two dvi monitors and get the 1gb video memory. I have 500watt power supply so that shouldn't be a problem and I do video graphics, no gaming. But I'm concerned about the PCI-E vs PCI-E 2.0. Will the GT430 work on my system?