PC went out from connecting headphones, possible reasons?

Question

Do it yourself

When you turn on the headphones in the front panel, the computer goes out.

First of all, I turned off the socket and closed the contacts on the motherboard, at startup the unit does not make a loud click, and does not start.

I turned off the video card first, then the first RAM, then the second bar, the same thing.

I disconnected everything from the power supply unit, closed 3-4 pins, the power supply unit started up but turned off after 10 seconds, without sound signals, power supply unit 650x.

I also took out the battery, help me understand where to look, or is it the end of the motherboard?
Thank you!

Answer 1

bp started but after 10 seconds turned off

How did you determine the on and off - by the PSU fan? It can go into passive mode without load and at low load, this does not mean that it has turned off. To be sure, you need to close 3-4 and measure the voltage at the output. Or connect a load - any fan with a molex connector, DVD-ROM, anything that makes it easy to see the presence of power.
If the power supply really turns off after 10 seconds, then it is faulty. If in fact it gives out voltage, but its fan is not spinning, then go to the version of the motherboard dying.
PS You may also have a short circuit in the USB connector on the front panel of the case. When the headphones were connected, they could stir up the USB a little. To check, you need to disconnect the front USB cable from the motherboard and try to start the computer.

Answer 2

Option: bp died from a pulse of static electricity.
this usually happens when the window is consistently below -10.
the air in a heated house is dry, plus a lot of woolen and synthetic warm clothes, which makes it possible to accumulate large static potentials on the human body.
try to run with another bp. maybe he just died.
because bp is quite a tricky thing, but the motherboard is much more gentle.
Check all voltages on this PSU.