well looks like to me as far as those boards... since no links were given, I went and found asus boards called by those names... 1 board uses DDR2, and the other use DDR3... so depending on your ram that should make it easier... and as far as the 2 DDR3 boards... 1 is Intel one is Nvidia... plan on going SLI? those questions should really make it a LOT easier to choose out of those 3