Introduction and Features

OCZ’s new ModXStream PSU delivers up to 600W of well regulated power with very good efficiency and minimal noise and comes with a nice combination of fixed and modular cables.
In addition to high performance memory and numerous PC accessories, OCZ Technology offers a full line of PC switching mode power supplies.   The ModXStream Pro series is targeted towards gamers and modders alike and comes in an 500W, 600W and 700W models.  The new ModXStream Pro 600W power supply features dual +12V outputs, is NVIDIA SLI certified, and comes with OCZ’s 3-Year PowerSwap warranty. 

OCZ ModXStream Pro 600W Power Supply Review - Cases and Cooling 35
(Courtesy of OCZ)

Here is what OCZ has to say about their ModXStream Pro 600W power supply:

Professional-grade yet designed with gamers and modders in mind, this PSU is stable, robust, and sports a sleek look and compact form factor.  Kept ultra-cool with a load-controlled 140mm fan, the ModXStream Pro was engineered to be the quietest PSU available and eliminate distracting noises from your PC.  80+ Certified, featuring up to 86% efficiency at typical load, this leading edge power supply remains rock solid and powerful while retaining superior efficiency under load.

As a gamer or case modder, modular cabling is a necessity when building a cool and orderly system.  To optimize airflow and eliminate cable mazes, the ModXStream Pro is equipped with EZMod Technology to allow complete customization of your power system by utilizing only the cables you require.

OCZ ModXStream Pro 600W PSU Key Features:

•    600W Total power at 50°C
•    Dual +12V outputs (42A/504W)
•    Ultra quiet, superior cooling with single 140mm fan
•    Active Power Factor Correction with Universal AC input
•    High efficiency (86%) and 80-Plus certified
•    24-pin ATX, 8-pin EPS, 2 PCI-E, and 12 drive connectors
•    High reliability (100,000 Hr. MTBF @ 25C)
•    NVIDIA SLI Certified
•    Standard ATX form factor (160mm long)
•    OCZ Premium 3-Year PowerSwap warranty

PSU Testing Methodology

Establishing an accurate load is critical to testing and evaluating a PC power supply.  PCPerspective’s power supply test bench can place a precise 2,000 watt DC load on the PSU under test.  Each power supply is tested under controlled, real-world conditions up to its maximum rated load (at 40ºC), using both 115 VAC and 240 VAC line voltage.  Our current suite of tests includes:

•    DC Load Regulation
•    DC Line Regulation
•    DC Cross-load (unbalanced load)
•    AC Ripple and Noise
•    Power Factor
•    Efficiency
•    Differential Temperature
•    Noise

OCZ ModXStream Pro 600W Power Supply Review - Cases and Cooling 36

The OCZ ModXStream Pro 600W power supply was evaluated on both features and performance.  A full range of equipment was used to test the power supply under controlled load conditions. 

•    (2) CSI3710A Programmable DC load (+3.3V and +5V outputs)
•    (4) CSI3711A Programmable DC load (+12V1, +12V2, +12V3, and +12V4)
•    FLUKE 87-III True RMS digital multimeter (Accuracy ±0.05%)
•    Extech 380803 Power Analyzer (Accuracy ±0.5% of full scale)
•    Hitachi V-650F 60 MHz dual trace oscilloscope (Accuracy ±3%)
•    Powerstat Variable Autotransformer, 1.4 KVA, 0-140 VAC
•    FLUKE  52-II digital thermometer (Accuracy ±0.3ºC/0.5ºF)
•    Extech Model 407738 digital sound level meter (Accuracy ±1.5 dB)
•    Custom PC60 enclosure to simulate real-world operating conditions

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