ok, so im new (ish....about a year) to pc's and have recently built my current rig (in sig) so when i was buying parts i ended up getting the asus m5a78l-mlx v2 mo bo over an 970 extreme 3 as i was told by the shop i could get a hybrid xfire with the intergrated graphics and the 6670 gddr3 i brought at the same time, so i got them waited a bit for a cpu then built it, and i cannot for the life of me work out how to do this can any one nudge me in the right direction plz?