It'll work but you may get better performance installing additional current drivers. Don't forget the Intel chipset INF update you can get from Intel and you download the latest HD Audio driver from realtek and grab the lan driver from Gigabyte's web site under your motherboard and version.
I'm running Win 7x64 on a P35 which dropped a spanned volume awaking from sleep.. the chipset inf resolved that. With my x58 I was getting 60MB/s transfer rates Raid 0 to Raid 0 on the Intel Raid controller, after INF update 150MB/s