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Single rail vs dual rail PSU

Last response: in Components
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November 6, 2012 1:39:40 PM

hii,
i am planning to buy a new PSU for my system and confused whether to go for a PSU with a single rail or dual rail.
what's the difference between the two?
a b ) Power supply
November 6, 2012 1:59:34 PM

If it's a high wattage PSU it probably won't make any difference. The problem with dual rail PSUs is that you don't get to use as much of the available current. On high wattage PSUs there's enough current available that it doesn't matter. If you're like most people and are trying to use a PSU that's "just big enough" then get a single rail.
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November 6, 2012 2:05:21 PM

I've recently read a lot of the articles here on tomshardware.com on PSU's as I'm working on picking one myself. Based on what I've read like ram1009 says it doesn't matter.
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November 6, 2012 2:09:20 PM

ram1009 said:
If it's a high wattage PSU it probably won't make any difference. The problem with dual rail PSUs is that you don't get to use as much of the available current. On high wattage PSUs there's enough current available that it doesn't matter. If you're like most people and are trying to use a PSU that's "just big enough" then get a single rail.


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