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I have Nidec Gamma32 D12F-24BS4 15BH2 blowing fan cooler. It has very strange coloring for wires: red-white-black-yellow.

Probably two of wires are GND and +24v and other two are signal and PWM. What is the correct pinout for this connector type?

Below I attach photo of this connector and photo with comparison to standard 3-pin molex connector.

enter image description here

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  • \$\begingroup\$ Please provide a link to the manufacturer's datasheet for the fan. It's always possible that this fan has a non-standard, proprietary connection. \$\endgroup\$ – Elliot Alderson Jun 19 at 17:49
  • \$\begingroup\$ I tried to find, but could not. \$\endgroup\$ – ont.rif Jun 25 at 20:58
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It is partly answer to my question: black wire is GND and red wire is +24v.

It became clear after I saw the layout on the board:

enter image description here

The tracks on the board for the yellow and white wires are very thin, on the other hand the tracks for the red and black wires are thick.

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