new FSP Green Power with 85% efficiency
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new FSP Green Power with 85% efficiency
I found a new version of FSP on their webpage. High efficiency with low noise sounds good, and the FSP brand also means availability+good price in Europe unlike Seasonic.
FSP Green Power:
• High Efficiency exceeds 85% (at full load)
• Low power consumption on standby (<1W)
• Under 30dBA Low Noise Design
• Active PFC Circuit
• PCI Express Connector for graphic cards
link to the webpage:
http://www.fsp-group.com/retail_product/greenpower.asp
Anybody tried this PSU or have any information about it?
FSP Green Power:
• High Efficiency exceeds 85% (at full load)
• Low power consumption on standby (<1W)
• Under 30dBA Low Noise Design
• Active PFC Circuit
• PCI Express Connector for graphic cards
link to the webpage:
http://www.fsp-group.com/retail_product/greenpower.asp
Anybody tried this PSU or have any information about it?
I assume that if a Nexus gives you 16-19dBA it means the minimum noise at power supply idle state with maximum 60W DC power load.Mats wrote:They are even giving a more realistic number for noise, under 30 dBA, Well we'll see about that...
Funny that it's the highest one I ever seen on low noise PSU's and still (or because of that) I believe it the most.
This 30dBA maybe means maximum noise at full load.
If you read for exampel the review on nexus 4090 you'll see that the best it will do noicewise is 21dbA at those loads you specified and it will run louder than 30dbA at powerdraws of 200W.Tamas wrote: I assume that if a Nexus gives you 16-19dBA it means the minimum noise at power supply idle state with maximum 60W DC power load.
This 30dBA maybe means maximum noise at full load.
So if 30dbA is the noice at maximum att full load it is a rather powerfull statement. If it is as Mats believed a measurement of the noice at the lower range of the powerspectrum it is a very honest rating. I have not checked every PSU-review, but <30dbA is not very bad (okey, it exceeds SPCR standards, but at least it's honest), as measured by MikeC.
-It's difficult to compare noise measurements while the enviroments, distances are different. It's just informative. 30dBA at FSP or 19dBA at Nexus not equal with an SPCR 19-30 dBA data.Tobias wrote:If you read for exampel the review on nexus 4090 you'll see that the best it will do noicewise is 21dbA at those loads you specified and it will run louder than 30dbA at powerdraws of 200W.Tamas wrote: I assume that if a Nexus gives you 16-19dBA it means the minimum noise at power supply idle state with maximum 60W DC power load.
This 30dBA maybe means maximum noise at full load.
So if 30dbA is the noice at maximum att full load it is a rather powerfull statement. If it is as Mats believed a measurement of the noice at the lower range of the powerspectrum it is a very honest rating. I have not checked every PSU-review, but <30dbA is not very bad (okey, it exceeds SPCR standards, but at least it's honest), as measured by MikeC.
-It's hard to measure under 21dBA if the conditions are not enough good. A quiet not silent room also have a noise floor, and this make influence on the final results.
So we can only compare exact noise measurements when SPCR review this PSU with the same conditions what they used at Nexus/Seasonic etc..
Last edited by Tamas on Fri Feb 18, 2005 1:59 am, edited 1 time in total.
Ask fspgroupusa
Take a look at this: Zens (Fanless) 87%
EDIT: Calmer --> Zens (I dunno where I got "Calmer" from...)
Take a look at this: Zens (Fanless) 87%
EDIT: Calmer --> Zens (I dunno where I got "Calmer" from...)
Last edited by Trip on Fri Feb 18, 2005 8:25 pm, edited 2 times in total.
One thing is sure high efficiency is a key feature to make a quiet PSU, because power supplies adjust fan voltages/RPMs as the temperature changes. High efficiency reduces heat produced in the PSU.....
If that 85% efficiency is true at maximum load it's possible to make a very quiet PSU.
Just a short calculation:
Nexus NX-4090 at 300W DC power has 75% efficiency draws 399W AC power -> produces approximately 99W heat with 38dBA cooling.
