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Ripple Measurements
To learn how we measure ripple, please click here.
The following table includes the ripple levels we measured on the PSU's rails. The limits are, according to the ATX specification, 120mV (for +12V) and 50mV (for 5V, 3.3V and 5VSB).
| Ripple Measurements | |||||
|---|---|---|---|---|---|
| Test | 12V (mV) | 5V (mV) | 3.3V (mV) | 5VSB (mV) | Pass/Fail |
| 10% Load | 8.6 | 6.1 | 12.3 | 4.6 | Pass |
| 20% Load | 19.1 | 7.8 | 12.6 | 5.7 | Pass |
| 30% Load | 12.9 | 8.1 | 13.1 | 5.8 | Pass |
| 40% Load | 13.6 | 8.4 | 12.3 | 6.3 | Pass |
| 50% Load | 14.8 | 8.6 | 14.7 | 6.9 | Pass |
| 60% Load | 16.9 | 10.2 | 16.6 | 7.9 | Pass |
| 70% Load | 16.6 | 10.3 | 16.9 | 7.1 | Pass |
| 80% Load | 18.7 | 10.4 | 17.1 | 7.9 | Pass |
| 90% Load | 17 | 10.9 | 17.7 | 7.9 | Pass |
| 100% Load | 18.7 | 11.8 | 18.9 | 8.4 | Pass |
| 110% Load | 20.1 | 12.2 | 19.9 | 8.7 | Pass |
| Cross-Load 1 | 10.7 | 8.1 | 15.1 | 4.5 | Pass |
| Cross-Load 2 | 14.3 | 7.7 | 11.9 | 6.4 | Pass |
Ripple suppression is excellent, landing close to the top implementations we've tested in this category. Andyson proves that it has more than just the required know-how; the company also has the facilities and resources to build a truly high-end PSU able to match the best of its competition. We are surprised to see a company with no presence in this category make a dynamic entry.
Ripple
The following oscilloscope screenshots illustrate the AC ripple and noise registered on the main rails (+12V, 5V, 3.3V and 5VSB). The bigger the fluctuations on the screen, the bigger the ripple/noise. We set 0.01V/Div (each vertical division/box equals 0.01V) as the standard for all measurements.
Ripple At Full Load
Ripple At 110-Percent Load
Ripple At Cross-Load 1
Ripple At Cross-Load 2
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