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Home > Hardware Reviews > PC Parts

Wednesday, July 16, 2008
OCZ EliteXStream 800W

3. Tests

Which factors contribute to a quality power supply unit? Well, it should be able to perform as rated even under heavy loads and of course, it should offer reliability in time.

Though our measuring equipment is yet upgraded in order to offer hardware measurements for the provided outputs of the PSU, we have to compromise with simpler testing procedures, which however may lack accuracy.

We tried to overload our test PC with extensive CPU+3D usage via 3D Mark Vantage and PC Mark Vantage. On the hardware side, the PC configuration was as follows:

  • Asus P5K Premium + Intel Q9300
  • 2x Asus EN9800GTX
  • 2x1GB Crucial PC2-8000
  • 1xWD 80JB SATA I
  • 1xSeagate 80GB SATAII
  • Windows VISTA 32bit SP1

All PSU ratings were monitored with Everest Ultimate Edition v3.0. The following table lists the industry wide specifications for DC Output Voltage Regulation.

 

After running both benchmarks, the monitored outputs showed us how much stress the PSU has taken. A summary of the results can be found at the following table:

Minimum
Maximum
Average
+3.3 V
V
3,25
3,26
3,25
+5 V
V
4,89
4,91
4,90
+12 V
V
12,22
12,26
12,24

The results look very good. All ratings are within the standard range, while even at full load, the voltage only changes by 0.01~0.04V under a dual VGA setup.

In addition, the 120mm fan does not produce any noise even at full rotation speeds.




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