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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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    Observations

    Keeping things quiet and cool.

    To keep things quiet, the Raid Max is built on a Topower base which features Topower's typical affair of thermostatically controlled fans mounted with rubber grommets. Then, there are four fan headers that are thermostatically controlled and run as low as 4V, so your case fans can spin slowly when your PC's ambient temperature is cool, or fast when your PC is warm.


    Noise is a priority for Raid Max. That's another good reason to start with a Topower base. They mount their fans through rubber grommets.

    Speaking of fans, the Raid Max also will keep your fans spinning for a full three minutes even after your PC is shut off to help cool down the computer even after it has been shut down. Something they call "ECASO" (Enhanced Cooling After System Off) You know what they say! ECASO, Su Casa!


    Inside, we can see the similarities between this PSU and an OCZ, Tagan and TTGI. This is because they're all made by Topower. Note the large heat sinks.
    Lots of surface area here to help dissipate heat. But there's some subtleties that set it apart from it's cousins.

    Nobody likes interference!

    Another attention to detail that Raid Max includes is it's close scrutiny to EMI. All of the wires are twisted to help prevent EMI. Raid Max has also added iron ferrite cores to two of the 5.25" drive power connectors, labeled VGA/HDD, as well as the AC input power cable. They have also added a few capacitors to the two VGA/HDD cables to help clean any unwanted ripple in the lines.


    Good size caps, good size heat sinks, front to back air flow... This is a well built power supply.

    Digging them heat sinks!

    One thing I really liked about this power supply is how quiet the fans were because of how slow the fans were spinning. The main reason this worked out so well is because the heatsinks inside of the unit were absolutely huge. The sinks came up through the center of the PSU and then spread out from there essentially canopying the entire inside of the power supply with a complex network of fins. The large amount of surface area meant the sinks were able to dissipate more heat, requiring less air flow provided by the fans.



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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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