Kingwin Stryker Fanless 500 W Review

Name: Kingwin Stryker Fanless 500 W
Brand: Kingwin

crmaris

on Aug 15th, 2011,

in Power Supplies.

Manufacturer: Kingwin

Value & Conclusion »

Ripple Measurements

In the following table you will find the ripple levels that we measured on the main rails of STR-500. 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	9.8 mV	8.8 mV	6.4 mV	Pass
40% Load	12.2 mV	9.4 mV	8.2 mV	Pass
50% Load	13.4 mV	9.6 mV	9.0 mV	Pass
60% Load	14.8 mV	10.0 mV	10.2 mV	Pass
80% Load	19.2 mV	11.8 mV	13.6 mV	Pass
100% Load	23.8 mV	13.8 mV	17.2 mV	Pass
120% Load	30.8 mV	14.6 mV	18.8 mV	Pass
Crossload 1	14.6 mV	10.8 mV	11.6 mV	Pass
Crossload 2	20.8 mV	12.4 mV	13.4 mV	Pass

Ripple/noise suppression is very good. Even when we overpowered to 120%, the PSU ripple didn't go sky high. In addition to to efficiency, Super Flower did a pretty good job with ripple suppression 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. For all measurements we set 0.02 V/Div (each vertical division/box equals to 0.02V) as standard.