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OCZ Stealth X Stream 600W Review

paulktreg    -   June 16, 2008
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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

 

 

 

Electrical Safety Test Class 1
Manufacturer/Model
Pass/Fail
OCZ600SXS
Pass

 

 

 

 

 

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)

DC Line
Load Current
Load Power
V Limits
Actual Voltage
Pass/Fail
+3V3
3.04A
10.03W
3.135V – 3.465V
3.30V
Pass
+5V0
4.60A
22.77W
4.75V – 5.25V
4.95V
Pass
+12V0(1)
2.57A
31.41W
11.4V – 12.6V
12.22V
Pass
+12V0(2)
2.57A
31.33W
11.4V – 12.6V
12.19V
Pass
+12V0(3)
2.55A
31.11W
11.4V – 12.6V
12.20V
Pass
+12V0(4)
2.59A
31.57W
11.4V – 12.6V
12.19V
Pass
-12V0
0.36A
4.42W
10.8V – 13.2V
12.27V
Pass
+5VSB
2.18A
10.79W
4.75V – 5.25V
4.95V
Pass

Total Power Supply Load

173.43W
 

 

Total Load = 462.11W (77.02% of rated maximum)

DC Line
Load Current
Load Power
V Limits
Actual Voltage
Pass/Fail
+3V3
7.61A
24.58W
3.135V – 3.465V
3.23V
Pass
+5V0
9.03A
44.07W
4.75V – 5.25V
4.88V
Pass
+12V0(1)
7.92A
94.56W
11.4V – 12.6V
11.94V
Pass
+12V0(2)
7.90A
94.33W
11.4V – 12.6V
11.94V
Pass
+12V0(3)
7.89A
94.44W
11.4V – 12.6V
11.97V
Pass
+12V0(4)
7.89A
94.76W
11.4V – 12.6V
12.01V
Pass
-12V0
0.35A
4.61W
10.8V – 13.2V
12.46V
Pass
+5VSB
2.18A
10.76W
4.75V – 5.25V
4.94V
Pass

Total Power Supply Load

462.11W
 

 

Total Load = 569.24W (94.87% of rated maximum)

DC Line
Load Current
Load Power
V Limits
Actual Voltage
Pass/Fail
+3V3
11.64A
36.78W
3.135V – 3.465V
3.16V
Pass
+5V0
13.12A
62.45W
4.75V – 5.25V
4.76V
Pass
+12V0(1)
11.17A
133.37W
11.4V – 12.6V
11.94V
Pass
+12V0(2)
11.03A
130.71W
11.4V – 12.6V
11.85V
Pass
+12V0(3)
7.96A
95.60W
11.4V – 12.6V
12.01V
Pass
+12V0(4)
7.92A
94.96W
11.4V – 12.6V
11.99V
Pass
-12V0
0.37A
4.65W
10.8V – 13.2V
12.56V
Pass
+5VSB
2.17A
10.72W
4.75V – 5.25V
4.94V
Pass

Total Power Supply Load

569.24W
 

 

No problems there!

Efficiency and Power Factor

 

Output And Efficiency

DC Load (W)
AC Load (VA)
AC Load (W)
PF
Efficiency (%)
Pass/Fail
173.43
232
216
0.93
80.3
Pass
462.11
615
598
0.97
77.3
Pass
569.24
797
779
0.98
73.1
Pass

 

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.




  1. Introduction & Closer look
  2. Specifications & Features
  3. Testing
  4. Testing (Continued)
  5. Conclusion
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