Ripple On 3.3V Rail

07:00 - Monday 11 July 2005 by Frank Völkel
Source: Tom's Hardware – Keywords: stress, test

Table of content:
30 – Ripple On 3.3V Rail
  1. 1 – Profits Or Quality?
  2. 2 – Still An Eldorado? 600 Percent Profit Margin Possible
  3. 3 – Our Motivation - Why Are We Running PSUs Constantly Under Full Load?
  4. 4 – Test Methodology
  5. 5 – Stressing With Highly Accurate Electronic Loads
  6. 6 – Noise Level And Measurement Of Temperatures
  7. 7 – Data Collection And Live Upload
  8. 8 – AcBel ATX-550CA -AB8FM: Failure - But 10-Year Warranty
  9. 9 – Antec Phantom 500: Quiet With High Efficiency
  10. 10 – Antec True Power 2.0: Mediocre Efficiency
  11. 11 – Aopen Prima Power 700: Super Results - No SLI
  12. 12 – BeQuiet BQT B5-520W-S1.3: Loose Transistor Triggers Failure
  13. 13 – Cooler Master Real Power RS-550-ACLY: Shutdown At Full Load
  14. 14 – Enermax Coolergiant EG485AX-VHB(W): Flawed Former Champ
  15. 15 – Enermax Noisetaker EG701AX-VE(W): Perfect Connections And Quiet
  16. 16 – Epower Silent Engine Xscale 470: Loud At Full Load
  17. 17 – Fortron FSP300-60GNF: Soundless With High Efficiency
  18. 18 – HEC AcePower ACE580UB: Failure At High Load
  19. 19 – Hiper Type R580: Not Within Specifications
  20. 20 – Jeantech Arctic JN120F-600AP12V2: Average Results
  21. 21 – OCZ PowerStream 600W - Features
  22. 22 – PC Power & Cooling Turbo-Cool 510: Very Loud At Full Load
  23. 23 – PC Power & Cooling Turbo-Cool 850 SSI: Excellent Price And Performance
  24. 24 – Seasonic S12 600: Efficient And Quiet
  25. 25 – Silverstone ST65ZF: Loud And Inefficient But Low-Cost
  26. 26 – Spire SP-500W: High Noise Levels At Full Load
  27. 27 – Features Tables
  28. 28 – Efficiency
  29. 29 – Load - Total Power Sustained
  30. 30 – Ripple On 3.3V Rail

Ripple On 3.3V Rail

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Our Recommendations: Fortron And Seasonic

The results from our 6-week Live Stress Test from the THG Lab in Munich are now all in. The soundless Fortron FSP300-60GNF was unphased throughout the Stress Test and offers terrific efficiency that is unparalleled in the 300 watt class. Another argument in its favor is its inexpensive price for a passive power supply of $95.

The second award goes to the Seasonic S12 in the 600 watt class. This power supply is a favorite for its extraordinarily high efficiency of 83.4 percent and its quiet operation, even at full load. Compared to competitors it is low-priced at $140.


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