Troubles booting a Cubox-i4P

I.MX6
3

I’ve to check again, but the temperature was around 55-60°C (this summer was quite hot). I cannot tell by touching the Cubox if it’s warmer than usual. I have a throttling daemon which adjusts the CPU frequency with the temperature. I read another post where the culprit was the power suply, so I’ll try to replace it.