Convert 3 Pin Fan To 4 Pin Pwm

Identifying fan type 3 pin or 4 pin pwm. Hi i just brought a artic cooling 120mm pwm fan from pc case gear. Some fans may have a 4 pin connector but only 3 wires going into the back of the connector.

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4 pin fan controllers hand off the pwm signal to the fan itself and these fan controllers supply an uncontrolled a 12vdc.

Convert 3 pin fan to 4 pin pwm.

If you try to use a 3 pin fan it will run at 12 volts all the time regardless of pwm setting. They wont take it back so i need to find a solution. It didnt say on their website that it was 4 pin so i asumed that it was 3 pin. Phobya has tackled this problem and now presents an elegant simple solution with the 4 pin pwm to 3 pin converter.

Controlling 3 pin fans through a pwm signal was an unsolvable problem. With the 4 pin pwm to 3 pin transformer all 3 pin fans can now be controlled with a normal pwm signal. With the 4 pin pwm to 3 pin transformer all 3 pin fans can now be controlled with a normal pwm signal. Teamprofitcom pwm fan splitter adapter cable sleeved braided y splitter computer pc 4 pin fan extension power cable 1 to 3 converter 10 inches 2 pack 4 7 out of 5 stars 1 453 9 99.

Controlling 3 pin fans through a pwm signal was an unsolvable problem until now. 3 pin fans will power up at 4 pin connectors but only at full speed. Phobya has tackled this problem and now presents an elegant simple solution with the 4 pin pwm to 3 pin converter. A 4 pin pwm fan connector will have four square holes on the front and four wires entering the back.

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This is probably why they are not able to speed control your fan. This is still considered a 3 pin fan. Also if you don t have a 4 pin pwm fan plug on your motherboard any fan you hook up will run at full voltage and not be speed controlled.

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