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Ripple Measurements
To learn how we measure ripple, please click here.
The following table includes ripple levels we measured on the TPG-0750F-R'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 | 5.3mV | 4.8mV | 4.5mV | 4.2mV | Pass |
| 20% Load | 6.2mV | 5.3mV | 4.7mV | 4.5mV | Pass |
| 30% Load | 7.7mV | 5.5mV | 5.5mV | 4.2mV | Pass |
| 40% Load | 9.5mV | 8.6mV | 6.3mV | 6.5mV | Pass |
| 50% Load | 11.0mV | 9.5mV | 6.9mV | 7.9mV | Pass |
| 60% Load | 12.9mV | 11.9mV | 6.1mV | 8.9mV | Pass |
| 70% Load | 14.6mV | 11.1mV | 6.8mV | 8.4mV | Pass |
| 80% Load | 15.5mV | 11.4mV | 7.8mV | 8.5mV | Pass |
| 90% Load | 17.1mV | 12.2mV | 7.3mV | 7.5mV | Pass |
| 100% Load | 22.2mV | 13.8mV | 7.8mV | 8.4mV | Pass |
| 110% Load | 26.9mV | 14.0mV | 9.3mV | 10.1mV | Pass |
| Cross-Load 1 | 6.6mV | 6.3mV | 6.1mV | 4.9mV | Pass |
| Cross-Load 2 | 21.9mV | 10.6mV | 7.4mV | 6.4mV | Pass |
Thermaltake keeps its promise: ripple suppression is very good on all rails. The TPG-0750F-R performs much better than other PSUs based on the same platform, especially when it comes to ripple filtering on the minor rails. Obviously TT's unit has some modifications/fixes on its voltage regulation modules.
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
