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  • Origo - Monday, January 12, 2009 - link

    How can Silverstone Element ST40EF 400W get so good score on quietness and efficiency compared to Silverstone Element Plus ST50EF-Plus 500W?
    This (SPCR) review says Silverstone Element Plus ST50EF-Plus not that quiet or efficient:
    [url]http://www.silentpcreview.com/article670-page1.htm...[/url]
    Reply
  • 7Enigma - Wednesday, January 07, 2009 - link

    Could you comment on this PSU? I know you have a 500 and 550w article coming up but an incredible deal ($25 after rebate) came up on this PSU and I'll snatch it up for my build if it's good.

    Thanks.
    Reply
  • Markstar - Wednesday, January 07, 2009 - link

    As usual, thank you for your interesting review and the effort you surely put into it!

    Greetz from P3D!
    Reply
  • yehuda - Sunday, January 04, 2009 - link

    This is the kind of article I like to keep in my favorites and refer people to. Reply
  • Noya - Saturday, January 03, 2009 - link

    I skimmed through, but I didn't see what type of set-ups you'd recommend for this class of PSU.

    So, I'll post what I'm using with a Corsair vx450:
    Q8200 @ 3.3ghz (475x7)
    8gb Ballistix DDR2-800 cas4 @ 475mhz (4x2gb)
    Evga 9800gtx (stock clocked for now)
    Gigabyte P-45 UD3P
    3 x 7200rpm sata disks
    2 x DVD/RW
    3 x 120mm fans

    It's been running fine for almost a month now (thanks MS for the 30% eBay cashback lol). I previously used this vx450 in my first build (s939 Opteron/7600gt).
    Reply
  • OddJensen - Monday, January 05, 2009 - link

    The VX450 is a pretty good PSU and under optimal conditions you can probably draw more than the max. rated wattage (450W @ 50C ambient). Though personally I like to go with a bit more headroom taking future upgrades into consideration. Reply
  • kenyee - Friday, January 02, 2009 - link

    That's another way to group the power supplies.
    That's one reason I still use Enermax Liberty power supplies...they're a nice small size for HTPC's and the modular connectors are important when there isn't much space. Using this affects power efficiency which is probably why the highest efficiency ones don't use them...
    Reply
  • proci - Thursday, January 01, 2009 - link

    its a very nice test, i like it. i miss some words from the ripple side, they could be useful to those, who don't want to analyze so many graphs.

    i have an FSP 500 GLN60 (active pfc, smooth oemgrey color:D), i wanted a BS2, but the two seems to be identical to me (ok, it only has one 6pin connector). and i'm out of connectors (6molex, 4sata... with 7 HDDs/opticals, 2 fan controllers and only one video card). so having many connectors is a good thing, although you can buy molex duplicators (only downside is they cost money). and its still more than enough to power my system (q6600@3.0, hd3870, lots of vents, hdds...).

    and most of the computers are fine with just 200-300W. its a shame, that there aren't that many good PSUs on the low edge, because having a monster of PSU means you will have bad efficiency in idle with most of the computers. ofc you can build a computer, which eats up 1000W, but besides skulltrail its hard, and mostly needs enthusiast end water cooling/compressor for cooling purposes.

    and having a good PSU is like having good safety in your car: you only notice it when it fails, but then it is already too late. and buying a noname PSU means that you playing russian roulette all the time...
    Reply
  • Martin84a - Thursday, January 01, 2009 - link

    I find it weird people keep recommending Sea Sonic. I'm currently loojing for a new PSU in the 500-600watt range. I remember toms 24 hour PSU stress test, where Enermax, Zalman, Cooler Master and Silverstone where the last remaining, while Seasonic had failed with the rest.
    http://www.tomshardware.com/de/stresstest-netzteil...">http://www.tomshardware.com/de/stresste...etzteile...
    I just read Hardocps Seasonic S12II-500 watt psu review, and the transient load test showed awful results.
    http://hardocp.com/article.html?art=MTM2NCw3LCxoZW...">http://hardocp.com/article.html?art=MTM2NCw3LCxoZW...
    Think computer showed a lot of undervoltage ripple too, and on the 12v a lot of switching between overvoltage and undervoltage. That doesnt look good.
    http://www.thinkcomputers.org/index.php?x=reviews&...">http://www.thinkcomputers.org/index.php?x=reviews&...
    And i have read about the DOA Seasonics too, and the ones failing after some time...
    Seasonic also only provide 3 years of limited warrenty here like many other places, while a brand like Cooler master give 5 years, just like Corsair.

