i need to solve a doubtm, i want to buy the Corsair Air Series AF120 led fan case, the question is about the conector , the specs of the fan says that it has a 3 pin conector ,but looking at my board intel dh55pj i can see that my pc extra ports for fans have 4 pins, can i conect the 3 pin conector onto the 4 pin conector of my mobo? or is not possible?