sudomod

OK, where do i hook up the fan? I see TWO tiny (TINY) fan pads at the very top of the board: however there are THREE wires coming off the fan? What do i do?

Thanks so very much!

Hi,

Solder the red and black wire here

Thanks! So i discard the third wire on the fan?

joeleaux wrote: ↑

Wed Aug 04, 2021 8:09 am

Thanks! So i discard the third wire on the fan?

Correct, you don't need to do anything with the 3rd wire . Normally a fan has 2 or 3 or 4 wires. In your case, you have 3 wires:

A 3-wire fan has power, ground, and a tachometric (“tach”) output, which provides a signal with frequency proportional to speed.

But The Circuit-Sword is sending via voltage DC (I believe) a different current to change the speed of the fan. Which means you dont need the 3rd wire. P.S. first test it with the 2 cables before removing the 3rd wire (just in case).