KKSB Raspberry Pi 4 Aluminum Case Review

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KKSB is a Swedish firm designing and manufacturing metallic merchandise for varied open-hardware merchandise corresponding to single board computer systems together with Raspberry Pi, Arduino, ODROID, Orange Pi and others, in addition to cell phone and pill stands, they usually even have a mini-ITX case deliberate for March.

The corporate approached CNX Software program to overview their newest Raspberry Pi Four case, and I used to be to learn how it could deal with cooling.

KKSB Raspberry Pi Four Case Aluminum Unboxing

So I lately acquired the enclosure in a largely white package deal.KKSB Package
The case is available in two components in addition to a thermal pad for the processor, mounting screws, rubber pads, and two plastic bits for the LED.

KKSB Raspberry Pi 4 Case Aluminum 720Click on to Enlarge

Aluminum Case Meeting

First, peel over the plastic movie on one facet of the thermal pad, and place it on the extrusion for the processor on the highest a part of the enclosure.

Raspberry Pi 4 Thermal Pad EnclosureTake away the second plastic movie from the thermal pad, and place the Raspberry Pi Four on high in order that the processor is available in contact with the thermal pad. Place the underside half on high, and tighten it with the 4 screws.

KKSB RPi 4 Case AssemblyYou’ll discover a small opening on the facet for a ribbon cable for folks wanting to utilize the GPIOs. There are additionally two holes for wall-mounting and three extra cutout traces that have to be to let the WiFi alerts undergo (I can verify WiFi continues to be working).

We simply want to stay the 4 rubber pads on the underside of the case, and glue the plastic bits for the LED to finish meeting.

KKSB Raspberry Pi 4 Metal EnclosureClick on to Enlarge

There’s one other opening on high of the MicroSD card and LEDs that must be for the MIPI CSI digicam and/or the MIPI DSI show.Raspberry Pi 4 Metal Case

Upgrading Raspberry Pi Four OS and Firmware

Earlier than testing, I up to date Raspbian and firmware to the newest model with apt:

Be aware that I needed to make some adjustments first as a result of points with rpi-monitor internet hosting server.

Listed here are the assorted variations of Linux kernel, Raspbian working system, and ThreadX and VLI firmware put in:

Let’s entry RPI-Monitor in our internet browser and wait till the CPU temperature stabilizes. Be aware the room temperature is round 28°C.

Raspberry Pi 4 Aluminum Case Idle TemperatureClick on to Enlarge

The left of the chart is idle temperature after a number of hours after the replace, and as soon as we reboot and the brand new firmware takes impact we are able to see the temperature drop.

Benchmarking Raspberry Pi Four Clocked at 2.Zero GHz

One factor I forgot was that one of many final checks I did with Raspberry Pi Four was to overclock it to 2.Zero GHz, so it was nonetheless on this state once I first examined it. No drawback, let’s attempt one of many worst instances first (now it even assist overclocking as much as 2.1 GHz).

I then put in & began to run the newest model of sbc-bench script:

However stopped ready a bit longer for the temperature to stabilize at round 57°C. Let’s begin the benchmark once more:

If we take a look at the log we are able to see the 7-zip multi-threaded check crashed as soon as as a result of working out of reminiscence on my 1GB RAM RPi 4. The throttling bit is about however it should have been a really brief time because it doesn’t present within the frequencies displayed within the log:

The chart additionally reveals the temperature peaked at round 80°C.

Raspberry Pi 4 2-GHz CPU Temperature KKSB CaseClick on to Enlarge

Benchmarking Raspberry Pi Four at inventory 1.5 GHz clock

Let’s disable overclocking reboot, and look ahead to CPU temperature to stabilize (round 51C this time), earlier than restarting sbc-bench.sh:

Not throttling detected in any respect this time, and the temperature chart seems good with the CPU temperature by no means exceeding 66°C.

Raspberry Pi 4 Fanless Metal Case TemperatureClick on to Enlarge

Conclusion

KKSB Raspberry Pi Four aluminum case does an excellent job of cooling the board even when overclocked. WiFi nonetheless works, and the case offers openings for GPIO’s and MIPI CSI/DSI modules, in addition to mounting holes. The corporate sells it for 31.92 Euros on their web site. In the event you assume that’s a bit too costly, the KKSB Raspberry Pi Four case black/silver can also be fabricated from steel, sells for under 15.12 Euros however lacks the extrusion for cooling the processor, so that you’d have so as to add your personal heatsink and cooling is not going to be as environment friendly.

You’ll additionally discover low-cost Raspberry Pi Four aluminum instances on eBay, however observe that a lot of them include a fan, lack the extrusion for cooling the processor, the openings for GPIO and MIPI cables, and should intrude with WiFi. Simply be sure to double-check the options which are vital to you.