    Just makes you wonder.
    I think i'll go with an Enermax modu+ or pro+ this time..still not sure though.
    Reply
  • sprockkets - Sunday, January 04, 2009 - link

    Hmmm... your first link is to the german side of Tom's, and while we can make out perhaps the SeaSonic PS failed, searching the English side for the same article does not yield a proper counterpart, and the article that comes close to it, is not even finished and broken. What does that say about Tom's Hardware?

    Your second link does show some iffy parts, but overall, they recommend the power supply and dismiss the transient load results as not important. Btw, you think a computer motherboard is going to fry because the 12v line varies 0.2v? 4.92 volts is bad? Those voltages can vary 10% on the 12v line and 5% on the others and meet Intel's ATX spec. Welcome to the real world of imperfection.

    Three years vs 5 years, so what? My FSP power supply in the thrid computer I've built in 2001 still runs fine, and it came with only a 1 year distributor warranty. In fact, only 1 out of 10+ FSP power supplies died, and it probably died because the power strip blew.
    Reply
  • Martin84a - Monday, January 05, 2009 - link

    I think it says the german and the english site, run things pretty seperately.

    250watt, 16a on the 12v rail that results in a ~300mV ripple. That's a lot. We are not even talking 80% or 100% of its max rated capacity.

    I know that are "allowed" to vary 10% on the 12V rail, but i still think it is a testament to the quality of the PSU. Look at the competetion next to it, nearly straight line.

    I recently had an Antec Truepower 480 watt dying on me. I had it for a little more than 3-4 years. Prior to buying it i did a tons of research. Anandtech also gave it a very good score. Today it is clear that a lot of these has failed, because of some very shitty caps being used. You don't see this in most of the reviews, because they only test if for a day or a week or so. Warranty is a big deal for a lot of people, including myself. I won't buy western digital or maxtor anymore, because i have had too many dying on me, granted they have been running for 3-4 years. Seagate give a 5 year warranty as the only HDD manufactor, so of course i pick them.
    The same with PSU's, I still consider the Seasonic S12II a good PSU, but i would rather pick a PSU with a better warranty.
    Reply
  • kenyee - Friday, January 02, 2009 - link

    They just don't make them as well as they used to. I bought one of the expensive ones a year ago because it was the quietest around at the time...croaked after a month. Didn't bother sending it back under warranty because I didn't think it was worth it. It also doesn't support older 2.0 systems which I did send it back to them for but they could have told me via email :-P
    Reply
  • Finraziel - Thursday, January 01, 2009 - link

    Although I understand what you're saying about the 10% load and how no PSU comes close to 80% efficiency there, would it be possible to still post the actual results of the different psus rather than only the rather blunt comparison in the graph? Many systems may not go far below 20% load with these psus, but if you're intent on setting up a very efficient pc it's not that hard to approach or even duck onder 30 watt idle. So in those cases, even though it's not close to 80, it'd still make a big difference wether the efficiency is 50, 60 or 70%... Reply
  • Christoph Katzer - Thursday, January 01, 2009 - link

    Did a small update to the efficiency page. Thanks for the suggestion. Reply
  • sonci - Thursday, January 01, 2009 - link

    So, best PSU regarding efficiency should be ENERMAX Liberty ECO, cause for 24/7 use, you hardly need 50% load..? Reply
  • Christoph Katzer - Thursday, January 01, 2009 - link

    Depends on your system power requirements. There is a difference if you just need 50 watts or 150. Check the power consumption first, then check in which state you are running most of the time and then check which PSU would fit best. From some of the tested units we have separated reviews already where you can check the exact efficiency at a specific load. Reply
  • JonnyDough - Wednesday, December 31, 2008 - link

    You really DO listen to your readers! KUDOS. You're one of the few companies that does. Reply
  • sonci - Wednesday, December 31, 2008 - link

    AnandTech
    Thankyou for your honest work..
    Happy new year!!
    Reply
  • JeBarr - Wednesday, December 31, 2008 - link

    I can vouch for the S12II 330W and it's ability to run an hd 4850. Originally I had installed the FSP group ZEN 400W fanless, but due to orientation of PSU inside of htpc case did not allow the heatsink to function as designed, so I gave the seasonic a try and have no regrets. It also helps that the rest of my components are low-power, of course. Reply
  • marc1000 - Wednesday, December 31, 2008 - link

    why does akasa products never show on Anandtech?? well, I have one Akasa AK-P300PG (or something like that), it's a 300W unit. I used to power a Pentium-D 945 with a radeon 3850 (now i have a C2D e7200) and it works just fine. silent and stable power. It's a great product that could be included in future reviews.

    by the way: HAPPY NEW YEAR!!! :D
    Reply
  • Christoph Katzer - Wednesday, December 31, 2008 - link

    We cannot run after every brand there is and if those companies don't come to us... there are surely many more missing but we can only test products from companies that are actually interested in us testing their stuff. We had an Akasa unit before though... Reply
  • boboko - Sunday, January 04, 2009 - link

    >"We cannot run after every brand there is and if those companies don't come to us..."

