Enermax MaxRevo 1350 W Review

Name: Enermax MaxRevo 1350 W
Brand: Enermax

crmaris

on Aug 1st, 2011,

in Power Supplies.

Manufacturer: Enermax

Value & Conclusion »

Ripple Measurements

In the following table you will find the ripple levels that we measured on the main rails of EMR1350EWT. 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	8.0 mV	8.8 mV	6.4 mV	Pass
40% Load	9.6 mV	9.8 mV	7.0 mV	Pass
50% Load	10.6 mV	9.8 mV	7.2 mV	Pass
60% Load	11.6 mV	10.0 mV	7.4 mV	Pass
80% Load	15.8 mV	11.4 mV	8.2 mV	Pass
100% Load	17.4 mV	14.8 mV	11.0 mV	Pass
120% Load	20.6 mV	16.2 mV	12.2 mV	Pass
Crossload 1	18.2 mV	18.4 mV	12.2 mV	Pass
Crossload 2	12.0 mV	10.4 mV	7.6 mV	Pass

It's highly impressive to measure barely above 20mV of ripple at +12V while the output power reaches 1620W! This clearly shows that this PSU has lots of potential and you won't easily push it to its limits with a real system. Ripple/noise suppression is excellent on the minor rails too.

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. On all following ripple screenshots the order of images is +12V, 5V and 3.3V.