Thank you for the reply. I think I will just sell the corsair vengeance and buy g skill ares since they are comaptible and use them instead. I do however have other questions. I using ASrock z77 extreme4 motherboard and it has a 4 pin and 3 pin for connecting cpu fans. Since both of the fans that came with nh-d14 are three pins should I used the y splitter and connect both fans to the 3 pin labeled cpu fan 2 or should I connection one to 4 pin and the other 3 pin? If I do use the y splitter to connect both fans to the 3 pin will the motherboard still have the fan control or will the fans be at full speed?