LEPA G1600-MA 1600 W Review

Name: LEPA G1600-MA 1600 W
Brand: LEPA

crmaris

on Jun 29th, 2012,

in Power Supplies.

Manufacturer: LEPA

Performance Rating & Performance per Dollar »

Ripple Measurements

In the following table you will find the ripple levels that we measured on the main rails of G1600-MA. According to ATX specification the limits are 120 mV (+12V) and 50 mV (5V, 3.3V and 5VSB).

Ripple Measurements LEPA G1600-MA
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	12.5 mV	17.5 mV	11.1 mV	10.6 mV	Pass
40% Load	13.5 mV	18.9 mV	12.7 mV	14.3 mV	Pass
50% Load	14.5 mV	19.5 mV	15.5 mV	15.9 mV	Pass
60% Load	15.6 mV	22.4 mV	16.3 mV	17.5 mV	Pass
80% Load	17.6 mV	23.3 mV	18.6 mV	19.6 mV	Pass
100% Load	21.8 mV	24.9 mV	21.4 mV	29.3 mV	Pass
Crossload 1	18.7 mV	26.5 mV	25.9 mV	10.4 mV	Pass
Crossload 2	18.4 mV	22.8 mV	16.6 mV	25.4 mV	Pass

Ripple suppression at +12V is outstanding to say the least! Even at full load, ripple does not go above 22mV, which is about one sixth of the limit. On the minor rails ripple is low too, although not that low and finally at 5VSB ripple is a tad below 30mV, definitely not the lowest we have seen on this rail. Overall Enermax did a great job here and the +12V rail is an example to follow by competing manufacturers.

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 and 5VSB). The bigger the fluctuations on the oscilloscope's screen the bigger the ripple/noise. For all measurements we set 0.01 V/Div (each vertical division/box equals to 0.01V) as standard.