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[Anandtech]Analyzing Power Use: 80 Plus Bronze vs. Platinum - Page 7

post #61 of 66
Quote:
Originally Posted by Tsumi View Post

CX430s are 80 plus certified, and are a great value for budget systems ($20 on sale). Avoiding a power supply based on 80 plus rating is just as stupid as buying based on 80 plus rating.

Chinese Samxon capacitors with some secondary Teapo/ Jin fu. ~83% peak efficiency

It also shutdown (V1).

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story3&reid=214
V2: http://www.jonnyguru.com/modules.php?name=NDReviews&file=print&reid=239
http://www.hardwaresecrets.com/article/Corsair-CX430-V2-Power-Supply-Review/1284/5
http://www.techpowerup.com/reviews/Corsair/CX430_V2/4.html
http://www.anandtech.com/show/6013/350450w-roundup-11-cheap-psus/2
http://www.bit-tech.net/hardware/2011/09/13/what-is-the-best-400-599w-psu/4

2013 bronze version http://www.hardwareluxx.de/index.php/artikel/hardware/netzteile/26304-test-corsair-cx-serie-cx430-cx500-cx600m.html?start=4

http://www.computerbase.de/artikel/netzteile/2013/test-corsair-builder-series-cx430/6/

I think Seasonic (Sanyo denki / ADDA fans) / Superflower (chinese Hong hua /zhenhua / Globe/ or whatever ball bearing) / FSP (even if they use Yate Loons / protechnic / Powerlogic etc. fans) are better OEMs than CWT.

BeQuiet fixes the fans on the FSP units so I can see why they're popular in Europe even if they aren't that cost effective in the USA.
Edited by AlphaC - 10/31/13 at 6:10pm
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post #62 of 66
Quote:
Originally Posted by Tsumi View Post

Nah, the sweet spot is 80-90% of your max projected load in a worse case scenario.

Yeah, but I was practically arguing that many people underestimate their max projected load.

e.g. they see 80% on max CPU load and GPU load and imply it is fine, nope, if you also overclock it's not fine, plus it's perfectly natural to have some irregular spikes, e.g. having full load plus the moment of re-plugging a usb router with 8 devices on it.
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post #63 of 66
Quote:
Originally Posted by fateswarm View Post

Yeah, but I was practically arguing that many people underestimate their max projected load.

e.g. they see 80% on max CPU load and GPU load and imply it is fine, nope, if you also overclock it's not fine, plus it's perfectly natural to have some irregular spikes, e.g. having full load plus the moment of re-plugging a usb router with 8 devices on it.

I tend to see far more overestimating than underestimating.

And of course the full system has to be taken into account.

However, a USB port is typically 5 watts, at most 15 watts, anything more and it requires an external power source. That is way too minor to even consider. And very rarely is an average system at full CPU + GPU load. Different types of loads also consume different amounts of power, even if the CPU/GPU is at full load. Case in point: Furmark. Furmark causes GPUs to use far more power than they would ever use while gaming. Special case scenarios like large amounts of hard drives would have need to be taken into account, but they're exactly that, special cases, not the average case.
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post #64 of 66
Quote:
Originally Posted by Tsumi View Post

I tend to see far more overestimating than underestimating.

And I see the word "overestimating" being used by some of those underestimating. e.g. people in PSU forums being contradictory to these suggestions:

http://www.realhardtechx.com/index_archivos/Page362.htm


edit: BTW, irrelevant, but check R9 290X 4x CF, it's hilarious.
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post #65 of 66
Quote:
Originally Posted by fateswarm View Post

And I see the word "overestimating" being used by some of those underestimating. e.g. people in PSU forums being contradictory to these suggestions:

http://www.realhardtechx.com/index_archivos/Page362.htm


edit: BTW, irrelevant, but check R9 290X 4x CF, it's hilarious.

And those are overestimations which do not take into account what CPU being used and how overclocked said CPU is, and do take into account people buying PSUs that don't have the full wattage available on the 12v rail and subpar designs that can't output their full rated output. In fact, I wouldn't trust anything or anyone that uses the extreme.outervision.com PSU calculator.
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post #66 of 66
Quote:
Originally Posted by Tsumi View Post

And those are overestimations which do not take into account what CPU being used and how overclocked said CPU is, and do take into account people buying PSUs that don't have the full wattage available on the 12v rail and subpar designs that can't output their full rated output. In fact, I wouldn't trust anything or anyone that uses the extreme.outervision.com PSU calculator.

..Implying people should trust those underestimating in these here forums.

Fine, don't use blunt numbers, but at least calculate it yourself as you say. In this forum 70% of the time you hear "oh, it's fine, don't hear those overestimating" in general, without numbers and calc.
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