[Amazon.ca] 100% Claimed - ---LABISTS Raspberry Pi 4 Starter Kit 4GB **Deal of the Day**
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- March 17, 2020
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Mar 17th, 2020 2:49 pm
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Mar 17th, 2020 2:51 pm
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Mar 17th, 2020 3:09 pm
correct, fan is VERY loud. Also, first case I received with the bundle caused the board to restart, probably something wrong with the geometry of it or something. Replacement one (same case) worked fine.
Mar 17th, 2020 4:03 pm
Mar 17th, 2020 4:13 pm
Mar 17th, 2020 4:35 pm
Your right this one was better
Mar 17th, 2020 4:59 pm
Its never recommended but..
Mar 17th, 2020 6:58 pm
There is absolutely nothing wrong with that. It is just a simple DC motor and can work at varying voltages. Going above the rated voltage (5V in this case) however may cause the fan to burn out, due to the heat, melting the insulation of the winding inside and causing a short.lead wrote: ↑ Its never recommended but..
trying running fan off the 3.3v if its a 5v fan. that will quiet it down. most would recommend a diode tho to drop the voltage to be safer vs right off the 3.3v pin. But that choice is yours. Just something you could google to learn more about so your advised of potential problems to your rpi. I use the flirc case myself.
Or consider seeing/inquiring if its already a 3.3/5v fan that was included.
Mar 17th, 2020 11:46 pm
actually drawing too much power tends to cause the same burn out but in other places. For example the same logic behind using too little amps vs too much amps. Too little amps when the device requires more over works the power supply = burn up and smoke.
Mar 17th, 2020 11:54 pm
I have been doing this for over 20 years now. You talk from theory, I from experience. Even 12v fans can be run on 5v or even lowerlead wrote: ↑ actually drawing too much power tends to cause the same burn out but in other places. For example the same logic behind using too little amps vs too much amps. Too little amps when the device requires more over works the power supply = burn up and smoke.
the 2 common concerns were for this scenario were. that the rotating voltage would back feed unrated voltage to the pin at shutdown but thats not a concern on brushless. 2) drawing 5v on a 3.3v line may overheat the pin at bootup where the fan is "still" and peak voltage is drawn to start spinning.