I know what the bios setting does but I have seen 2 different behaviors when this "After Power Failure" setting is set to "power on"
Here are my main questions,
does the bios know if the PC was powered down properly then power removed, or if there was a genuine power failure while it was running and did a hard shutdown?
Is this power failure detection a function of the PSU and the bios or just the bios?
What I have seen is some desktops will auto power on if shut down properly and then the power cord was removed, then connected back, others do not, they only auto power on if there was a power failure while the PC was running.
3, Can any one confirm these 2 different behaviors in desktops through the years?