Thanks for Your interest in my thread.
I’m using latest armbian buster (Armbian 20.08.1 Buster with Linux 5.8.6-rockchip64):
Linux rockpi4 5.8.6-rockchip64 #20.08.1 SMP PREEMPT Thu Sep 3 18:03:42 CEST 2020 aarch64 GNU/Linux
Yes, the board is dead untill PSU is reconnected. The used PSU is 5.1V, 3A KW18-051E300.
I’m using stress-ng app. The call I’m using is :
sudo stress-ng --cpu 16 --io 8 --vm 8 --vm-bytes 256M --timeout 21600s
and this test is shutting down the rockpi4. I’ve also tried to check 7zr b, and this test works without shutdown, but it apply less cpu load.
I’m trying to debug this issue further, so I’ve changed stress-ng parameters, to test only CPU load. After the 6 hours CPU-only test PASSED without the shutting down. The CPU load and temperature were high (all cpu’s @MAX, temperature below 75 deg).
Used app call was:
nohup sudo stress-ng --cpu 16 --timeout 21600s
So next, I will try to add or test only memory with -vm 8 -vm-bytes 245MB
If anyone have any ideas what to check, please let me know.
EDIT : I’ve just checked and in benchmarks thread other users report ~18-19W of power consumption. So my 5.1V 3A PSU could be a little to weak. I think I need to find a 9V PD charger instead.