Now it can power on about one minute then the power LED and electric fan are also turn off.I would be grateful ,if anybady can help me .
There is sleep or low power mode. It sounds like there is something else you are describing. I assume network ping won’t work and that power is completely off?
If problems are not in log files, then you should use a serial console (115200 8N1) to see what is going on. The last thing which is logged should show up in serial console.
Have you flashed, and if so, which version? Is there anything special running at the time, or is it just idle?