So most PSU should be overvalued or defined in a certain temperature (low) setting, as this little 300W power supply can power my system without any problems which obviously uses no more than 0.73 A @ 230VAC during charging. (The machine without power supply is equal to only 65% of that!) Boot problems can be caused by transient voltage (resulting in a logic of protection that turns off the computer), but this is just speculation on my part. These things appear / disappear so quickly that cannot be measured with a voltmeter. It is unlikely that a lot of fans and spinning hard drives can cause transient. After watching my team 116W (179W power supply (AC-DC loss>)) during startup, just over a 300W power supply seems just silly, unless PSU manufacturers claim more units can handle. I think we have to look deeper into the power supply: maximum amps s only in the different lanes.
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