Super Flower Leadex II 750 W Review

Name: Super Flower Leadex II 750 W
Brand: Super Flower

crmaris

on Jun 6th, 2017,

in Power Supplies.

Manufacturer: Super Flower

Protection Features Evaluation »

Ripple Measurements

You will see the ripple levels we measured on the rails of the SF-750F14EG in the following table. The limits are, according to the ATX specification, 120 mV (+12V) and 50 mV (5V, 3.3V, and 5VSB).

Ripple Measurements - Super Flower SF-750F14EG
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
10% Load	4.4 mV	3.9 mV	5.5 mV	5.2 mV	Pass
20% Load	6.0 mV	4.2 mV	5.4 mV	4.9 mV	Pass
30% Load	6.9 mV	4.4 mV	6.3 mV	5.3 mV	Pass
40% Load	7.5 mV	5.1 mV	6.7 mV	5.3 mV	Pass
50% Load	8.2 mV	5.4 mV	5.9 mV	5.5 mV	Pass
60% Load	9.3 mV	5.7 mV	6.1 mV	5.8 mV	Pass
70% Load	10.3 mV	6.4 mV	6.8 mV	6.2 mV	Pass
80% Load	10.8 mV	6.6 mV	6.3 mV	7.3 mV	Pass
90% Load	11.1 mV	6.9 mV	7.0 mV	8.0 mV	Pass
100% Load	11.6 mV	7.6 mV	7.0 mV	8.7 mV	Pass
110% Load	12.0 mV	7.8 mV	7.0 mV	8.9 mV	Pass
Crossload 1	5.3 mV	4.7 mV	6.3 mV	11.0 mV	Pass
Crossload 2	11.1 mV	7.4 mV	6.8 mV	7.0 mV	Pass

Super Flower's platform delivers outstanding ripple-suppression results. We do believe that the caps on the modular cables could easily be left out. This platform offers incredibly clean outputs as is, which means several mV more wouldn't curtail its performance at all.

Ripple at Full Load

You can see the AC ripple and noise the main rails registered (+12V, 5V, 3.3V, and 5VSB) in the following oscilloscope screenshots. 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 0.01 V) as the standard for all measurements.