Computer Fan Wire

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

Whole house fan remote control. A four wire fan connecting to a three pin fan. The yellow wire pulses an output voltage twice per fan revolution. 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.

There is no fan control. 4 pin connectors are usually used by cpu fans with higher power consumption. 3 pin connectors are usually used for the smaller chassis fans with lower power consumption.

Connect the red computer fan wire to the positive terminal of battery 1. Chassis and cpu fans may use either 3 pin or 4 pin power connectors. A three wire fan adds a tachometer output to the two wire fan.

With the fan spinning at 6000 rpm you would measure a 200 hz pulse rate 6000 revmin 60 s 2 pulsesrev 200 pulsessec. A 4 pin fan uses its first three wires the same way a 3 pin fan does. The four wire connectors are for processor fans with higher power consumption.

Fans and on board fan headers are backwards compatible. Connect the other switch terminal to the negative terminal of battery 2. A four wire fan connecting to a four pin fan header.

Chassis and cpu fans may use either 3 pin or 4 pin power connectors. Note that chassis and cpu fans may use either 3 pin or 4 pin power connectors. Instead of simple speed up or slow down controls the fan can be set to specific fan speeds as the cpu gets hotter.

A 4 wire cpu motherboard fan is a standard brushless dc bldc fan but has four wires extending from the casing. The fourth wire connects to a circuit on the main board thats used to control the fan with precision. Fans and on board fan headers are backwards compatible.

You can make sure that the system isnt too loud with the fan only spinning up faster when your pc gets warm. Connect the negative wire of the computer fan to one of the terminals on the switch. Strip 12 of an inch of insulation off of the red and black wires attached to the computer fan.

4 pin connectors are usually used by cpu fans with higher power consumption. Each of these wires serves a specific purpose. 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.