A server's components use 500 W, supplied by a power supply that is 90% efficient at that load. About how much does it draw from the wall, and where does the difference go?
Les composants d'un serveur consomment 500 W, fournis par une alimentation dont le rendement est de 90 % à cette charge. Environ combien tire-t-elle sur le secteur, et où passe la différence ?
Answers
A450 W; the power supply stores the rest in its capacitors450 W ; l'alimentation stocke le reste dans ses condensateurs
B500 W; there is no loss in a modern supply500 W ; une alimentation moderne n'a aucune perte
CAbout 556 W; roughly 56 W is lost as heatEnviron 556 W ; environ 56 W sont perdus en chaleur
DAbout 900 W; the supply doubles the powerEnviron 900 W ; l'alimentation double la puissance
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