Why is the Motherboard cut off?

Question

motherboards

Processor i3 LGA1151
RAM Ddr4 fury hyperx 8gb
Motherboard B150m mortar
All components are a little over 3 years old.
3 days ago I sat all day at the computer, playing everything. Knocked it out at 12 o'clock at night and went to bed). The next morning, when I woke up, I decided to turn on the computer. Turned on, the desktop appeared. I poke on the Google Chrome browser and the PC abruptly turns off. I turn it on again, worked for 5 seconds and passed out again. I come from the university. I tried to turn it on a hundred times, on average it was cut down in 3 seconds, sometimes the "Welcome to Windows" window appeared and it was cut down again.
My good friend took my PC to him, since our sockets and ddr are suitable for memory. Motherboard is different. He put all my components on his motherboard and it worked. The problem is in the motherboard. Who can you turn to for help and why the motherboard can behave this way.
Thank you very much in advance for your reply.

Answer 1

Have you checked the power supply?