Pc Fan Wiring Diagram. It shows the components of the circuit as simplified shapes as well as the power and also signal connections in between the gadgets. Proper fan connector placement is shown in the figures below.
Fan has a 3 pin power connector. 4 wire pc fan. 120mm cpu 12v dc fan wiring diagram.
One for the positive or hot lead and one for the negative or ground.
Fans on the rear and of the case are usually exhaust fans expelling the hot air warmed up by the components back into the room. Find our new farming channel under honey creek farm i needed to adapt a computer fan to a wall plug so i could use it in an egg incubator. When using a 3 pin power connector with a 4 pin fan header the fan will always be on. Desktop board has a 4 pin fan header.