OCZ Stealth X Stream 600W Review
paulktreg - June 16, 2008» Discuss this article (3)
Testing:
The old way of testing Power supplies with a wing and a prayer, is no longer sufficient in the tech savvy world we live in. People want to know just what kind of power a supply can actually deliver and still conform to the ATX specifications. With a new testing methodology, OCC will move into the future to provide a more current testing regime, to accurately show how a power supply performs. For more information on our testing methodology, please browse our testing methodology.
NOTE: The -5V0 line is no longer required in the ATX12V V2.2 standard and will be totally disregarded during testing.
Electrical Safety
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Electrical Safety Test Class 1
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Manufacturer/Model
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Pass/Fail
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OCZ600SXS
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Pass
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Short Circuit Protection
The manufacturer claims that in the event of an output short circuit, defined as less than 0.1 ohm, on the +3.3V, +5V and all 12V lines, the power supply will shut down and latch off without damage to the power supply. I tested this claim by shorting, in turn, the +3.3V, +5V and all of the 12V lines. The power supply shut down as claimed and resumed normal operation once the short was removed and the unit turned off for more than two seconds.
DC Output Voltage Load Regulation
Total Load = 173.43W (28.91% of rated maximum)
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DC Line
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Load Current
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Load Power
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V Limits
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Actual Voltage
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Pass/Fail
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+3V3
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3.04A
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10.03W
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3.135V – 3.465V
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3.30V
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Pass
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+5V0
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4.60A
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22.77W
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4.75V – 5.25V
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4.95V
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Pass
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+12V0(1)
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2.57A
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31.41W
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11.4V – 12.6V
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12.22V
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Pass
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+12V0(2)
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2.57A
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31.33W
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11.4V – 12.6V
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12.19V
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Pass
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+12V0(3)
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2.55A
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31.11W
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11.4V – 12.6V
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12.20V
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Pass
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+12V0(4)
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2.59A
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31.57W
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11.4V – 12.6V
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12.19V
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Pass
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-12V0
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0.36A
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4.42W
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10.8V – 13.2V
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12.27V
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Pass
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+5VSB
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2.18A
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10.79W
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4.75V – 5.25V
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4.95V
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Pass
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Total Power Supply Load |
173.43W
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Total Load = 462.11W (77.02% of rated maximum)
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DC Line
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Load Current
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Load Power
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V Limits
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Actual Voltage
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Pass/Fail
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+3V3
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7.61A
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24.58W
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3.135V – 3.465V
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3.23V
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Pass
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+5V0
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9.03A
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44.07W
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4.75V – 5.25V
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4.88V
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Pass
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+12V0(1)
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7.92A
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94.56W
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11.4V – 12.6V
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11.94V
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Pass
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+12V0(2)
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7.90A
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94.33W
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11.4V – 12.6V
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11.94V
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Pass
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+12V0(3)
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7.89A
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94.44W
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11.4V – 12.6V
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11.97V
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Pass
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+12V0(4)
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7.89A
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94.76W
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11.4V – 12.6V
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12.01V
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Pass
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-12V0
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0.35A
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4.61W
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10.8V – 13.2V
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12.46V
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Pass
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+5VSB
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2.18A
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10.76W
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4.75V – 5.25V
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4.94V
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Pass
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Total Power Supply Load |
462.11W
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Total Load = 569.24W (94.87% of rated maximum)
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DC Line
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Load Current
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Load Power
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V Limits
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Actual Voltage
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Pass/Fail
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+3V3
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11.64A
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36.78W
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3.135V – 3.465V
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3.16V
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Pass
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+5V0
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13.12A
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62.45W
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4.75V – 5.25V
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4.76V
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Pass
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+12V0(1)
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11.17A
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133.37W
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11.4V – 12.6V
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11.94V
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Pass
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+12V0(2)
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11.03A
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130.71W
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11.4V – 12.6V
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11.85V
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Pass
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+12V0(3)
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7.96A
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95.60W
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11.4V – 12.6V
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12.01V
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Pass
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+12V0(4)
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7.92A
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94.96W
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11.4V – 12.6V
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11.99V
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Pass
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-12V0
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0.37A
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4.65W
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10.8V – 13.2V
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12.56V
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Pass
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+5VSB
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2.17A
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10.72W
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4.75V – 5.25V
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4.94V
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Pass
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Total Power Supply Load |
569.24W
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No problems there!
Efficiency and Power Factor
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Output And Efficiency |
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DC Load (W)
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AC Load (VA)
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AC Load (W)
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PF
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Efficiency (%)
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Pass/Fail
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173.43
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232
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216
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0.93
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80.3
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Pass
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462.11
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615
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598
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0.97
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77.3
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Pass
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569.24
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797
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779
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0.98
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73.1
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Pass
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The power supply did not meet its claimed efficiency of >85%, or the ATX12V V2.2 recommended minimum efficiency, but did meet the required minimum efficiency; I have to therefore give it an overall pass.
