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Thursday, September 14, 2006
OCZ GameXStream GXS600 SLI-Ready Power Supply

3. Tests

Testing a PSU is not something easy. We put our system under what can be considered a heavy user load, using extreme CPU and graphics 3D use with 3D Mark 06 v1.0.2 and Sisoft Sandra 2007 burn-in tests. Our test PC setup was as follows:

  • OCZ 600W PSU
  • AMD Athlon 64 X2 4600+ AM2
  • ASUS M2N32Pro WS
  • 2GB Crucial PC-8000
  • 1xWD 80JB SATA I
  • 1xSeagate 80GB SATAII

All PSU ratings were monitored with Everest Ultimate Edition v3.0 and plotted with Microsoft Excel.

The following table lists the industry wide specifications for DC Output Voltage Regulation.

 

After running 3D Mark 06, the monitored outputs showed the deviation experienced by each rail during the stress tests:

A summary of the above graphs can be found in the following table:

Minimum
Maximum
Average
CPU1
%
0
100
54,9
CPU2
%
0
100
39,2
CPU Core
V
1,34
1,34
1,34
+3.3 V
V
3,25
3,26
3,25
+5 V
V
4,89
4,92
4,92
+12 V
V
12,22
12,29
12,27

The results are very good. All values are within standards, while even at full load, the voltage only changes by 0.01~0.07V. Adding a second VGA card on your system will put an additional load on the PSU.

Let's now see Sandra 2007 Burn-In Test results:

A summary of the above graphs can be found in the following table:

Minimum
Maximum
Average
CPU1
%
0
100
47,0
CPU2
%
0
100
47,3
CPU Core
V
1,34
1,34
1,34
+3.3 V
V
3,25
3,26
3,26
+5 V
V
4,89
4,92
4,92
+12 V
V
12,22
12,35
12,29

The results again are very good. All values are within the standards. Under full load, we see that the +12V rail deviates from 12.22 to 12.35, which is a difference of 0.13V or 1.06%, again within standards. In all cases, the CPU core was rock solid at 1.34V.




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