Questions tagged [cooling]

Use for questions related to cooling the Raspberry Pi.

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75
votes
4answers
9k views

Can I use an airtight case?

Is it possible to reliably run a Pi in an airtight (watertight) case or is some form of ventilation required for cooling? I'm assuming it doesn't chuck out too much heat, but am wondering whether ...
31
votes
1answer
18k views

What are the maximum operating temperatures of the components?

What are the main sources of heat on the board? What temperatures do these components reach under load?
14
votes
3answers
930 views

Is it possible to immersively cool a device?

With reference to recent questions about overclocking (ie. What are the overclocking capabilities? ), is it possible to immersively cool the Raspi? Presumably such a system would have to rely on ...
10
votes
6answers
21k views

Raspberry Pi cooling; Blow cold air in or suck the hot air out?

I'm attaching a fan to the RPi's original case. I wanted to use a laptop cpu fan. Should I suck the hot air from RPi? or blow cold air inside the case? Btw, there's a heatsink on the Soc and LAN & ...
7
votes
1answer
4k views

What are the cooling requirements for Raspberry Pi 3?

The new Raspberry Pi 3 has been beefed up from the previous version. Now it comes with a Broadcom BCM2837, which is an ARM v8 quad-core Cortex-A53, clocked at 1.2GHz. I have also seen somewhere a ...
6
votes
4answers
46k views

Cooling fan powered directly from GPIO?

I have a Pi3 in a fairly enclosed environment, and I found that, even when my Pi was relatively idle (5% CPU usage) the CPU temp was averaging around 80C, which is close to the 85C where the Pi starts ...
6
votes
2answers
2k views

Are resistors required for builtin PWM fans?

There are many guides on how to set up a 5V fan for a Raspberry Pi and control its speed with PWM. Usually, this includes using a a transistor a resistor between the PWM pin and the transistor gate ...
5
votes
5answers
8k views

How do I control GPIO-connected fan via code at a certain CPU temperature?

I have just bought a 5v Pi fan for my Pi3. I'm using Retropie 4.1 for the OS. I have connected the red and black wires of the fan to ground and GPIO 18 respectively. How can I get the fan to start ...
5
votes
2answers
513 views

Enclosing the Raspberry Pi in a Plushie

As I've seen previous projects with the Raspberry Pi being enclosed in stuffed animals and plushies. I've wanted to attempt a project in a similar environment. Will there be a problem with overheating ...
4
votes
4answers
9k views

How to program active cooling connected to GPIO

I have Raspberry Pi 3b+ with the case, which has a small 5v fan, which is connected to GPIO. Look to picture below: The Fan runs continuously, but I don't want continuous operation. I want the fan to ...
4
votes
4answers
963 views

Did I destroy my GPIO board?

I bought a 30mm DC fan to cool off my Pi. It worked just fine if I plugged it into the 5V and GND pins. However, I wanted it to be programmatically controlled, so I plugged it into pin #18 and GND. ...
4
votes
1answer
5k views

How does a Raspberry Pi deal with high temperature?

Is there a overheating protection circuit integrated into the Raspberry Pi like in desktop processors from Intel or AMD? When I did research about this question I just found vendor specification about ...
4
votes
0answers
88 views

What do I need to consider when creating a case? [duplicate]

Possible Duplicate: Running in an airtight case. Does it need ventilation? Do I need to use fire-proof materials?
3
votes
3answers
2k views

Can I control a 4-pin fan with a Raspberry Pi without adding more circuitry?

I'm interested in adding a fan to my Raspberry Pi 4, but I would like to be able to control when it is on/off programatically. However, what I see is that most of the fans suitable for Raspberry Pi ...
3
votes
2answers
796 views

Cooling down the Raspberry Pi 3 in a Vacuum

I'm working on a small little project involving the Raspberry Pi 3 and the LSM9DS1 Breakout board from Adafruit. We plan to place the Pi and the sensor board in a high radiation environment (but ...
3
votes
2answers
1k views

Control USB fan via relay

I've just bought a usb fan to cool down my router during the summer as it gets very hot. However, since i don't need to keep it on continuously, i was thinking about a solution to automate its usage ...
2
votes
2answers
35k views

Where do I plug in a 5V mini fan on a Raspberry Pi?

I have a Raspberry Pi 3 Model B+. I am currently installing the Pi into a Super Tinytendo case, which came with a built-in mini fan. However, I'm not sure which set of pins I should plug the fan into. ...
2
votes
3answers
9k views

Will 3.3v gpio work for a fan without hurting the pi?

