A Closer Look (Cont’d)
The OCZ ProXStream 1,000W power supply has a full assortment of cables and connectors. All of the cables are hard-wired into the PSU chassis. The wiring harnesses measure approximately 21′ long to the first connector and all of the cables are covered with plastic mesh sleeving. The peripheral drive connectors use the EZ grip style connectors.
- Main power connector (20/4-pin)
- EPS 12V (8-pin)
- ATX 12V (4-pin)
- (4) PCI Express (6-pin)
- (6) Peripheral Optical/HDD (4-pin)
- (2) Peripheral FDD (4-pin)
- (6) Serial ATA (15-pin)
Here are a few pictures showing the layout and components inside the OCZ ProXStream 1kW power supply. OCZ has typically used Topower to manufacture power supplies for them in the past but they are now using Fortron-Source (FSP) to build the ProXStream and GameXStream units. FSP has an excellent reputation in the power supply industry so this should be a good move.
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The OCZ ProXStream power supply uses two printed circuit boards stacked on top of each other. This allows a lot of components to be stuffed into a relatively small area, which results in an unusually small chassis size for a 1,000W power supply!
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Just like the GameXstream 700W PSU, the ProXStream 1kW unit uses two AC bridge rectifiers instead of one, three power MOSFET transistors in the Active PFC stage instead of two, and eight Schottky rectifiers in the final DC stage (four for the +12V, two for the +5V, and two for the +3.3V output). Using more components in parallel reduces the load on individual parts, which allows them to run cooler and more efficient.
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