Page 1:Seasonic SSR-850TD Power Supply Review
Page 2:Packaging, Contents, Exterior, And Cabling
Page 3:A Look Inside And Component Analysis
Page 4:Load Regulation, Hold-Up Time, And Inrush Current
Page 5:Efficiency, Temperature, And Noise
Page 6:Protection Features
Page 7:Cross-Load Tests And Infrared Images
Page 8:Transient Response Tests
Page 9:Ripple Measurements
Page 10:Performance, Performance Per Dollar, Noise, And Efficiency Ratings
Page 11:Pros, Cons, And Final Verdict
Check out our PSUs 101 article to learn more about PSU protection features.
Our protection features evaluation methodology is described in detail here.
5V: 28.1A (140.5%)
3.3V: 27.3A (136.5%)
5VSB: 4.1A (136.7%), 79.86mV Ripple
|OTP||Yes (>130°C secondary heat sink)|
Inrush: NTC thermistor & bypass relay
OCP's triggering points are quite high on the minor rails, though this won't create any trouble since load regulation and ripple suppression are kept under control. However, at 5VSB, ripple with 4.1A is higher than the specification allows, while with only 0.1A lower load it's normal again. Seasonic should look into this and fix it. Lastly, the OPP is set really high. Then again, the PSU doesn't have any problems under almost 1.2kW of load (at normal ambient temperatures, at least).
The other protection features operate properly. OTP is notably present and configured at an optimal level, allowing the PSU to run even under 50°C temperatures per the ATX specification's recommendation.
- Seasonic SSR-850TD Power Supply Review
- Packaging, Contents, Exterior, And Cabling
- A Look Inside And Component Analysis
- Load Regulation, Hold-Up Time, And Inrush Current
- Efficiency, Temperature, And Noise
- Protection Features
- Cross-Load Tests And Infrared Images
- Transient Response Tests
- Ripple Measurements
- Performance, Performance Per Dollar, Noise, And Efficiency Ratings
- Pros, Cons, And Final Verdict