RPi shuts down by it self

[niels]

My RPi shuts down by it self after a few minutes of running. All lights exept PMR turnes of and the signal (HDMI, SSH, etc.) is lost.

I have tried different SD cards and different OS's. I have also tried the same SD and OS combinations with another RPi, where it runs perfectly.

I think it's a hardware error, but what do you think and how do I fix it?

Best from Niels

[mahjongg]

Does your fuse (F3, on the back of the board, near the power input) gets hot?
If it does, give it a few days to recover from being blown, and then try again.

[joan]

Can you isolate the fault? Try without screen attached etc. The fault could be with the Pi, power supply, or other connected device.

[thogue]

Have a decent mutlimeter? you could check the polyfuse with a ohm meter.

Also monitoring your pis voltage could be a good started (via TP1 / TP2 )

Check out PSU output while your at it