How does the power button of the computer?

Good time of day.
Tell me, how does the start button on the PC case?

It is a switching power supply or what?
I want to make a run of machines without physical presence of a button on multiple machines.
June 10th 19 at 14:27
4 answers
June 10th 19 at 14:29
As in the doorbell, just closes the contacts.
And start the machine using Wake-on-LAN.
Okay, thank you.
Know about wol, but this option is not possible in my case that some machines just no support. Therefore, it remains only to short some sensor. - misty.Mann commented on June 10th 19 at 14:32
Now it is extremely difficult to find iron in which there is no support for wol.
Unless we are talking about ancient hardware from a Museum - then Yes. - earl.Weissnat commented on June 10th 19 at 14:35
the case of the impossibility of a network such as ethernet as a minimum, and limited functionality. I'm not only on need. - misty.Mann commented on June 10th 19 at 14:38
June 10th 19 at 14:31
Tell me, how does the start button on the PC case? It is a switching power supply or what?

No. Motherboard all the time under power. Button closes the contact on the motherboard, feeding enable signal, the logic programmed in all motherboards that support ACPI. In ancient motherboard (until the 2000s) the power button was not a toggle switch - it is switched power.

I want to make a run of machines without physical presence of a button on multiple machines.

Read wake-on-LAN - now it's built 99% of the motherboards, don't need to do anything physically simple to configure.
T e current still goes through the "button"(it wire) all the time?
Know about wol, but in my case it is rather impossible, therefore, regarded more as a temporary alternative. - misty.Mann commented on June 10th 19 at 14:34
,
T e current still goes through the "button"(it wire) all the time?
No.
On open circuit the current goes the current goes only when you press the button, once released does not go. - earl.Weissnat commented on June 10th 19 at 14:37
u only need a boost. then I realized. thank you. - misty.Mann commented on June 10th 19 at 14:40
not impulse, I wrote - just briefly short the two pins. Power on the motherboard already. - misty.Mann commented on June 10th 19 at 14:43
, , sorry, that came out wrong. mean short-circuit, only a very short-time to have enough "kick" to start. - earl.Weissnat commented on June 10th 19 at 14:46
,
short circuit, only a very short-time to have enough "kick" to start.
The same button, if you hold it pressed longer, starts another, the opposite mode - off. "Longer" in this case is 4 seconds or more. - misty.Mann commented on June 10th 19 at 14:49
Know about this too. Thanks for your comment. I was advised option already, which is more tolerable for my ploys. - Jeff28 commented on June 10th 19 at 14:52
June 10th 19 at 14:33
it is a short-term lock signal circuit.
June 10th 19 at 14:35
The designation of school of circuitry _/_ . Off - activates the Mat. charge, the included monitored by the motherboard (sends a signal to the OS when pressed, while the hold - off power).
Button there are two alternatives - automatically turn on when power is being supplied (in fact the button is outside) and if the network card supports Wake-on-LAN (special Protocol), both methods are configured in the BIOS.

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