I just got a new CPU, the Intel Dual Core 2 Duo. Straight out of the box, I didn't make any modifications to ANYTHING, but I plan to play games, mainly Trainz 12. I plan to upgrade the video card to either the AMD HD 4670 or 5670. Is the mentioned CPU motherboard compatible with either of the two video cards? Will the game run smoothly on maximum settings??? Will the game actually run OK? sorry, I don't know anything about the moterboard. Thanks!!!