Will it hurt the pi if I run a fan on the 3.3v gpio? I have a hdmi lcd screen on mine and I don't want to use the usb ports for a fan. I have a raspberry pi 3 by the way
2
votes
4answers
7k views

Raspberry pi Model B - Control a mini fan

I bought a 5v mini fan from aliexpress and got it today. Its working fine...but its a bit too loud for my taste. Its connected to pins 4, 6 (??!? not sure) Is there a way i can controll it by ...
2
votes
3answers
188 views

Will a fan cool my Pi 3?

Will a fan cool my Pi 3 without heatsink? I'm using it for some hard-core gaming and it's heating up enough that the thermal warning comes up and I don't want to use heatsink because the case I've got ...
2
votes
2answers
114 views

raspberry pi fan don't start to spin without hand help!

Raspberry Pi has recently added fan control feature in its raspi-config tool. This made me curious to add a fan to my RPI 4. I did it recently with a 680-ohm resistor, 2N2222 transistor, 1N4007 diode, ...
2
votes
3answers
19k views

How to connect a regular CPU-Fan to the Raspbrery Pi 2 B

We're running a Raspberry Pi 2 B as a Tomcat-Server and meanwhile it became quite warm so I'm thinking of using one of the old CPU-Fans (12V) we're having around. Unfortunately I couldn't find any ...
2
votes
0answers
149 views

Cooling Fan Hat?

The PoE hat has a built-in cooling fan, and even has drivers in Raspbian to automatically turn it on and off based on the CPU temperature. However, any guides to add a temperature-controlled fan seem ...
1
vote
3answers
975 views

Raspberry Pi case ventilation necessary?

I have a Pi 3 B+ that I am using as a portable media server, and it can get quite warm. I need a case for it, and I have been looking at a few, however very few of them have any sort of ventilation. ...
1
vote
3answers
2k views

PWM Fan causes clicking sound

I am using PWM to control the speed of the fan on my RPi 2. The problem is, when I am PWMing it, a clicking sound can be heard from the fan. I am using a 6v power supply for a 5v fan to compensate ...
1
vote
2answers
71 views

Shields and access/share of power supply for fan

Deconz Raspbee II, Dresden Electronics shields occupy 10 pins of Raspberry PI, including all 5 V / 3 V. At same time the DIN casings for Raspberry PI do often provide, a fan that needs a power supply ...
1
vote
2answers
217 views

Does installing a fan need inrush current protection?

On the internet, I found this plan to install and control a fan: I wondered whether one needs protection against inrush current since I heard a fan might draw quite some current when it is starting ...
1
vote
1answer
2k views

Fitting a CPU Cooler on a Raspberry Pi

I have been looking into cooling solutions for the Raspberry Pi, are there any CPU coolers out there that will fit on the Raspberry Pi CPU? I know there will be an overhang of the cooler on the CPU ...
1
vote
3answers
84 views

Raspberry PI cooling

I have just recently got a Raspberry PI 4B with 8GB RAM and I am wondering how much cooling is necessary. The usecase will be installing Arch Linux and using it as my daily driver, so it probably has ...
1
vote
1answer
126 views

Do i need a fan, or will ventilation holes suffice?

this setup has not yet been completed. I'm only asking so I can order a fan if needed I plan on connecting the following elements directly to my pi4- relay(i think I'll need two) small LED with ...
1
vote
1answer
1k views

Will thermal paste help in cooling down the CPU of my Pi 4 even further?

I have the latest Raspberry Pi 4 (8gb edition), I'm using my Pi as a server to host a website, and to host a Discord bot that is being used in more than ~800 servers right now. I overclocked my Pi, ...
1
vote
1answer
168 views

does a heatsink for RPi3 processor needs to be exactly centered?

Does a heatsink for RPi 3 processor needs to be exactly centered ? It fell while I was "aiming" for the processor with the board in its case (I know, sloppy). Thankfully the thermal pasted heatsink ...
1
vote
4answers
2k views

do I need radiator for Raspberry PI 3 model B [duplicate]

I am going to build cluster with Raspberry Pi 3 Model B. I am going to buy dozen of raspberry. and I wanted to know if I need radiator too
1
vote
2answers
4k views

Automating my fan based off of the CPU temperature

I just got a fan for my Raspberry Pi 2 model B. It uses the GPIO pins. The fan works well but makes a lot of noise. I want to get the fan to switch on and off depending on the temperature of the pi. I'...
1
vote
1answer
274 views

How to dimension a heat pipe + radiator for passive cooling of the RPi 4 B?

