Ok i am a complete noob to crossfire and X2 cards. I have enabled Xfire in ccc and have used msi afterbruner to OC to 725/1125(same my old single 4850 was set to). Now the question is, if you have had this card what is the max OC you were capable of? I have no clue what this card is OC capable. I have heard that it is not OC friendly as it is an x2 and they can be difficult. Also using 10.2 drivers.