Computer Fan Pinout

3 pin connectors are usually used for the smaller chassis fans with lower power consumption.

Ceiling fan with light kit and remote. Three pin molex connector kk family this molex connector is used when connecting a fan to the motherboard or other circuit board. Chassis and cpu fans may use either 3 pin or 4 pin power connectors. Connectors usually used for computer fans are the following.

There is no fan control. It is a small thick rectangular in line female connector with two polarizing tabs on the outer most edge of one long side. A four wire fan.

The three wire connectors are for small chassis fans with lower power consumption. In computers various types of computer fans are used to provide adequate cooling and different fan control mechanisms balance their cooling capacities and noise they generate. Each of these wires serves a specific purpose.

Fans may be either 5 volt dc or 12 volt dc fans. You can make sure that the system isnt too loud with the fan only spinning up faster. 3 pin connectors are usually used for the smaller chassis fans with lower power consumption.

Note that chassis and cpu fans may use either 3 pin or 4 pin power connectors. A fan with a 3 pin power connector may be easilly fitted into desktop board with a 4 pin fan header. If the connector fits the pins itll work and you dont have to worry about the pin arrangement.

A 4 wire cpu motherboard fan is a standard brushless dc bldc fan but has four wires extending from the casing. Most computer motherboards come with a standard connector for the fan and it only fits one way. Of course all you need is the red and black wire to run your computer fan but if you didnt know what the extra wires are for this video may help you out.

The four wire connectors are for processor fans with higher power consumption. Chassis and cpu fans may use either 3 pin or 4 pin power connectors. 3 pin connectors are usually used for the smaller chassis fans with lower power consumption while 4 pin.

If you need to install a 3 wire computer fan forget the wiring diagram. The tacho signal from the fan sinks to ground for every revolution the input on the motherboard is pulled high. When connecting a three wire fan to a four pin fan header the fan is always on.

Controlling the cpu fan speed in your pc or all the fans in fact is a way to give you more control over your windows 10 experience. Pins are square and on a 01. 3 pin fan and 4 pin motherboard connector compatibility.

This is commonly accomplished by the motherboards having hardware monitoring circuitry which can be configured by the end user through bios or. A three wire fan connecting to a four pin fan header. If your pc is working just fine and youre happy with how loud its fans are you dont need to adjust your cpu fan settings.

Fans and on board fan headers are backwards compatible.