Try it without it first, I'm running a PERC 5/i in my x58-based I7 system right now as I type this, and it's working perfectly with the dell firmware. Windows 7 64-bit has native microsoft drivers during install and "out of the box", it was found, drivers loaded, everything running smooth. No pin mods, all my ram is visible, and I can load a ram drive for my full ram amount, everything works perfectly.
You should also be aware if you're using a primary video card for 3D gaming in the first pci-express slot, and this raid card in the second slot, it will most likely reduce your main video card down to 8x pci-express speeds instead of the usual 16x.
I'm not sure if it will really effect performance much, but it's just a bit you should know. Also I don't have the motherboard you mentioned so I'm not entirely sure if it will down-grade the video card or not, but a friend of mine has a Z77 system and he installed a pci-e 1.0 1x wireless card and it dropped his video card down to 8x.