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When I issue the reboot command in OS, does it actually affect power supply output (12V rail in particular)?
For instance, PC B uses PC A's power supply for hard drive (SATA power) and graphics card (6+2 PCIE power). When PC B reboots, does it affect PC A?
2Why don't you try it see what happens? This is a question you can easily answer yourself. – DavidPostill – 2017-04-23T18:00:17.960
A reboot should utilize the
reset
circuitry of the computer while the PSU maintains its output. This can cause differences between a cold boot, i.e. power-on reset, versus a warm boot, i.e. a reset while powered up, on a poorly-designed computer and/or peripheral, or a poorly-written device driver. FWIW there is no reset signal either going to or from the PSU at the ATX power connector. – sawdust – 2017-04-23T22:27:48.850