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Step 3Deciding on the right resistor.
To decide what would be the right resitor I simpy expermented.
I hookd the fan up with a 12 powersupply and added some resistors to find the best result as far as noise and reasonable fanspeed were concerned.
I found a 56 ohms resistor (green-blue-black-gold) giving sufficient speed reduction to get rid of the whining noise while maintaining a reasonable fan-speed.
I also took a small piece of white insulation to fit tightly over the resistor, so none of the bare metal can cause any problems.
I hookd the fan up with a 12 powersupply and added some resistors to find the best result as far as noise and reasonable fanspeed were concerned.
I found a 56 ohms resistor (green-blue-black-gold) giving sufficient speed reduction to get rid of the whining noise while maintaining a reasonable fan-speed.
I also took a small piece of white insulation to fit tightly over the resistor, so none of the bare metal can cause any problems.
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