Rpi Fan Quiet Mod
2d 20h ago by lemmy.ca/u/ProbablyBaysean in dull_mens_club
My rpi has been really loud with its fan for the last long while. I could still hear it behind a cupboard and a door. While diagnosing a usb thumb drive's i/o issue, I decided to dampen the sound.
Using 6 roofing screws, I pulled the rubber and metal washers off and put on the fan mounts to the case. It has had the effect of increasing the mass of the case and reduced the sound in pitch and volume, I expect the lower pitch will be easier to muffle.
It is much less annoying.
The washers were a bit larger than the fan mount plastic sockets. I did not try to force it to sandwich between the fan and the case.
If you don't launch heavy tasks, you can plug your fan on the 3V pin instead of the 5 V pin. That's what I have done and it's working great so far.
So I looked into it:
I have a 2 prong connected power source, A 1 prong needs to be in ground, and the only pins with power and adjacent to ground is 5v.
There are some options with getting a mofset and control by gpio or splitting the sockets but I didnt want to add scope creep
The two 3v3 pins are not consecutive to Ground pins. You need another connector for your fan, or plug extensions cables. https://pinout.xyz/pinout/pin1_3v3_power/
A Flirc case works well too.
Yes, I could have spent money on the case this late in the game, but I thought 20 mins and some spare washers was easier and I wouldn't have to think about this project for the next two days.