What happened to the computer?

Question

Iron

I sat at the computer, touched the plug on the wall of the networker, from which the computer is powered. The computer turned off and immediately turned on, but at the same time it didn’t let me into Bios, I pressed the emergency restart button, Windows booted up.
I pressed the shutdown, after which I decided to check the plug in the socket on the wall by pressing on it, after which the computer turned off abruptly, turned on and turned off again. After that, pressing the power button did nothing, after 5 minutes there was also silence, it began to sin on the power supply, but when I opened the system unit, I saw that the power indicator on the mother was on, but it still did not respond to the button. Not understanding what was happening, I turned off and on the power switch on the PSU, pressed the power button and it started up.
After this, there is an alarm that something is wrong. What can be sinned after this?
PS For about half a year, the System Halted error very rarely comes out, while the case is securely closed, but an emergency reboot successfully cures it.

Answer 1

Just because of the bounce, the power supply went into protection.
It is advisable not to repeat. Glitches of the system are not connected with this.
By the way, the diode on the motherboard can also glow when the board is faulty.