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Ripple and Noise Tests

Voltages at the power supply outputs must be as “clean” as possible, with no noise or oscillation (also known as “ripple”). The maximum ripple and noise levels allowed are 120 mV for +12 V and -12 V outputs, and 50 mV for +5 V, +3.3 V and +5VSB outputs. All values are peak-to-peak figures. We consider a power supply as being top-notch if it can produce half or less of the maximum allowed ripple and noise levels.

The NZXT HALE90 V2 850 W provided extremely low ripple and noise levels, making it a “flawless” unit on this test.

Input Test 1 Test 2 Test 3 Test 4 Test 5
+12VA 6.2 mV 7.4 mV 9.2 mV 11.2 mV 13.2 mV
+12VB 6.2 mV 7.4 mV 9.2 mV 10.4 mV 13.0 mV
+5 V 6.2 mV 6.8 mV 8.8 mV 10.2 mV 11.2 mV
+3.3 V 8.8 mV 7.4 mV 8.2 mV 8.8 mV 10.2 mV
+5VSB 11.6 mV 11.4 mV 12.6 mV 13.4 mV 15.2 mV
-12 V 29.8 mV 37.8 mV 47.0 mV 56.2 mV 67.8 mV

Below you can see the waveforms of the outputs during test five.

NZXT HALE 92 V2 850wFigure 25: +12VA input from load tester during test five at 846.8 W (13.2 mV)

NZXT HALE 92 V2 850wFigure 26: +12VB input from load tester during test five at 846.8 W (13.0 mV)

NZXT HALE 92 V2 850wFigure 27: +5V rail during test five at 846.8 W (11.2 mV)

NZXT HALE 92 V2 850wFigure 28: +3.3 V rail during test five at 846.8 W (10.2 mV)

Let’s see if we can pull more than 850 W from this unit.

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Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.