In article , RobH   wrote:
>As the subject header says, my pi3 is now powering itself off after
>around 5 minutes, and is then unuseable.
>
>I thought there was something amiss with it a couple of weeks ago, as I
>posted on here that it was dead or dying.
>
>It has now gone off after 2 minutes!
>
>Is there anything I can do or check to find what is wrong with it.

It's not possible for a Pi to power off. It simply doesn't have the
hardware support for it.

However it can crash and become unresponsive. So next time it happens
check the power (red) LED. However this LED is under software control
and will go off if the voltage is too low.

If you have a screen connected then you'll see a yellow "lightning bolt" icon
appear if the power is too low (and a red thermometer icon if it's too hot)

99% of issues like this is the power supply. Change it. Try another,
and if you have one, get your multimeter out and measure it when
it's powering a Pi.

Gordon

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