Electrical question?

Question

Electronics

Hello, not a specialist in electrics - an amateur, a question arose to which I can not find an answer. Let's say we have a phase plug from a computer power supply there and voltage and ground, why can't two motherboards be connected to one plug and run two computers, given that a 650-watt power supply is quite powerful. Is it possible to do the same with a 220 volt phase? There will be no kz?

Answer 1

Can. Just specify the question, what are you going to combine with what? From one power supply to power a pair of motherboards? Can. It is impossible to combine 3 phases from the meter into one directly.

Answer 2

Let's say we have a phase plug from a computer power supply there and voltage and ground, why can't two motherboards be connected to one plug and run two computers, given that a 650-watt power supply is quite powerful.

This question gives the impression that you believe that the phase voltage of 220 volts is connected directly to the motherboard. This is not so, 12, 5 and 3.3 volt supply lines go to the motherboard from the PSU, there are no phases there.
Maybe you mean, is it possible to connect two motherboards to one common PSU? No, it’s impossible, because in addition to the power wires, information lines are laid between the PSU and the motherboard: the PG signal comes from the PSU (all supply voltages have settled down and you can start), and from the motherboard - the PO signal that allows switching on (a button on the facade of the computer). If you connect signals from one, then what to do with the same signals from the other?

Is it possible to do the same with a 220 volt phase? There will be no kz?

What exactly did you call "the same"?