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Kingwin Stryker Fanless 500 W Review
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.
Ripple at 120% load
The order of images is +12V, 5V and 3.3V.
Ripple at Crossload 1
The order of images is +12V, 5V and 3.3V.
Ripple at Crossload 2
As above the order of images is +12V, 5V and 3.3V.
Nov 27th, 2024 16:49 EST
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