Cooler Master Real Power RS-550-ACLY: Shutdown At Full Load

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

Table of content:
13 – Cooler Master Real Power RS-55...
  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

Cooler Master Real Power RS-550-ACLY: Shutdown At Full Load

Ad

Didn't make it through the Stress Test: the Cooler Master Real Power with 550 watts - a purely theoretical number. In practice it shuts down.

The graphic above shows the power supply connections and their length in centimeters. Slim pickins: only two SATA and one floppy connector are definitely not enough.
Features

Lit up: The Cooler Master RS-550-ACLY with 550 watts in operation.

The power supply unit is processed relatively well. There aren't any pluggable cables.

Identification plate of the Cooler Master: The unit is supposed to rack up 550 watts of continuous output.

Packaging of the Cooler Master: The layout is upside down!
Test Results

The well-known manufacturer Cooler Master recently started offering PSUs. The fact that these products are not yet fully developed was evidenced by our test under full load: The device switched off after a few hours in operation, delivering a repeat performance even after we restarted it. We could not locate any defects on the power supply unit. Due to the abbreviated operating time, we were unable to provide any measurement data. Cooler Master should size the unit better so that it will shut off later in event of an overload.

Cooler Master Real Power RS-550-ACLY
Test Phase 1
Test Description Lower Limit Upper Limit Result
Increase load from 20% to 100% of nominal load limit 110 watts 550 watts Passed
Test Phase 2
Test Description Load Result
Steady load at 100% nominal load 550 watts Durchgefallen

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