Hi,   When I put a heavy load on my NanoPi NEO2, it locks up. The ethernet light keeps flashing, so there is still something alive? After a power reset, the NEO2 works again.   I've already put a CPU fan on my CPU. CPU temp is at 25 degrees Celsius in rest, and goes up to 37 degrees Celsius under the heavy load. The heavy load is a "make -j4" of a C source code project   Tips how to solve this?     sander@nanopineo2:~$ while true; do date ; uptime