Quote from: knightyyeah... the main thing is, the closer you run it to its peak output the shorter its life is

last thing I read sais a psu run at 50% output should last ten times longer than one run at 75%

(was awhile ago I read that tho....)

(75% because most PSUs are made to run at about 75% constant load, much over that and your killing it)

Sure its not 1/SQR(2) *100 = 70.71%?

As would make sense, if most cheaper PSUs list PMPO as their rated power output, 1/SQR(2) would result in the RMS value of power which is what the power ratings SHOULD be on the packaging

not saying your wrong, just giving some credibility to your figures there

Quote from: M3ta7h3ad

Quote from: knightyyeah... the main thing is, the closer you run it to its peak output the shorter its life is

last thing I read sais a psu run at 50% output should last ten times longer than one run at 75%

(was awhile ago I read that tho....)

(75% because most PSUs are made to run at about 75% constant load, much over that and your killing it)

Sure its not 1/SQR(2) *100 = 70.71%?

As would make sense, if most cheaper PSUs list PMPO as their rated power output, 1/SQR(2) would result in the RMS value of power which is what the power ratings SHOULD be on the packaging

not saying your wrong, just giving some credibility to your figures there

Thats a seperate argument.  In power electronics you typically run things below their max capacity, be that an RMS or a p-p value.