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Appeared on: Friday, October 31, 2008
OCZ ModXStream Pro 600W


1. Features, specifications

OCZ's new ModXStream Pro Series is a power supply solution for gaming systems and they can power both NVIDIA SLI and ATI CrossFire modes.

The PSU has a load-controlled 140mm fan for efficient cooling as well as quiet operation. It also features an efficiency of up to 86% at typical load and up to 82% at full load, according to the company..

The OCZ ModXStream provides Universal Input and Active PFC (Power Factor Correction) to effectively regulate input voltage across worldwide power grids and maintain an economical, stable supply of power.

- Features

- Technical specifications       


2. Package

OCZ Technology sent us the retail package of the 600W Power Supply model, part number (OCZ600MXSP). The device retails for $95.00 ~ $99.00 .

The size of the PSU is 150 x 160 x 86mm, typically following the ATX v2.2 standard. The inclusion of the 140mm fan is kind of new for the OCZ products and it works really quiet. The fan is also load-controlled, aka will spin according to the workload.

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The power supply has a matte black smooth finish that adds points to the overall look and design.

The edges are not sharp so you can easily handle it . The power supply has also a modular design that helps eliminate the cable mess you find inside most PC cases. The red connectors handle the the the PCI-E cables, while the four black outputs will power the rest components of your PC.

The rear of the OCZ PUS has a honeycomb design that helps keeping the PSU's internal temperature low.

The ModXstream Pro series has a typical design with four rails, each handing different voltages. The two +12V outputs are connected to the same rail, offering a up to 25A. The +5 and the +3.3V lines can also offer up to 25A, meaning that the PSU can efficiently power SLI/Crossfire configurations.

Several modular cables included in the package:

Their length is typical at 80cm for SATA/IDE cables and 48cm for the PCI-e cables . However, the 24-pin ATX and CPU cables are not very long (46cm).  The IDE cables have molex design. We should note here that we didn't t like the fact that the 20+4 and 4+4pin CPU cables are not joined.


3. Using the device

As always, we should note here that testing a PSU is not very easy and it requires use of specific equipment that would provide information about the current the PSU offers under load, the efficiency of the PSU at average operating levels as well as any power or current limits our PSU might have.

Unfortunately, we don't have such a testing equipment in our labs so what we can just do is to use the device and have an idea of its performance using worst case estimations. So we tried to add enough load to the CPU and graphics systems using a 3D Mark Vantage and PC Mark Vantage. Our test PC was also loaded::

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

 

After running both benchmarks, we monitored the outputs (voltage). A summary of the results can be found in the following table:

Minimum
Maximum
+3.3 V
3,24 V
3,26 V
+5 V
4,88 V
4,91 V
+12 V
12,21 V
12,26 V

The results are very good considering that we are using a dual graphic cards setup. The variation for the +12V is acceptable (~0.05V).


4. Summary

The ModXStream-Pro series from OCZ Technology seems to be a stable power supply unit priced for the mid-range market.

The device has a modular design that allows you to plug the power cables yourself, according to your needs. This would please many users, mostly gamers. The 140mm fan that speeds up/down according to the produced load, meaning that the PSU will not produce noise during your daily PC use. The provided 600 Watt of power is enough to efficiently power your dual graphics card configurations. After all, the product is SLI-certified. But still, a triple/quad SLI setup would possibly require more power.

We would like to see longer power cables inside the box for easier installation in The power full size PC cases.

Our basic performance tests did not show any issues. Thought the configuration of our test PC was power demanding, the PSU showed stability and efficiency. Of course, further testing using specialized equipment would be required in order to come up with safer conclusions. For the end-user's perspective, the device will do the job.

OCZ's 3-year PowerSwap replacement program warranty, gives you no more endless return-for-repair loops.

Adding to all these the retail price of the OCZ ModXStream-Pro 600 Watt PSU, which is under $100, we can safely say that we have to do with a safe buy here, at least.

- The Good

- The Bad



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