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Help on Power Supplies

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December 28, 2009 3:24:48 AM

I heard it is more important to have better amperage on the 12 volt rails than the amount of watts that can be produced, is this true?

Also is it better to be on 1 big rail or 4 smaller rails etc?

Like which PSU would be better?


http://www.newegg.com/Product/Product.aspx?Item=N82E168...

or

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

More about : power supplies

December 28, 2009 3:33:30 AM

The Corsair is the better/more reliable one.

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a c 144 ) Power supply
December 28, 2009 11:22:03 AM

The Corsair is [/b]much[/b] better in all respects except advertised capacity. And I doubt if the Rosewill really has 4 independent rails. Most PSU's do not.
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December 28, 2009 2:07:11 PM

Can I ask how you determined that?
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December 28, 2009 2:49:40 PM

I didnt mean just based on those 2 power supplies I meant how could I determine from the specs which is better? 1 12V rail vs 4 12V Rails etc etc
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a b ) Power supply
December 28, 2009 3:17:17 PM

there are actually a very limited amount of true multirail psu's,the single vs multiple rail argument been going for ages,most multirail psu's just have all the 12v rails connected to a single 12v point on the psu making an undercover single rail psu,as said its rare to get a true multirail psu
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December 28, 2009 5:06:46 PM

Well the Rosewill has 100 amps added up between the rails while the Corsair only has 70, so what makes th corsair better?
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a c 243 ) Power supply
December 28, 2009 5:25:31 PM

That's not how it works. Take a look at the Rosewill label, it shows 900 watts available for the 12v rails, that's 75 amps ( label says (52) go figure ).
Either way more doesn't equal better in this case, the Corsair is simply much higher in quality.

This should help you out a little
http://www.jonnyguru.com/forums/showthread.php?t=3990
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