DC Output Stability and Quality





The 3.3V rail is a little unstable, with a low result of just 3.17V -- still within the specs but lower than we like to see. The 5V rail is similar, dropping very close to the lower limit of what is allowed; at 4.79V it is very close to falling out of spec. On the other hand, the 12V rail is very good, starting at 12.08V and only drop to 11.86V with 110% load. The 12V rail is by far the most important, and the overall voltage is good if not great.




The ripple is higher than we expected from such a unit, showing the first real flaw. 25mV on the 12V rail is still nothing to worry about, but it is much higher than what we have tested with competing power supplies.

Testing with the Chroma ATE Programmable Load Efficiency and PFC
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  • JarredWalton - Thursday, October 30, 2008 - link

    What, like http://www.anandtech.com/casecoolingpsus/showdoc.a...">our VX450W review? :)
  • spidey81 - Thursday, October 30, 2008 - link

    sorry...don't know how I missed that. Thanks for pointing that out! :)
  • Breogan - Thursday, October 30, 2008 - link

    The TX line is built both by Seasonic and CWT too: the TX650 is built by Seasonic, while the TX750 is made by CWT.
  • JarredWalton - Thursday, October 30, 2008 - link

    That's what we stated with the following, although we didn't explicitly list any models:

    "Corsair power supplies come from two different ODMs, Seasonic and Channel Well (CWT). Both are very good manufacturers for high-end products, but Seasonic tends to be a more conservative company that doesn't want to grow their business too fast whereas CWT is kind of the opposite and is interested in selling a large number of power supplies through many different companies. Corsair blurs the boundaries between these ODMs, letting the two manufacturers produce different wattages for the same series."
  • Christoph Katzer - Thursday, October 30, 2008 - link

    There was a sentence suggesting the TX650 could be also CWT, but I changed it after.
  • Soubriquet - Thursday, October 30, 2008 - link

    Thanks for the article, one suggestion for future consideration, it would be interesting to see some of the graphs comparing like for like with with other PSUs.

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