Power Analysis

On Figure 14 you can see StealthXstream 600 W label stating all its power specs.

click to enlarge
Figure 14: Power supply label.

This power supply has four virtual rails, divided like this:

• +12V1 (yellow wire with blue stripe): ATX12V connector labeled as “CPU1”.
• +12V2 (yellow wire with green stripe): ATX12V connector labeled as “CPU2”.
• +12V3 (solid yellow wire): Main motherboard cable and all peripheral connectors.
• +12V4 (yellow wire with black stripe): Video card auxiliary power connectors.

For a better power distribution, we think that OCZ should had put the two video card power cables on separated rails, putting the two ATX12V connectors on the same rail (but keeping them using separated wires).

Another small issue with the video card auxiliary power connectors is the way they are connected. From inside the power supply come only three +12 V wires to feed them, so it seems that this cable was originally intended for the use of just one video card auxiliary power connector and OCZ adapted this cable to add a second 6-pin connector. The first +12 V wire on the cable is connected exclusively to the plug labeled as “PCI-E1”, while the other two wires are slip into five wires distributed over the two connectors. We preferred to see each connector using individual wires coming from inside the power supply.

Let’s now see if this power supply can really deliver 600 W of power.

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