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    Raidmax RX-520XP PSU
    Author: jonnyguru
    Date Posted:17/03/2005 10:07.18
    SLRating: SLRating: 8/10
    Bottom Line: There's more to picking a PSU than the wattage, as explained in the first of a series of forthcoming PSU reviews.

    Find the lowest price for this product
    Pages: 1 2 3 4 5 6 7 8
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    Aesthetic Overview:

    I rather enjoyed the Raid Max's understated snazziness. The power supply is trick looking without looking annoying. It's the same titanium finish as the Ultra and features blue lighting (albiet blue LED's as opposed to blue UV reactive fans with UV lighting.) The Raid Max also had some nice windows on it like the Ultra, but I think the reason why I think this power supply looks a tad understated is because the fans are on the front and back of the power supply and not the back and bottom, so the lighting is not concentrated in one area.

    Taking a look at the label:

    RAID MAX RX-520XP +3.3V +5V +12V -12V -5V +5VSB
    Max Output Current 26A 45A 18A 1A 0.8A 2.5A
    Max Combined Wattage 220W 216W 12W 4W 12.5W

    As you can see above, the Raid Max is very strong on the 5V rail and not so much on the 12V rail. I'm not sure why Raid Max didn't put more attention on voltage distribution. Take a look at the negative DC and 5V standby, for example. 28.5W alone is spent on those rails. Why?

    What power connectors do we get?

    The cables are all twisted to help reduce EMI. The two "VGA/HDD" and the ATX connectors have a shield on them.
    What's funny is that if I look really close at these shields, I can see the word "Tagan" on them. Oops!

    ATX connector 20+4 pin
    2 x 2 12V connectors 2
    2 x 3 PCIe 0
    6-pin Xeon/AUX connector 0
    5.25" Drive connectors 8*
    3.5" Drive connectors 2
    SATA Drive power connectors 2
    Fan only connectors (thermostatically controlled 12V only) 4

    * = 6 of the 5.25"connectors are typical where two of them have the EMI and ripple filtering on them.

    Here's a close up of the VGA/HDD and the ATX connector.
    The ATX connector actually has a modular design that allows it to easily become an EPS12V connector by just clipping on the extra four wires on the end (as shown.)
    There's also two 2x2 12V connectors that snap together and become one 2x4 connector.

    I've voided my warranty further by stripping the heat-shrink tubing off of the VGA/HDD connector to expose the iron ferrite cores and small capacitors used to clean ripple and reduce EMI.

    So now it's time for some testing!

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    1. Introduction
    2. Wattage
    3. Parameters
    4. Methodology
    5. RX-520XP
    6. Observations
    7. Overview
    8. Results/Conclusion

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