Five power supplies compared

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The Tech Report has compared 5 of the most important accessories of your computer, the power supply unit.Today, I've rounded up five brand-new power supplies from Ahanix, Antec, Enermax, Vantec, and Zalman to compare with each other and our previous favorite. I've updated our power supply testing gauntlet, too. Not only will we be looking at DC voltage tolerances and noise levels, we'll also take a peek at each power supply's impact on system temperatures and measure its AC ripple voltage.