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About Marty70

  • Birthday 01/01/2015

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  1. the third one is for the tachometer, not necessary here but it doesnt need to be connected to work.
  2. I thought all pwm fans had 4 wires, i was wrong. Then these from digi-key should work OD3010-12HB5-ND. I guess some dc filtering is include in the fan driver circuit.
  3. Thanks i will buy new one from the fbrc, but still wonder why it didnt worked.
  4. I tried to replace mine (a lot of noise and vibration) and failed miserably, the fans never turned. I ordered these from digi-key , sunon MC30101VX-E01U-A99 those are 12vd. Since standard fans have 2 wire my guess is they are not pwm capable fans, though they are driven by pwm from the board. I wonder if its cause from unsmoothed dc from mainboard ? , or those standard fans are special?
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