Power Supply fan

This question should be on a power supply forum, but since it looks like is not a power supply forum, I hope to get an answer here.

I need to replace the power supply fan. It collected dirt, run slower, and sometimes stops.

I bought a power supply fan with tree wires, Black, Yellow, and Green, but the power supply only has two wires: Black and Red.

I connected the Black with Black, and the Red with Yellow, but the fan don’t start.

I suppose that the green is for control (count RPM, or something).

Somebody knows if there is a way to make it work?
3 answers Last reply Best Answer
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  1. I got another fan, this time with red and black wires. It works, but still wish to know how to make work the other.
  2. Best answer
    Electrical code says green wires are for ground. Red and yellow wires in a PC are different voltages, 5V and 12V. No clue why it didn't work. Sounds like it should have.
  3. Best answer selected by marraco.
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