(assume FSP Green Power efficiency is not constant at the full power range, 85% only available at 400W)
FSP Green Power at 300W DC power has approx. 83% efficiency draws 365W AC power -> produces approx. 65W heat with ???dBA cooling.
If we convert 65W to a Nexus fan controller, noise would be around 32dBA.
If that 85% efficiency is true at maximum load it's possible to make a very quiet PSU.
Just a short calculation:
Nexus NX-4090 at 300W DC power has 75% efficiency draws 399W AC power -> produces approximately 99W heat with 38dBA cooling.
(assume FSP Green Power efficiency is not constant at the full power range, 85% only available at 400W)
FSP Green Power at 300W DC power has approx. 83% efficiency draws 365W AC power -> produces approx. 65W heat with ???dBA cooling.
If we convert 65W to a Nexus fan controller, noise would be around 32dBA.
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I noticed these on the site a few weeks ago, it certainly makes an interesting start for a quiet PSU.
'Green' is the theme at the moment for me, what with my dissertation / thesis being titled.
How are computers impacting on the environment from their creation to their obsolescence?
After my inital proposal it becomes clear that the biggest costs are manufacturing.
A 17" CRT monitor uses enough raw materials in weight as that of a small car!
'Green' is the theme at the moment for me, what with my dissertation / thesis being titled.
How are computers impacting on the environment from their creation to their obsolescence?
After my inital proposal it becomes clear that the biggest costs are manufacturing.
A 17" CRT monitor uses enough raw materials in weight as that of a small car!
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Bruce Ballslap wrote:I guess LCDs' manufacturing is totally different in this sense?
You are correct, they take alot less to make and consume around half to two-third's the power less than an equivalent CRT during there life time of use. The only bad thing about them is the mercury used in the backlight which makes recycling difficult.
Here is an article in computer weekly which evaluates a UN university report "Computers and the Environment: Understanding and Managing their Impacts"
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Hello:
I e-mailed FSP and they said that the Green Power is not available in the USA yet, but they would notify me when it is.
[email protected]
The specs do say 30dBA max, btw.
I e-mailed FSP and they said that the Green Power is not available in the USA yet, but they would notify me when it is.
[email protected]
The specs do say 30dBA max, btw.
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My contact there said a couple months ago that they did not think it would be introduced to the US or Canada right now. They're probably more concerned about delivering the >600W PSUs that powernuts are clamoring for.NeilBlanchard wrote:I e-mailed FSP and they said that the Green Power is not available in the USA yet, but they would notify me when it is.
[email protected]
The specs do say 30dBA max, btw.
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Enviroment saving -> I found this article about FSP Green Power on a Russian partner website. (It's translated to English with computer.)
New power units Fsp350-60gln, Fsp400-60gln bear name Green Power. The idea of this product lies in the fact that, anticipating the requirements of the European community on environmental protection with respect to the producers, to propose the already today finished solution. Retaining the high share of the European market for power units, FSP Group she became company- producer, that conducts the modernization of its production for the purpose of the correspondence to standards and to the world standards of environmental protection. The new power unit completely justifies its name "Green Power". Company declares, that this power unit is absolutely harmless for the environment, since only ecologically clean materials are used for the production. To the necessary minimum is brought the application of such heavy metals as cadmium (CD), lead (Pb), mercury (Hg) and chromium OF THE VI (Cr (THE VI)). Power units Green Power are characterized by ecological design; by minimum noise level and the pulsation (less than 30dBA); by low energy consumption with the high EFFICIENCY, which reach by 85% with the full load (65% for the devices of this class).
I think this is the reason why it's introduced in Europe.
New power units Fsp350-60gln, Fsp400-60gln bear name Green Power. The idea of this product lies in the fact that, anticipating the requirements of the European community on environmental protection with respect to the producers, to propose the already today finished solution. Retaining the high share of the European market for power units, FSP Group she became company- producer, that conducts the modernization of its production for the purpose of the correspondence to standards and to the world standards of environmental protection. The new power unit completely justifies its name "Green Power". Company declares, that this power unit is absolutely harmless for the environment, since only ecologically clean materials are used for the production. To the necessary minimum is brought the application of such heavy metals as cadmium (CD), lead (Pb), mercury (Hg) and chromium OF THE VI (Cr (THE VI)). Power units Green Power are characterized by ecological design; by minimum noise level and the pulsation (less than 30dBA); by low energy consumption with the high EFFICIENCY, which reach by 85% with the full load (65% for the devices of this class).
