Do fans with 3 pin and molex both have to be used?

LiamHUD

Reputable
Aug 26, 2016
56
0
4,630
So if a fan has a 3 pin wire and a molex. do both have to be plugged in or could you just get away with connecting the molex without plugging 3 pin in?

Thanks bro's
 
Solution
Does the 3-pin connector have only one wire? If so that is made to connect to a motherboard header so it can sense a CPU cooler fan is connected. A safety feature.