4 Wire Computer Fan To 2 Wire

A 2 wire fan is controlled by adjusting either the dc voltage or pulse width in low frequency pwm.

4 wire computer fan to 2 wire.

Fancasee 2 pack 4 pin pwm fan power supply cable 1 to 2 splitter 2 way pc internal motherboard fan power extension cable adapter cord wire for computer atx case 4 pin 3 pin cooling fan cable 10 5. I think if you can figure out which two wires are ground and 12v and leave the other wires open i e. If i put the wires in wire connectors and insert them into a 4 pin head can it function in the 4 pin fan slot on the motherboard. To power the fan you need an external powersource in this case i used a 12 volt 1 5amp dc adapter.

The machines have a single fan located in the wind tunnel outlet with no inlet filter. Of course all you need is the red and black wire to run your computer fan but if you didn t know what the extra wires are for this video may help you out. Cap the black wire of the 12 3 cable and leave it untouched in the junction box. Ground 12v pwm input and speed sense output.

The four wires are. Pwm in brief uses the relative width of pulses in a train of on off pulses to adjust the level of power applied to the motor. Connect the red wire of the 12 3 cable to the black wire of the 12 2 cable. I was using a 4 pin cpu fan red black yellow and blue.

My replacement has only 2 wires red and black. Have you wired 2 4 wire 24v computer fans to a shared 4 pin fan control. But any other source that meet the requierements ofthe fan wil do. I m referring to my welding machines electronics inverters and transformers cooling.

Not connected then the fan will turn at full speed. Splice together the two white wires. 4 wire fan wiring. The wiring colorcode for fan i used is as follows.

Alternatively use the red wire as the hot wire.