4 pin PWM fan, can it be powered by +/- only?

Lisapete · 21 Nov 2015 at 21:14

Evening,

This is not fora PC build but something just as important to keep cool running and have airflow. I've looking at using the Noctua NF-F12 industrial PPC-3000 PWM Fans due to the high air flow and pressure.

Is there a super simple way I can power them, I will have a 12V feed with unlimited amps to hand for them.

Can they be powered by just a positive and negative wire?

As you can tell I've no idea here at all what so ever.

Tealc · 22 Nov 2015 at 05:07

Just run the 12v and and ground wires in and the fan will spin at 100%.

Lisapete · 22 Nov 2015 at 14:51

Tealc said:
Just run the 12v and and ground wires in and the fan will spin at 100%.

Sweet, as easy as that huh

rtho782 · 23 Nov 2015 at 09:13

Yup, the other wires are just monitoring (so the board knows how many RPM it is at) and PWM (where the board sets the duty cycle).

Lisapete · 23 Nov 2015 at 16:35

rtho782 said:
Yup, the other wires are just monitoring (so the board knows how many RPM it is at) and PWM (where the board sets the duty cycle).

Thank you, Will get the fans ordered asap and try finding which cables are what.

Fan is 100% Noctua NF-F12 industrial PPC-3000 PWM but 2 of them