i ordered the panaflo for my Thermalright XP120 with a 3-pin connector ... turns out my cpu fan connector is 4-pin. i simply connected it to system fan connector and it works no problem but now i cant ...

Am putting together a PC and have run into a problem with the MB/case. The case fan has a 3-hole connector and all system fan connectors on the MB are 4-pin. Case: Fractal Design Define R5 Black ...