Radxa Zero 3W temperatures too high even using the heatsink created especially for the radxa 3W

I’ve installed FreeBSD on the Radxa 3W,not Linux. Probably FreeBSD does not have the driver which support the Socs internal sensors. So. I should low the temperature via hardware.

Good luck fixing software bugs ‘via hardware’. Just realized that I even have a Radxa 3W review in my collection: https://github.com/ThomasKaiser/sbc-bench/blob/master/results/reviews/Radxa-Zero-3W.md

With proper settings this board as every other RK3566 device idles below 35°C, so either FreeBSD is overvolting the SoC massively which results in those insanely high temperatures or calibration for the thermal sensor is broken or it’s the wrong sensor or a combination of all these issues.

But be assured: RK3566 with proper settings/software shouldn’t need a heatsink.

Hey Mario can u message me on fb I got a question for u if you can run a couple of tests

I’ve sent you a private message here.

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Passive cooling with FreeBSD is not enough to reach and keep a cpu temperature of 50 C. So,I will try this new heat sink :

for sure it requires the radxa zero 3W with the gpio pin header expansion. Someone is using an heat sink like that ?

I have the same issue, I installed Debian radxa-zero3_bookworm_kde_t1, and is super hot, and I cant touch the sbc, there is a solution to this? I agree with Mario, when you buy a product, it should work correctly.

Also I have the same heatsink from Radxa product.

Try this :

https://it.aliexpress.com/item/1005003651858159.html

(case fans).

I’m also interested to know what are the pins that I should use to attach the fans to the GPIO header…

HDMI output generates a lot of heat (GPU), and adding 1.6 GHz overclocking, you get a high temperature.

To fix this, use the passive heatsink + thermal paste + copper pad.
See the results here:

You could attach on (if operates 5v):
pin 4 -> +5.0V (red)
pin 6 -> GND (black)

or enable output pin 11 -> GPIO3_A1 to turn it on / off
pin 11 -> +3.3V (red)
pin 9 -> GND (black)

—> To fix this, use the passive heatsink + thermal paste + copper pad.

I did this on my board with FreeBSD installed. Temp goes from 70 to 60. Not enough for my taste.

I realized that the only method to go from 70 to at least 50,I should use an active cooling. And I found an heatsink that uses two fans. It should work.

—> or enable output pin 11 -> GPIO3_A1 to turn it on / off
pin 11 -> +3.3V (red)
pin 9 -> GND (black)

Can u post an image ? I’m not able to understand where are located pin 11 and pin 9 on the space without to see a picture.

Sorry,I don’t understand from the link you provided. It is too technical for me. I need a picture like this :

4b489a65755fadea0c523b63a0e40c4f638981b4

you should have bought with headers, anyway, same pin positions as RPi 2W (warning!, do it at your own risk):

That’s clear. Thanks.

—> warning !, do it at your own risk)

is it dangerous ? why ?

nothing to worry if you know what you’re doing…

Let us know Mario if the active cooling fan worked for you?

I was thinking to buy the zero pro 2 only because it’s seem have a better cooling system without the need to use active cooling