I'd like to cool a Raspberry Pi 4 Modell B with passive cooling only. To get the heat away from the chip I'd like to use a heat pipe and radiator to distribute the heat. Something like this. My ...
1
vote
1answer
1k views

Is it safe to connect a 3.3v fan to gpio instead of power? [duplicate]

I have a Raspberry Pi 4B and a fan. According to the instructions paper of the fan, it should be connected to a ground and a 3.3V power , or a ground and a 5V power. So I've used the former setup ...
1
vote
1answer
330 views

Is it safe to paint the Raspberry Pi PCB and microchips to give it a different color, and if so, are there recommended products?

In the O'Reilly book "Raspberry Pi Hacks" there is Hack 40 "Make Your Pi Water-Resistant (Without a Case)" in which they describe how they make a Raspberry Pi temporarily water-resistant using ...
1
vote
1answer
900 views

Does this flat heat sink even work for cooling?

I bought a raspberry pi 4 case, and it came with these heat sinks you see in the picture + a fan. From the sizes, I guess the flat heat sink is for the CPU. I kind of find it hard to believe that this ...
1
vote
1answer
35 views

Controlling array of fans

So I'm building a stack of Pi's and the case I'm buying comes with four fans. I want to use a Pi Zero (ideally, but whichever one will work is fine) to control all the fans but I have no clue if this ...
1
vote
1answer
836 views

Powering a 5 volt fan from GPIO

I found a 5 volt fan from an Acer laptop, and want to fit it to my Pi (sunon maglev fan GC055515VH-A). It has three wires - red, black, and yellow - why is that?! The unit does not state its ...
1
vote
1answer
258 views

Pigrrl 2 case and cooling fan

I know how to set up a fan on a Pi 3. But can I attach this fan to the GPIO under the Pi by soldering it and will it affect the PiTFT that is actually attached to the Pi GPIO on top? And could the ...
1
vote
1answer
2k views

Will a USB powered fan cool my Pi 3 with a touchscreen attached and will it draw to much power?

I have seen tutorials that show a fan plugged into the USB port to cool the Pi, would this overload the Pi? Is it necessary to use a fan at all?
1
vote
1answer
500 views

Is cooling needed to be able to overclock the Pi further?

I've only managed to overclock my Pi to 1.3 GHz, but this guy here http://www.overclock.net/t/1404207/extreme-cooled-raspberry-pi got it up to 2.4GHz. Is it the cooling that makes it possible to get ...
1
vote
0answers
83 views

Getting pi-fancontrol to work when running Ubuntu

I've got a fan connected to GPIO 14, but am having trouble getting pi-fancontrol to work on my Ubuntu 21.04 install on an RPi4. The official docs say to run snap connect pi-fancontrol:gpio pi:bcm-...
1
vote
1answer
49 views

Raspberry Pi cooled with a Peltier cell [closed]

I've an RPI3B+ mounted in an IP65 box and placed inside a greenhouse. Obviously the CPU becames really hot during the day and it reaches 80°C (even after the installation of the small heatsinks). I ...
1
vote
0answers
40 views

How to power RPi with fan from single source?

Electronics beginner here. I have Raspberry Pi 4 GB variant. I have the following power requirements: power a 5V cooling fan 12V cooling fan (a spare cooler master)thanks @Milliways safely (i.e. ...
0
votes
2answers
253 views

Cooling problem

I'm going to put my raspberry pi zero in a water/air tight box outdoors, but I'm worried that it might overheat with it preforming tasks all day and sitting in the sun. Considering that, I want a way ...
0
votes
2answers
58 views

Running temperature options

I have new RPi 3B+ intended to run 24/7. I am looking to ensure it doesn't overheat, so am wondering whether having wired ethernet would make it run cooler than using the WiFi? The Pi is situated ...
0
votes
1answer
2k views

Raspberry PI 3 fan doesn't work

I have connected fan (5V, 0.2A) to raspberry pi 3 on pins 2 and 4. When I turn on raspberry, fan doesn't work. Does fan should start with turning on raspberry? Or I have to setup some configuration to ...
0
votes
1answer
364 views

Comfortable long-term operating temperature for Raspberry Pi 4B [closed]

I have a Raspberry Pi 4B 8GB running non-stop under a fairly mild load. Among other things, it serves a somewhat large PostgreSQL DB, but the mean CPU usage rarely exceeds 25%. There is a Low-Profile ...