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Reviews » Power Supplies

Ultra LSX 750W Power Supply Review

Price: $139.99


Why isn’t the power supply given the same careful consideration I see time and time again when forum members are seeking advice on other parts for their next build? Many members do appreciate the benefits of a good quality power supply, but you’ll still see many forum signatures containing high end hardware in combination with some of the cheapest power supplies on the market. The sad thing is, they usually give years of relatively trouble free operation, but push them at your peril. Next time you have a minute or two, have a look at one or two cheap generic power supplies in the 600W range and you’ll notice they rarely have more than one 6-pin PCI-E connector. I’ve just had a look on the website of one of the major UK computer parts suppliers and they offer a 700W power supply, with one 6-pin PCI-E connector, for only £23.00, and it’s a hot seller. Unbelievable! This tells me the manufacturers of these units would prefer you didn’t fully load them and to assist you they only offer one 6-pin PCI-E connector so you can’t! The strength of the +12V rail and their inability to supply their full rated load at realistic working temperatures are the problem. The manufacturers of high end 600-700W units are confident they won’t fizz if fully loaded and to that end, they are often supplied with four or more 6-pin PCI-E connectors so you can fully utilize every available watt. Next time you require a power supply, give it a little thought and don’t put your expensive hardware at risk, however small that may be. Will the next power supply reviewed by OCC be the one for you? Read on and let's find out.

Ultra Products come under the umbrella of Systemax Inc., whose world headquarters are situated in New York, USA. Ultra Products offers a wide range of products from computer cases, memory and power supplies to its complete Scout SLI Gamer systems. This time around, I’m going to look at one of its power supplies, the Ultra LSX 750W. The Ultra LSX 750W, according to the website, is an advanced and affordable unit aimed at satisfying your system’s power needs. The unit is 80 Plus Bronze certified and comes with a limited lifetime warranty, but how does it perform? Let’s find out.

Closer Look:

The Ultra LSX 750W power supply packaging, with its combination of mirror finish silver, blue and black, looks the part and will certainly get it noticed. The front face of the box carries a photograph of the power supply, along with some of the main features with small illustrative photographs, as well as NVIDIA SLI Ready and limited lifetime warranty logos. The rear face of the box carries another power supply photograph along with the accessories set, a specification table, and AC input requirements.












Ultra LSX 750W ATX power supply model details on the top face and a plain mirror finish silver base.



The side panels of the box give information on the connector type and quantities, accessories, and some of the main features in both English and French to no doubt cater to the Canadian market.



Lifting the lid, the user manual sits on top of a foam protector that includes a cutout to house the accessories under a clear plastic lid. The power supply sits underneath the foam neatly wrapped in a plastic bag with the power cord and captive cable set bound and tucked neatly to the side. You’ll probably notice at this point that the Ultra LSX 750W power supply isn’t modular and all the cables reminded me very much of the Corsair TX750W.



Bag bound power supply along with the full box contents, which includes user manual, anti-vibration mounting gasket, cable ties, Velcro straps, and a choice of standard chrome or black thumb mounting screws.



The Ultra LSX 750W power supply is very well packaged and comes with a great set of accessories. All’s good so far so let’s move on.

  1. Introduction & Closer Look
  2. Closer Look (The Power Supply)
  3. Specification & Features
  4. Testing: DC Voltage Load Regulation
  5. Testing: Efficiency, Power Factor & DC Quality
  6. Testing: Temperature, Noise Level & Fan Speed
  7. Conclusion
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