Good monitor, I have the same one
ahh, you don't need to worry RiD, you are using hybrid SLI, but your computer cannot handle it, you need to reboot your computer and load the bios, from there you need to go into integrated pheripherals and look for onboard GPU, disable it and that error will disappear along with the extra card.
Edit:
the nForce 7050 is the chipset of your computer, the drivers are loaded by default once you disable your onboard graphics card, you don't need to worry about that.