Hello everyone.   My OP-PC is dead, with NO HDMI signal, NO console output, NO network output (LEDs off), only 1 LED is on which indicates SD card inserted (if SD card removes, it off). when use newly created SD card with Armbian, SDcard OS partition not resized. when connect to power supply,  I can hear current noise.   before it dies, it runs armbian server image with mainline kernel (4.14), it doesn't look like thermal fail, due to it runs very well during summer