Five 550 And 600 W 80 PLUS Platinum Power Supplies, Tested

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A good power supply doesn't just provide you with ample output. Increasingly, vendors have put a bigger emphasis on delivering power more efficiently, too. We're testing five 80 PLUS Platinum-rated power supplies in the 550- to 600-watt range.

Enermax Platimax 600 W

The Enermax Platimax 600 W has three 12 V rails, each of which can handle up to 25 A. Together, the three rails are rated for up to 600 W, which is the power supply's total rated output, too. We were able to draw 600 W from the three 12 V rails without any adverse effect on the other voltages.

This power supply has plenty of connectors: eight SATA, eight four-pin Molex, and four PCIe. The cables are partially modular, meaning that only the mandatory motherboard and auxiliary CPU cables are permanently attached to the unit, and cable length is above average.

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Enermax Platimax 600 W
AC Input100-240 V, 50-60 Hz
DC Output+3.3 V+5 V+12 V (#1)+12 V (#2)+12 V (#3)+12 V (#4)-12 V+5 Vsb
20 A20 A25 A25 A25 An/a0.5 A2.5 A
Individual OutputRow 3 - Cell 1 Row 3 - Cell 2 Row 3 - Cell 3 Row 3 - Cell 4 Row 3 - Cell 5 Row 3 - Cell 6 6 W1 W
Rail UtilizationSysSysCPU And VGA
Combined Output100 W600 W
Total Continuous Output600 W
Peak Output660 W