PC fan wiring

Sep 19, 2020 Last reply: 5 years ago 4 Replies

I have a number of ARCTIC F12 fans .... these have standard 3 pin connector for plugging onto a mother board



Anyone able to confirm the wiring of these fans as I will not be using with a PC, but a separate PWM controller.



Plug has RED, BLACK & Yellow I need to confirm which is +V, Gnd and Tacho Assume it will be the order I listed above - but thought worth checking.



The PWM controller does not have 3 pin plug, it has screw connectors.


blk is always ground

given that it has a red, that will be +12 and yellow will be tacho

if it didn't have a red, then yellow would be +12 and sense usually green

rick used his keyboard to write :

Red is +12v, Black ground; yellow is the impulse feedback for rotation speed.

Any good motherboard manual defines these for you too.

The plug on the fan end, has a surface where that alignment "tab" fits.

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Paul

My assumption on Red & Black was correct - Thnx

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