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Thread: Enermax Galaxy 1KW @SPCR

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    Default Enermax Galaxy 1KW @SPCR

    Review.
    The Enermax Galaxy has excellent features and near-flawless electrical performance performance. The Power Guard worked wonderfully, helping raise the bar with benefits like a tidy fault detection and explanation system. Voltage regulation was executed with finesse, and ripple was superb. These are all good things. If the dual 12V transformers are part and parcel of this package, well, that's good and fine, too.
    The unit was a source of terrible noise, hitting the top right around where it achieves best efficiency. Efficiency only barely reached 80% on our test rig, and it suffered badly at loads under ~100W; efficiency is the one aspect of electrical performance that's less than tops.

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    I find this interesting because of alot of complaints about the "Power Guard" and low +5V & +3.3V loads not allowing some people too POST

    5. LOW LOAD / CROSSLOAD PERFORMANCE
    Our usual low / no load testing could not be done. That little Power Guard guy does its job quite well. We were prevented from testing at very low power or using no load starting conditions. Later on, we were held back from overdriving the system, too. Best of all, when we were in proper operating range Power Guard left us well enough alone. Included was that handy-dandy light and beep setup to explain the source of an error. A clear table in the manual explained the meaning of each color and light combination. The Power Guard shows us how it's done.

    Neither could the crossload test be performed. Our usual procedure is to obtain ~75% load, almost entirely on the 12V lines, with only one amp each on the +5V and +3.3V lines. With a 1000W PSU, this is a pretty extreme load, some 750W in total. The Power Guard simply refused to let the PSU be turned on with this load, even if we built up to it by adding loading incrementally while the unit was running; it would shut down when the +5V and +3.3V lines got too low or when the 12V load got too high. If such conditions are not safe for the PSU, then the Power Guard's protective action is a good thing. Besides, it's hard to imagine how any system would demand over 740W on the 12V lines while pulling under 10W on the +5V and +3.3V lines.
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    "My computer has two Uber-X Graphics Cards and a kilowatt power supply!"
    They need to grow up and become open minded. Constricted streams lack water flow and nutrients to the area's that most need them

    Another - who in this modern world will expect silence at even 350W load? Thats BS and I have no idea why they don't just make a watercooled "silent" PSU to stop nagging about standard expected noise. If someone goes for a product which demands such power, they have automatically accepted noise pollution as their game. Heck, lets make a silent car that beats the Shevy with the 273mph top speed or a VanishingPoint that sounds 40dBA

    That said, there are obviously differences within a power supply from one to another - some like the SS OP1000 I saw was very noisy and others much less at the same load.
    Our most power-hungry Intel 670 (P4-3.8) processor rig with nVidia 6800GT video card drew ~214W DC from the power supply under full load — well within the capabilities of any modern power supply.
    Well that's perfect futureproofing isn't it now
    The efficiency was a bit of a letdown. It seems the marketing department might have been overzealous with their "80-85% efficiency from 20% to 100% load" claim
    Very odd and interesting how they get 53%-79% efficiency and at higher VAC input @ <30% loads, yet I've seen similar testings prove 77-80+% efficiency from lowest to highest load. Seems like there's a big difference from one to another unit, test setups, or something other which doesn't do too well for the concept of reviews.

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    Quote Originally Posted by CAD4466HK View Post
    I find this interesting because of alot of complaints about the "Power Guard" and low +5V & +3.3V loads not allowing some people too POST
    DFI is the only board I've heard this of so far.

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    Quote Originally Posted by Kab View Post
    DFI is the only board I've heard this of so far.
    I know people in person with this problem
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    Hmmm....I have one here that I am going to be doing soon. No load starting isn't a big deal though as this isn't really something it should be doing anyway....but the low load.

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    Quote Originally Posted by CAD4466HK View Post
    I know people in person with this problem

    Add one here. It is really odd too. Enhance-labeled 400W and 500W units refuse to boot on my computer but the SAME Enhance PSUs with a Silverstone label (both 400W and 500W) boot without a problem.

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    Quote Originally Posted by Kab View Post
    Another - who in this modern world will expect silence at even 350W load?
    The same people that would use a S12E+ if they wanted to power a heavy load. Silence and efficiency are high on my list.

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    SPCR has done good SMPS reviews for quite awhile now. My question is, why do they bother reviewing gaming or server units? Is it to feel smug about the silent units, better said, quieter units they seem to like? Anyone "needing" an 800~1000W unit will have other noise generators to mask a simple PSU fan.

    Yes I did read the review, to include the first few paragraphs.
    Worth a good looking over. http://www.badcaps.net/

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    Quote Originally Posted by Kab View Post
    Another - who in this modern world will expect silence at even 350W load?
    Low noise is a feature that's given at least lip service by just about every retail component maker today. It's not a small market segment, most people will go for lower noise if there is a choice, often willing to pay a little more. Low noise is perceived by most users as a mark of quality... luxury, even.

    There are a handful of powerful PSUs tested at SPCR that remained very quiet even at ~300W load. Examples:
    1) The Seasonic M12-700 started at 21 dBA@1m & climbed to just 25 dBA@1m at 300W.
    2) Ditto the Seasonic Energy 12 Plus 650.
    3) Corsair 520/620 stayed at 22 dBA at 300W and was just 29 dBA even at 400W.

    Admittedly these are all from one mfg... but there's a couple others almost as good -- Silverstone Element ST50EF-Plus, BeQuiet, etc.

    We're all grown up, btw, and there's nothing about close-minded about what was written in the article about the mythical need for >750W PSUs. I've studied many graphics card and gaming system reviews in all the major review sites and have yet to see any clear evidence that such power recommendations are valid. It's quite possible that some PSUs are unstable with some loads, but it's usually an issue of power quality, not quantity. As is usually the case, high power is actively pushed and encouraged by vendors because it benefits their bottom line. People buy into it mostly to "feel good". [An aside: Like a distant friend who just bought a V12 Jag for use in the clogged streets of HK where you mostly sit motionless in traffic and are lucky to break 30mph.]

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