Pc Cooling Fan Pinout
A fan with a 3 pin power connector may be easilly fitted into desktop board with a 4 pin fan header.
Pc cooling fan pinout. Most computer motherboards come with a standard connector for the fan and it only fits one way. 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. The three wire connectors are for small chassis fans with lower power consumption. Three wire and four wire fan connectors.
If you need to install a 3 wire computer fan forget the wiring diagram. I could not find much on how to make the the 4 wire cooling fans so i made this video for using the fan with a voltage controller. Fans with three pin connectors must be used on 3 pin cpu fan pinouts. Three wire and four wire cpu fans whats the difference.
Home cooling fans. The red wire provides power. In this article i will explain the basic and most common fan type. Fans and on board fan headers are backwards compatible.
The fan that i study is a 3 wire 4 coils 80mm fan rotating at 2200 rpm. Dell nn495 fan 12v 4 wire 5 pin shroud for opti dim smt. The tacho signal from the fan sinks to ground for every revolution the input on the motherboard is pulled high. Fan control is the management of the rotational speed of an electric fan.
There are may types of pc fans that are assembled in different ways. How to make the 4 wire cpu cooling fan work. 4 pin connectors are usually used by cpu fans with higher power consumption. Chassis and cpu fans may use either 3 pin or 4 pin power connectors.
Chassis and processor fans use either a three wire or four wire connector. The highest quality genuine spare pc parts same day shipping until 5pm cst monday friday superior customer service easy no hassle ordering and returns technical expertise. When no revolutions are sensed by the system an audio alarm or no system boot will occur warning the user or preventing proccessor overheating and burnout. The simplest pc fan requires two wires.
3 pin connectors are usually used for the smaller chassis fans with lower power consumption. If the connector fits the pins itll work and you dont have to worry about the pin arrangement.