Radxa-Zero3 Minimal IOT build overheating

[fvig2001]

Armbianmonitor:

https://paste.armbian.com/eveqecudim

Hi

 

So I installed the minimal IOT version on the eMMC and I am struggling with it as on login, the temperature is at already 73C then ends up having a forced shutdown after like 5 minutes. I don't see why this is happening as it's literally doing nothing on the command line. Any ideas on how to fix this? I was expecting this to idle around 30s, not reach 90 in an air conditioned room.

 

Thanks.

[Igor]

38 minutes ago, fvig2001 said:

I was expecting this to idle around 30s, not reach 90 in an air conditioned room.

 

That is over-optimism for most if not all of those chips - unless additionally cooled. I haven't played with exact this board much, so I am unaware of cooling specific for this board, but this is powerful SoC on a small board + every SoC needs some cooling in order to keep temp low. Do you have a (proper) heat sink? https://blog.armbian.com/stay-cool/

This looks quite normal:

 

### Boot system health:

Time        CPU    load %cpu %sys %usr %nice %io %irq   Tcpu  C.St.
01:42:36  1800 MHz  0.30  52%  32%  17%   0%   1%   0%  61.1 °C  0/6
01:42:36  1800 MHz  0.30  35%   8%  26%   0%   0%   0%  59.4 °C  0/6
01:42:37  1800 MHz  0.30  32%   5%  25%   1%   0%   0%  59.4 °C  0/6
01:42:37  1800 MHz  0.30  32%   4%  25%   1%   0%   0%  59.4 °C  0/6
01:42:38  1800 MHz  0.30  30%   4%  25%   0%   0%   0%  59.4 °C  0/6

Also worth mentioning that here we only have Rockchip provided kernel. No modern kernel yet - which usually brings less aggressive performance / voltage settings.