Operates when the computer must wait only then to have the electricity

According to the engine case power source, must wait, only then has electricity this is any reason, the beforehand time is quite short, occasionally 1-2 times, but yesterday and today, want and so on about 10 seconds only then to have the electricity, this was any reason
My situation is the same with you, I must wait for 30~50 seconds
Is a power source’s any magnet coil is not easy to use
My computer quite old preparation traded the power source directly
If your computer is new very has the possibility is the power source has the quality question 1.has the possibility your power switch to have the question.
2.your power source has the question.Traded a power source on OK Absolute motherboard question.