This guide is provided for information and as it is. Cytron Technologies will not be responsible for any damage or data lost during the installation process. Do backup your microSD card if you have any concern.
- Raspberry Pi 4 Model B 2GB // Any RAM size such as 1GB, 4GB and 8GB should be no problem
- 15W Power Adapter with USB-C wire cable
- 32GB MakerDisk MicroSD Preloaded with Raspberry Pi OS
- USB microSD card Reader/Writer
- Low Profile Aluminum Case
First of all, why subject your Raspberry Pi to this level of stress? In the case of Raspberry Pi 4, the A72 CPU is so powerful that it can overheat if it doesn’t have enough cooling. This results with the CPU being governed (slowed down) to reduce the electrical energy being consumed, and in turn, reducing heat generation. The RPi 3B+ and predecessors could also overheat, however, it was less of a problem for the majority of use cases. A quick stress test, in this case, will reveal if your Raspberry Pi 4 can run at full CPU-load in its case/environment without overheating and not slowing down.
The goal of this tutorial is to create a chart which depicts:
- A stabilization period at the beginning
- A period of time for full-load CPU
- View the CPU temperature
- View the CPU speed (to witness if the CPU is being governed, or not)
There are a million ways to cool down your Raspberry Pi: Small heat sinks, specific cases, and some extreme DIY solutions. Stressberry is a package for testing the core temperature under different loads, and it produces nice plots which can easily be compared.
The run lets the CPU idle for a bit, then stresses it with maximum load for 30 minutes, and lets it cool down afterwards. The entire process takes around 45 minutes. The resulting data is displayed to a screen or, if specified, written to a PNG file.
Step 1: Enclosure installation steps
Install the Raspberry Pi and the three thermal pad to the case.
Insert the side plate.
Mount the copper spacer of the board to the case.
Fix the top cover to the case.
Mount the allen cap bolt to fasten the case and paste the stickers.
The Raspberry Pi now can be power ON.
Step 2: Result for the stress test
I have overclocked and ran the stress test on a bare Raspberry Pi 4 and the Low Profile Aluminum Case to observe how great the enclosure dissipates heat from the Raspberry Pi 4. The chart below shows the stressberry graph for the Low Profile Aluminum Case.
From the chart, we can see that the Raspberry Pi can dissipate heat better with the case. For my observations:
Bare board – the CPU is doing its best to deal with the generated heat. An interesting compromise that appears to be keeping the CPU well below 80 degrees Celsius.
Low Profile Aluminum Case – this type of enclosure applies a passive cooling mechanism and of course it is better than bare board in dissipating the heat. The heat from the CPU is absorbed and dissipated through a wide surface area.
Overclock test – the Raspberry pi is overclocked to observe how far the clock frequency can be increased while maintaining the CPU temperature below 80 degree Celsius. The Raspberry Pi can be overclocked to maximum 2.0GHz with this case.
Now you can see that enclosure for Raspberry Pi 4 is really important in dissipating the CPU heat. Interested in having this type of enclosure for your Raspberry Pi?
Let’s get the enclosure at our Cytron product webpage 😁.
Kindly refer this tutorial for the Stressberry test.