I have a compatibility question? My mainboard is Intel BOXDZ68BC - socket 1155 base It has 2 PCIe 16X I did my homework on the ati radeon 6000 series. It seems to me the best or second best card to get is the MSI Radeon R6970 Lightning. My ? is: Is it compatible with my mainboard (Intel BOXDZ68BC)? The Video Card is about $400 dallors.