In Win Commander II 750 W Review

Name: In Win Commander II 750 W
Brand: InWin

crmaris

on Oct 5th, 2011,

in Power Supplies.

Manufacturer: InWin

Value & Conclusion »

Ripple Measurements

In the following table you will find the ripple levels that we measured on the main rails of IRP-COM750 II. According to ATX specification the limits are 120 mV (+12V) and 50 mV (5V, 3.3V and 5VSB).

Ripple Measurements In Win IRP-COM750 II
Test	12 V	5 V	3.3 V	5VSB	Pass/Fail
20% Load	7.1 mV	4.2 mV	3.6 mV	5.3 mV	Pass
40% Load	9.3 mV	5.2 mV	3.7 mV	6.3 mV	Pass
50% Load	11.0 mV	5.3 mV	4.0 mV	6.7 mV	Pass
60% Load	12.9 mV	6.3 mV	4.1 mV	8.1 mV	Pass
80% Load	16.7 mV	8.0 mV	4.6 mV	10.4 mV	Pass
100% Load	20.3 mV	8.1 mV	4.9 mV	10.7 mV	Pass
Crossload 1	10.4 mV	4.3 mV	4.0 mV	11.6 mV	Pass
Crossload 2	18.5 mV	8.9 mV	5.0 mV	9.2 mV	Pass

Ripple/noise suppression is outstanding on all rails and throughout all loads. Andyson did a great job reducing ripple to the lowest possible. Even though the particular unit belongs to the mid-range price category it can easily compete with all high-end PSUs, at least in this field (ripple). Well done Andyson! Now it's time to check on these Voltage Regulation Modules and fix the voltage regulation issues.

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.