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12v rails: 1 vs. 2? - Page 2

post #11 of 67
I read a little on this debate. I have to admit I'm not a PSU guru, but I tend to base my purchase off of reviews after about 2 weeks research. I went with the Cooler Master Real Power Pro RS 850w with an 80plus power efficiency rating. It has six 12v rails and I have been very happy with it.
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post #12 of 67
Thread Starter 
So, what type of system would require multiple 12v rails?
post #13 of 67
No system requires multiple rails. A system requires a set amount of amps on the rails. If you get a dual rail power supply with 30 amp on each rail, that would work fine. But if you got a single rail with 60 amp on that rail, that would also work perfect.
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post #14 of 67
Like Max302 mentioned and I mentioned in your other thread its not as important how many rails as if the PS is quality to begin with.

Here is "ANOTHER" person reinforcing it
http://www.overclock.net/faqs/88626-...tiple-12v.html
post #15 of 67
Ok, found it. Here's the thread of me trying to give advice that's been passed down to me from some pretty well-respected members and jonnyGURU kicking my a$$:

http://www.overclock.net/power-suppl...ification.html
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post #16 of 67
Thread Starter 
Wow, this is great information so far!

Quote:
Originally Posted by tr8rjohnk View Post
Ok, found it. Here's the thread of me trying to give advice that's been passed down to me from some pretty well-respected members and jonnyGURU kicking my a$$:

http://www.overclock.net/power-suppl...ification.html
RamairMustang's question is answered here: Things to Look for When Choosing a Power Supply. I read that like a week ago. But that's a pretty good thread!!
post #17 of 67
I have a 2 rail psu with a combined power output of 29 amps... my question is will my video card have full access to the 30 amps? one rail is 14 and the other 15.
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post #18 of 67
Quote:
Originally Posted by amdcpu4life View Post
I have a 2 rail psu with a combined power output of 29 amps... my question is will my video card have full access to the 30 amps? one rail is 14 and the other 15.
So much wrong info in this thread.... Multiple rail PSU are not more efficient than single rail.

As for your question, what is the maximum current on each rail? Your video card has access to up to that amount as long as the other rail isn't maxing out the total. Besides, your video card only needs around 6-7A on the 12V.
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Once again...
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post #19 of 67
Thread Starter 
Quote:
Originally Posted by amdcpu4life View Post
I have a 2 rail psu with a combined power output of 29 amps... my question is will my video card have full access to the 30 amps? one rail is 14 and the other 15.
:

You thread hi-jacker you. I'm glad you resurrected this thread. My question still hasn't been answered.

What will it be like for me having two 12V rails instead of one? I mean, is having one instead of two easier at all?
post #20 of 67
im about to ennoy some people

checky mee outy

i love posting the same link in multiple topics, can peeps please search for threads of a simaler nature before re-posting ?? is it soooo hard???? NOT! ...
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