I think this is the reason why it's introduced in Europe.
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I'm gonna be a devil's advocate here and suggest that we may be disappointed if/when SPCR reviews it.
Why? I'm almost certain that 85% is achieved on 220VAC. SPCR tests on 120VAC and that PSU would certainly loose 2% just because of the voltage in North America. That mean's it likely achieves 83% efficiency @ max load.
Still likely the best out there for a fanned PSU, but not by much. Each extra % in efficiency @ 300W DC means "only" a savings of 3W AC at the plug.
Why? I'm almost certain that 85% is achieved on 220VAC. SPCR tests on 120VAC and that PSU would certainly loose 2% just because of the voltage in North America. That mean's it likely achieves 83% efficiency @ max load.
Still likely the best out there for a fanned PSU, but not by much. Each extra % in efficiency @ 300W DC means "only" a savings of 3W AC at the plug.
-They said it exceeds 85% (at full load).powergyoza wrote:I'm gonna be a devil's advocate here and suggest that we may be disappointed if/when SPCR reviews it.
Why? I'm almost certain that 85% is achieved on 220VAC. SPCR tests on 120VAC and that PSU would certainly loose 2% just because of the voltage in North America. That mean's it likely achieves 83% efficiency @ max load.
Still likely the best out there for a fanned PSU, but not by much. Each extra % in efficiency @ 300W DC means "only" a savings of 3W AC at the plug.
-At 300W DC 1 percent increase in efficinecy not means 3W saving.
300W DC - 75% eff. -> approx. 400W AC power.
300W DC - 80% eff. -> approx. 375W AC power.
1 percent far not equal with 3W AC power.
And if you look at the improvement its not just a couple of watts. A 1-2 year old FSP provided just 65-70% efficiency. A fan controller is very sensitive 2-3% 5-15W additional heat produced in the PSU really does matter. This 85% leads to more quieter power supplies.
What does this mean? Normally the computer uses little power even if the computer is turned off (+5VSB rail). I haven't measured it, but it's more than 1W.Tamas wrote:Low power consumption on standby (<1W)
Or does it mean that in "standby" the PSU circuitry uses <1W to generate the necessary power for the +5VSB rail?
Cheers,
Jan
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Agreed. Most of the efficiency gains are incremental, it's true. Going from 80% up to 83% is a marginal change at <200W loads.powergyoza wrote:I'm gonna be a devil's advocate here and suggest that we may be disappointed if/when SPCR reviews it.
Why? I'm almost certain that 85% is achieved on 220VAC. SPCR tests on 120VAC and that PSU would certainly loose 2% just because of the voltage in North America. That mean's it likely achieves 83% efficiency @ max load.
Still likely the best out there for a fanned PSU, but not by much. Each extra % in efficiency @ 300W DC means "only" a savings of 3W AC at the plug.
But if you look at the big picture over a 3 year period, we've seen high perf. PSU efficiency move from ~70% to well above 80%. That is a big deal, not as much for electricity savings as for reduced heat generation inside a PC case. It is most useful to think of in revers -- 30% heat generation vs <20% heat generation! This is significant for PC silencing, without a doubt.
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I believe the average for standby is around 8w for other PSU's, i think this is on top of the +5VSB rail.Jan Kivar wrote:What does this mean? Normally the computer uses little power even if the computer is turned off (+5VSB rail). I haven't measured it, but it's more than 1W.
My meter measures 18w when my computer is shut down or in standby mode. Unless the meter isn't measuring properly?
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Give it a few weeks and i'm sure Fortron will have these to market.
Interestingly the specs on the UK site says:
• Under 25dBA low noise design
The global site says:
• Under 30dBA low noise design
I guess they thought us Brits will believe anything!
Interestingly the specs on the UK site says:
• Under 25dBA low noise design
The global site says:
• Under 30dBA low noise design
I guess they thought us Brits will believe anything!
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