Why does the computer turn off 2 minutes after being turned on?

Question

Iron

I played at the computer, it turned off. All attempts to turn it on were unsuccessful. I changed the power supply - the computer turns on and turns off again after about 2 minutes. In order for it to turn on again, you need to disconnect something from the motherboard and connect it back. Well, after this algorithm, it turns on and off again.
And the first power supply generally died.
Tell me what could be the problem?
Thank you.

Answer 1

Perhaps the power supply is not enough.

Answer 2

Turn off the drive, my friend had this, he turned it off and started to turn on normally.