I have 2* 140mm NZXT Aer fans in my s340 elite case, though since the back-fan can only be 120mm, no aer can be mounted there. The aer had to go up and infront, though this causes problems due to the fact that the fans suck through the rgb side and blow it out the other side, but this causes weird airflow issues because i want the fans to suck instead op blow. How do i reverse the fan rotation on a NZXT 140mm aer fan?