I have an APU2 and once a day, once every three days the device is turned off (the left most LED is off). There is no information on the serial console and the temperature of the device is 57.4 degree celcius according to the output of sensors. I need to unplug/plug the power to make the device boot again.
The device has one msata16d SSD, is using the PCengines power supply, has one 2G/3G modem and one 2G/3G/LTE modem and SIM cards in both SIM slots. I am running the latest coreboot firmware since today morning and it switched off once.
Has such a power off been experienced by someone else? Is there a way to get the device out of the shutdown to a reboot? What would be the behavior if the PCIe/USB cards draw too much current and the voltage drops, should the device reboot or end in the shutdown state?