Antec High Current Pro 750 W Power Supply Review

Overload 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 Antec High Current Pro 750 W provided very low ripple and noise levels, as you can see in the table below.

Input	Test 1	Test 2	Test 3	Test 4	Test 5
+12VA	23.0 mV	42.2 mV	33.8 mV	33.2 mV	35.4 mV
+12VB	27.0 mV	44.0 mV	34.8 mV	33.2 mV	34.4 mV
+5 V	10.2 mV	17.4 mV	16.0 mV	13.6 mV	11.8 mV
+3.3 V	13.2 mV	19.4 mV	25.2 mV	31.4 mV	23.4 mV
+5VSB	19.2 mV	18.0 mV	18.6 mV	20.4 mV	19.2 mV
-12 V	72.4 mV	71.8 mV	71.8 mV	71.4 mV	73.2 mV

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

Figure 25: +12VA input from load tester during test five at 746.4 W (35.4 mV)

Figure 26: +12VB input from load tester during test five at 746.4 W (34.4 mV)

Figure 27: +5V rail during test five at 746.4 W (11.8 mV)

Figure 28: +3.3 V rail during test five at 746.4 W (23.4 mV)

Let’s see if we can pull more than 650 W from this unit.