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POWER SUPPLY UNITS

XG Magnum External 600w PSU
By: Rich Smith
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    2006-07-25

    Table of Contents:
  • XG Magnum External 600w PSU
  • Opening the box
  • Hooking it up
  • How about a little test?
  • Summing it up

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    XG Magnum External 600w PSU - How about a little test?


    (Page 4 of 5 )

    There are a couple of things I wanted to test with this PSU. First, as with all PSUs, I wanted to test the voltage it puts out, both idle and under load.  But secondly, since this PSU touts itself as a fan-less PSU, how hot does it get as the load increases?

    Above is a pic of the PSU sticker.  Note the amps on the two 12V rails, 18A and 22A.  Those are quite respectable numbers.

    So here is my test rig:

    • EPoX 8U1697 motherboard with AMD 64 3000+ CPU and 1GB OCZ RAM
    • PowerColor X1300 video card with 512MB RAM
    • XG Magnum EX 600w External PSU
    • Pioneer DVD +/-R Reader/Writer
    • Samsung 120GB IDE HD
    • Running Windows XP Media Center Edition

    When testing the voltage, I did two tests. I tested first while the machine was idle, sitting on the desktop in Windows.  Then, I put load on the box.  For my load, I zipped files from the DVD onto the hard drive, while running SuperPi continuously in a loop. After letting this run for 10 minutes, I took the measurements again.  Here is what I found:

    Spec

    Idle

    Load

    3.3V

    3.35V

    3.34V

    5.0V

    5.09V

    5.06V

    12V

    12.33V

    12.32V

    12V #2

    12.33V

    12.31V

    As you can see, the PSU performed quite admirably.  Here's a pic of the PSU as it was running:

    The above pic was taken after letting my "load" scenario run for well over an hour.  I was unable to get the PSU to get any hotter than 39 degrees Celsius.  In the meantime, the temperature inside the case was quite low in comparison to a case with an internal PSU.

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