Hi and thaks for response,
I have cooler on it so my temp is:
I've already tested on full load on all 4 cores by pigz and all works fine.
Temp on full load during 15 minutes is about 65°C
But this is my second BPI M2U and previous has already stability problems, so I have tried to buy next one and still with same result.
I have also 3,5 3TB SATA disk with 12/5V (5V for BPI) power suply, but now I have tried to connect BPI to another 5V 2A adapter.
20:07:46 up 1 day, 2:03, 1 user, load average: 5,66, 5,20, 3,38
Linux version 3.10.104-BPI-M2U-Kernel (root@K126) (gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) ) #11 SMP Sun Feb 5 17:38:59 MSK 2017
In logs is nothing, it is HW freeze,