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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 TPG-850AH3FSGR’s rails. The limits, according to the ATX specification, are 120mV (+12V) and 50mV (5V, 3.3V, and 5VSB).
| Test | 12V | 5V | 3.3V | 5VSB | Pass/Fail |
|---|---|---|---|---|---|
| 10% Load | 23.0mV | 8.1mV | 7.3mV | 5.0mV | Pass |
| 20% Load | 8.4mV | 8.9mV | 8.4mV | 4.3mV | Pass |
| 30% Load | 10.4mV | 9.1mV | 9.1mV | 4.3mV | Pass |
| 40% Load | 10.7mV | 9.9mV | 10.2mV | 5.0mV | Pass |
| 50% Load | 12.5mV | 14.6mV | 12.7mV | 9.2mV | Pass |
| 60% Load | 13.9mV | 14.1mV | 12.7mV | 6.6mV | Pass |
| 70% Load | 15.5mV | 15.5mV | 13.8mV | 7.2mV | Pass |
| 80% Load | 17.1mV | 17.2mV | 17.1mV | 8.8mV | Pass |
| 90% Load | 18.9mV | 18.4mV | 18.3mV | 8.9mV | Pass |
| 100% Load | 21.2mV | 20.3mV | 19.8mV | 10.5mV | Pass |
| 110% Load | 24.5mV | 22.3mV | 21.2mV | 12.0mV | Pass |
| Cross-Load 1 | 23.8mV | 12.9mV | 15.5mV | 4.9mV | Pass |
| Cross-Load 2 | 21.0mV | 16.3mV | 13.0mV | 9.0mV | Pass |
The ripple suppression we measured is satisfactory. It might not be a good as what we've seen from Super Flower, Seasonic, or CWT, but it's still quite good (and without any extra in-cable filtering capacitors).
Ripple Oscilloscope Screenshots
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 0.01 V/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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