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I have a 5v usb fan and I want to reduce the speed. how would I do it? thanks? Answered

I have a 5v usb fan and I want to reduce the speed. how would I do it?
The fan on my laptop cooler is too loud and I need to lower it.
thanks

Tags:pcfan

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Re-design

7 years ago

A smaller resistor. Try a few hundred ohms. You may only need 10 ohms.

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Re-design

7 years ago

Put a resistor in series with the fan.

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rayjaiRe-design

Answer 7 years ago

I tried that and the fans stopped working. what resistor should I get?

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legomaster50

7 years ago

Feed lower voltage to it like say maybe 3.5 volts that might slow it down. pm me if this doesnt work