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post #11 of 27
If you noticed, he used SLI also in 1 test. Also, current changes due to the wattage and voltage output. The system does not use enough in order to take full advantage of the PSU, its physics 11 guys.
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post #12 of 27
With 8800GTSs yes... and a CPU that heavily bottlenecks them. Again, not really a power hog!

With that kind of bottleneck, the 8800's will be twiddling their thumbs while the CPU is doing overwork.

That rig probably doesn't draw more than like 400W at full blast, even in SLI.
    
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post #13 of 27
Quote:
Originally Posted by Chozart View Post
This is the test rig:
There isn't 40A available, as proven here by this comment and the image of the label right above it. In most cases, you CANNOT add the rails up... this is a fundamental issue with multi rail PSUs.
Exactly. Another example is the HX520, if simply added up, the 12v rails would have 54A across all 3, but in reality it is 40A.
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post #14 of 27
Like I said Aura, the system needs to draw all the power first in order for the current to change (like i said, physics people, also the greatness of active PFC).

Also, yes, the system is not power hungry, but it is more power hungry then current Conroe's, as the processor is clocked at 2.6 or something ghz. And isn't the 8800 series all supposed to be currently bottlenecked or something by the CPU?

Edit: The Ultra series have good PSU's, like the Ultra X2 Connect, Xfinity and X-Pro. Take a look at this one! And a review from Jonny: Read
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post #15 of 27
Ermm... the X2 3800+ draws less power than an overclocked Core 2 Duo.

And you indeed need a more powerful CPU to not have a bottleneck with 8800GTS's. But not ever CPU will bottleneck them.

However, this rig does not draw heaps of power, and the Mushkin, like any other similarly specified PSU, should indeed handle it.

This is my main issue with this review, that he didn't really put a good load on those PSUs. And even with these loads, the voltage of the Mushkin drops to 11.84V.

And you do agree the max current of the Mushkin is 28A... since that's what is specified on the label of the PSU itself!

I do take offense by accusing me of not looking closely while you're the one that seems to miss the fact that the PSU is limited to 28A. Yeah, each rail can pump 20A, but the sum is limited to 28A (whether it be 20A-8A or 14A-14A).
    
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post #16 of 27
Quote:
Originally Posted by Aura View Post
Exactly. Another example is the HX520, if simply added up, the 12v rails would have 54A across all 3, but in reality it is 40A.
OT: so how do you figure out the real output? Is there a specific formula or do you have to test it?
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post #17 of 27
To be honest, I discovered the Corsair's actual ouput in a psu guide here on ocn (can't remember which one though).

As far as finding out yourself, I would guess that you definitely need to test it to find the output.
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post #18 of 27
It's often listed on the label of the PSU, or in the specs.

Here is the Corsair:
http://www.newegg.com/Product/ShowIm...-tick+-+Retail

See how under the three 12V rails (18A each), it stated 480W. That's the total load across the 12V rail. Since 480/12 = 40, that's 40A

Also, you often know immediately that a PSU cannot deliver the full sum of the 12V rails. Again, the Corsair: 3 x 18 = 54A. 54 x 12 = 648W. Howevr, the PSU itself is only 520W
    
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post #19 of 27
Heh, I guess it is as easy as using a formula .
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post #20 of 27
Thread Starter 
Quote:
Originally Posted by Chozart View Post
Of the ones you mentioned, only the Enermax should be considered. The others are not worth the money.

Depending on what you plan to run inside that rig, these are the best picks imo:

http://www.newegg.com/Product/Produc...82E16817139001http://www.newegg.com/Product/Produc...82E16817139001 $129.99
Yes, 520W, but 40A on the 12V rails...

In comparison, the Coolmax delivers 41.67A (and isn't half as good in quality). The Aerocool is a total joke with only 36A on the 12V rails... The Enermax is good quality, but still can't match the Corsair, since it delivers 30A on the 12V rails.

For any rig with an 8800 series card, the 520W Corsair is plenty.
Sorry for gettin back to you guys so late, just got off work.
So if i upgraded my components will this corsair still be able to run a rig with, say a Q6600 or an E6850 (july 22nd) and a p5n32 mobo (assuming they are compatible)?

what do you guys think of this psu?
http://www.newegg.com/Product/Produc...82E16817153040
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