    I guess that is the problem with almost all review sites. And the worst thing is not that you skip the smaller guys, but that what you are reviewing is not off the shelf, it's sent to you buy a company that wants a good review. So even if they have rotten quality control, and half their stuff is DOA, you know the one they send you has been triple checked and fine tuned. Not your fault, but to me the reliability is MUCH more important than a few extra watts or a few less decibels, and there's just no way to get good data on that.
    Reply
  • Griswold - Wednesday, January 07, 2009 - link

    If you read the reviews here, you'd know that this assumption is false in general. AT has had junk on their bench on more than one occassion - if every supplier would do what you claim, all reviews would take place in happy bunny land where everything is dandy and no negative notion is possible. But thats not the case.

    Surely there will be those who go the extra mile to make their product look better than it is off the shelf, but you just cant hide every trace of incompetence and bad quality.

    Much like we cant expect a review site buy every piece of hardware to test it and hope they can re-sell it without a loss.
    Reply
  • marc1000 - Thursday, January 01, 2009 - link

    wow, I know it was said before, but you guys really do listen to us. that's the reason I come here everyday to know the news! keep up the good job at 2009! regards! Reply
  • C'DaleRider - Wednesday, December 31, 2008 - link

    I'm just curious why the "old" version of the Antec Earthwatts 430 was dug out and retested since Seasonic is no longer the OEM for it but now has Delta as the OEM supplier and has been for many months now.

    Seems it'd be only fitting that the "new" version would be tested instead of a version no longer being made or sold, except as NOS (new old stock).
    Reply
  • Christoph Katzer - Wednesday, December 31, 2008 - link

    If only "someone" could send it to us :] I will make sure to get new revision on time, you're totally right. Reply
  • sprockkets - Wednesday, December 31, 2008 - link

    What were those bad things happening to the SII Seasonic PS? Reply
  • JarredWalton - Wednesday, December 31, 2008 - link

    I believe Christoph is just saying that he's received an increase number of email messages from people saying that their Seasonic PSUs have failed. It's anecdotal at best, and it could just be a case of more people buying their PSUs and thus a small fraction that fails can still result in more complaints than before. Reply
  • Christoph Katzer - Wednesday, December 31, 2008 - link

    Yes ;)
    There was a revision in the beginning that had problems with certain motherboards somehow, something to do with the "power good" signal. They've upgraded the series long time ago though.
    Reply
  • Lonyo - Wednesday, December 31, 2008 - link

    I'd just ordered some new parts, including a CX400 about 30 minutes before I saw this article come up.
    Nice to see that my choice seems fairly solid.

    I'm sure this article will be relevant for other people as well.
    Reply
  • 7Enigma - Wednesday, December 31, 2008 - link

    That is a heck of a lot of work for this article and we appreciate it immensely! Between this article and the upcoming mid-range builders guide (I'm begging...please get it out asap) you have reaffirmed for me this is the #1 site.

    Thanks again.
    Reply
  • TheDoc9 - Wednesday, December 31, 2008 - link

    The breakdown of the cable connectors and the build quality descriptions were helpful. The power noise charts look useful as well. Reply
  • mino - Monday, January 12, 2009 - link

    Copy that, one of the best PSU roundups around. Reply
  • magreen - Wednesday, December 31, 2008 - link

    We definitely appreciate the roundup. It addresses our needs as consumers. I wish you'd add more info about the Antec Earthwatts 430 though... it's one of the most popular PSUs on the forums here and always shows up for cheap in the hot deals section, often bundled with an Antec case. Wish you'd give us more details on its efficiency, ripple, and your overall take. I don't think you actually said anything about its performance at all. Thanks! Reply
  • OddJensen - Monday, January 05, 2009 - link

    Isn't there a Delta made version of the 430 as well? Reply
  • Christoph Katzer - Monday, January 05, 2009 - link

    Yes which we didn't have. Reply
  • Christoph Katzer - Wednesday, December 31, 2008 - link

    http://www.anandtech.com/casecoolingpsus/showdoc.a...">http://www.anandtech.com/casecoolingpsus/showdoc.a...

    Here's the original review from a year ago. Even though I didn't mention it in the conclusion I think you have a great comparison with the respective graphics towards the end. :)
    Reply
  • donjuancarlos - Wednesday, December 31, 2008 - link

    Thanks for this article. I am one of those who does modest OCing and no SLI, and this article was pertinent for me. Reply
  • eetnoyer - Wednesday, December 31, 2008 - link

    No temperatures at load? I would think that temps at 100% load for each unit shouldn't be too much. Just as a worst-case thing. Reply

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