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[JG] XFX Core Edition 450w Review

post #1 of 10
Thread Starter 
Quote:
Today I have another one of the XFX Core Edition power supplies (aka "Pro Series" or "Pro Edition" depending on where you see it). We've already done the 650W, 750W and 850W. Now it's time for an even lower wattage unit: the 450W.
The Source

EDIT: Updated Testing Results

Spoiler warning: XFX has their first lemon. Depending on the price, I could possibly recommend this unit but it'd have to be on sale for $30 (before any MIR's or anything.)

My best guess as to why this unit has a problem is something that a JG member pointed out (and seems like the logical first choice to me) is that because the 12v rail only makes up ~75% of the units total capacity they are regulating the 5v heavier and the 12v looser.

Though the platform is a respectable one that normally does well so I'm not sure why they (Seasonic) ran into this issue.

It's something that's an "easy" fix, as they don't need to do any alterations to the design itself. They just need to change the programing of the PWM control IC.
Though this itself isn't an easy task. It just won't suck up as many resources as retooling a production line.

Edited by Tator Tot - 3/18/11 at 2:20pm
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post #2 of 10
That is a strange one for sure, this platform should perform better than it did. I'm pretty sure that my s12 performs better than this s12II in everything except efficiency.
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post #3 of 10
Wait, why didn't the KitGuru review pick up those +12v issues?
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post #4 of 10
eek a bit wobbly on 12v ;O i really like JG Psu reviews he knows what he is doing this guy
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post #5 of 10
Thread Starter 
Quote:
Originally Posted by GameBoy;12774847 
Wait, why didn't the KitGuru review pick up those +12v issues?
Load Patterns.
Jonny did KitGuru's load tests and got almost the exact same results.

Read the 550w review for a better understanding.

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=225
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post #6 of 10
Quote:
Originally Posted by Tator Tot;12781646 
Load Patterns.
Jonny did KitGuru's load tests and got almost the exact same results.

Read the 550w review for a better understanding.

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=225

Oh, right... makes sense.

Thanks.
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post #7 of 10
They still aren't changing the rating on JohnyGuru, it still sucks.. biggrin.gif
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post #8 of 10
Thread Starter 
Quote:
Originally Posted by _GTech;12787169 
They still aren't changing the rating on JohnyGuru, it still sucks.. biggrin.gif
It doesn't suck; it's just not great depending on the load pattern.
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post #9 of 10
Quote:
Originally Posted by _GTech;12787169 
They still aren't changing the rating on JohnyGuru, it still sucks.. biggrin.gif

Under the usual load conditions that modern computers have, it should still be a pretty good unit.
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post #10 of 10
i wouldn't consider this as XFX's first lemon. they had a lemon with the XFX XXX 650w. i have several corsairs and the XFX 650w. mine had the same fan rattling problem as many others also do. look at the newegg reviews for BOTH the grey fan and the green fan, they are the same unit. you will see what i am saying, there's a known problem with the 650w psu. i only paid $55 final after tax and rebate for it so i didn't drop too much coin, but in retrospect i see now why the dropped the price so low for a modular unit..
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