adding-a-quieter-power-supply-fan
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adding-a-quieter-power-supply-fan [2013/01/02 04:44] buildrob |
adding-a-quieter-power-supply-fan [2013/01/05 13:25] (current) phracturedblue |
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| Do not connect the power supply to the mains without taking adequate precautions in ensuring that electrocution cannot occur through accidental contact with the mains terminals, cables or internal power supply components. | Do not connect the power supply to the mains without taking adequate precautions in ensuring that electrocution cannot occur through accidental contact with the mains terminals, cables or internal power supply components. | ||
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| + | ===== Measurements ===== | ||
| + | The original fan was measured at 79dB (using a Radio Shack meter) at 2 inches. The meter was set to the side such that airflow was not blowing directly over the microphone | ||
| + | Using the above instructions, the sound dropped to 65dB using the same procedure. | ||
| + | In an effort to further reduce sound, the fan was then reversed so that it was pushing rather than pulling air. | ||
| + | This dropped the measurement down to 60dB (note that the change in airflow could impact the measurement, but the power supply was qualitatively quieter. | ||
| + | Lastly, the fan guard was cut out, exposing the fan directly. | ||
| + | The final result was 55dB at 2 inches. | ||
| + | The supply is still louder than I'd like, but it is a huge improvement. The next step would probably be to fabricate a new top-plate that can hold an 80mm fan to allow slower speeds and quieter operation. | ||
| ===== Other ideas ===== | ===== Other ideas ===== | ||
adding-a-quieter-power-supply-fan.1357123488.txt.gz · Last modified: 2013/01/02 04:44 by buildrob
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