Antec High Current Gamer 620 W Review

Name: Antec High Current Gamer 620 W
Brand: Antec

crmaris

on Apr 14th, 2011,

in Power Supplies.

Manufacturer: Antec

Value & Conclusion »

Ripple Measurements

In the following table you will find the ripple levels that we measured on the main rails of HCG-620. According to ATX specification the limits are 120 mV (+12V) and 50 mV (5V & 3.3V).

Ripple Measurements
Test	12 V	5 V	3.3 V	Pass/Fail
20% Load	8.8 mV	4.8 mV	5.2 mV	Pass
40% Load	10.8 mV	5.4 mV	6.2 mV	Pass
50% Load	12.2 mV	7.4 mV	7.8 mV	Pass
60% Load	13.4 mV	7.2 mV	8.6 mV	Pass
80% Load	17.2 mV	7.2 mV	10.2 mV	Pass
100% Load	31.2 mV	7.8 mV	15.2 mV	Pass
Crossload 1	17.2 mV	26.8 mV	10.6 mV	Pass
Crossload 2	31.2 mV	8.6 mV	16.4 mV	Pass

Seasonic did its magic again. Although the current platform uses an older design, ripple measurements are excellent! Only at CL1 test the 5V ripple registered a significant increase but still it nearly passed half of the ATX specification limit (50mV).

Ripple at Full Load

In the following oscilloscope screenshots you can see the AC ripple and noise that the main rails registered (+12V, 5V, 3.3V). The bigger the fluctuations on the oscilloscope's screen the bigger the ripple/noise. We set 0.01 V/Div (each vertical division/box equals to 0.01V) as standard but sometimes we are forced to use 0.02 V/Div, meaning that the fluctuations will look smaller but actually this wont be the case.