hiya guys how are ya? just a quick question, i bought two YS-TECH FD1238 120mm Fan - 4 Pin totalling (250cfm). i put them on a fan controller. when i turn them up to full power a clicking sound comes out of the mother board and windows freezes. i turn the power down on the fan controller and everything goes back to normal. i thought it might be the fan controller so i connected them direct to the power supply which means full power for the fans, and i got the same problem > what could it be ???