500W to 550W: 12 Power Supplies Compared
by Christoph Katzer on February 20, 2009 5:00 AM EST- Posted in
- Cases/Cooling/PSUs
Comparison: Acoustic Noise
Note: The first column is 10% load, the second 20%, the third 50%, and the last column represents 100% load.
We tested all of the power supplies at various loads, as noted above. To make the chart easier to read at a glance, very low acoustic noise levels are in light green, acceptable noise levels are in darker green, and clearly audible noise levels are in red. Even the red noise levels are relatively quiet in this roundup and should not prove annoying once a power supply is installed in a computer chassis.
Most of the power supplies are nearly silent during lower loads, with more than half of the power supplies staying under 20 dB even at 50% load. BFG Technologies takes the safe route and runs the fan at higher RPMs in order to provide better cooling, and the Seasonic and Sunbeam units take a similar approach.
The Cooler Master and Tagan power supplies are the quietest options, staying below 20 dB at all loads. Whether or not that's a healthy approach to power supply design is debatable, as these power supplies do run hotter than the others. It's possible they will fail sooner rather than later, but if you plan on running at lower loads and you want a silent system, these are clearly the best options. On the other hand, we definitely wouldn't say the approach of BFG, Seasonic, and Sunbeam use is wrong; particularly at higher loads, we have no problem with increasing fan speeds to keep temperatures in check.
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just4U - Monday, February 23, 2009 - link
Excellent!! I am curious as to how those solutions compare to standalone "standouts". I think the days where we see some no name powersupply that isn't very good in systems (as a general rule) are gone. That's been replaced (in North America) now with seeing solutions by Antec, Fsp, ect as the standard. So the comparison's are of interest.vailr - Saturday, February 21, 2009 - link
Any idea when any "Gold certified" ~500W PSU's will be available (on Newegg, or another online vendor)?Such as:
Thermaltake W0338 TP-500AH3NCG 500W
Seasonic SS-550LT 550W
Channel Well PUK500V-G 500W
Discussed here:
http://forums.anandtech.com/messageview.aspx?catid...">http://forums.anandtech.com/messageview.aspx?catid...
Christoph Katzer - Saturday, February 21, 2009 - link
I think we will see first units in summer.Mastakilla - Saturday, February 21, 2009 - link
I'm looking for a cheap 450W - 550W Powersupply (cheap but still a bit decent, around 50 euro), so I was really interested in this article...Unfortunatly the only PSU in pricerange, the Artic Cooling, is unfindable in the Benelux (EU). Also the next in price (Tagan Superrock), which actually is too expensive already, is unfindable here...
so I still don't know what to get
Kiijibari - Sunday, February 22, 2009 - link
Buy an Enermax 525W, they were tested earlier here on anandtech and are very good PSU.They should be available easily in Europe :)
cheers
Kiiji
Mastakilla - Monday, February 23, 2009 - link
Thanks for the tip, but those enermaxes are again waaaaaaaay above budget (89+ euro!!)The Corsair CX400 is 43 euro
That Artic Cooling 550W is 68 euro (shipped from DE)
I'm looking for something in between... (around 50-55 euro)
like a decent 450-500W Powersupply...
MadMan007 - Wednesday, August 19, 2009 - link
Corsair VX450 or HX450 (we unfortunately do not get the HX450 in the States :( Sad because it's 80+ Bronze)Kiijibari - Monday, February 23, 2009 - link
Sounds like you are looking for a (very) good *and* cheap PSU.That is imo impossible. You either get cheap China crackers or good, expensive ones.
Do you *really* need ~500W ?
If not then try the Enermax 425W. That is my last idea, otherwise I would suggest to raise your budget :)
cheers
Kiiji
Mastakilla - Tuesday, February 24, 2009 - link
no, you're wrong...the Corsair CX400 apparently isn't that bad and is VERY cheap...
I'm willing to pay a little more for a little better, but it seems like paying a little more will only get me worse :(
Paying A LOT more does get better though, but then I'm over my budget for the pc i'm composing...
Christoph Katzer - Saturday, February 21, 2009 - link
Try Caseking.dehttp://www.caseking.de/shop/catalog/Netzteile/Arct...">http://www.caseking.de/shop/catalog/Net...0R-80Plu...