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# of 12v Rails? Amps?

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  • Power Supplies
  • Gtx
  • Components
  • Product
Last response: in Components
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February 20, 2011 9:06:35 AM

What is the difference in having a single rail vs. dual rails or more? say im getting a gtx 560 Ti (possibly 2 later for sli), and i need around 30 amps, can i add the rails together or does each rail have to have 30amps each.

Need help in understanding this area. Thanks in advance! :) 

More about : 12v rails amps

a b ) Power supply
February 20, 2011 9:33:36 AM

You will see on the power supply specs what combined amps it can output. All that really matters though is that you get a good quality unit from Antec, Corsair, SeaSonic etc. The multi rail design is supposed to give a more balanced power distribution and a more stable system at least that is the theory behind it, but like I said it matters more that you get a quality unit with the specified wattage.

For the 560 TI al you need is a good quality 500 watt unit I my self would go a bit higher like a 650 watt unit.
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a b ) Power supply
February 20, 2011 9:39:50 AM

dual or more rails is fine. If you want 2 560 ti's you really should look at a 700w psu. Forget rails and amps, just look at quality units from Antec, seasonic, corsair, silverstone and OCZ are rating up there these days also. Read some articles reviews from hardwaresecrets and johnny guru to give yourself a bit more knowledge about psu's
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February 20, 2011 9:46:27 AM

Will this Antec work with 2 of 'em in SLI?

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

Was also wondering about the MSI GTX 560 Ti and how it looks like each card needs two 6-pin powers. If I run two cards, will I need four 6-pin power connectors? Is there such a PSU or will the one above work?


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a b ) Power supply
February 20, 2011 12:04:57 PM

joshua07 said:
Will this Antec work with 2 of 'em in SLI?

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

Was also wondering about the MSI GTX 560 Ti and how it looks like each card needs two 6-pin powers. If I run two cards, will I need four 6-pin power connectors? Is there such a PSU or will the one above work?

http://img843.imageshack.us/img843/8629/msitwinfrozrgtx560ti.jpg


Yes that particular PSU has 4 PCI-e connectors, and 62 amps on the 12v rails. :bounce:  :sol: 
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a b ) Power supply
February 20, 2011 2:15:51 PM

joshua07 said:
Will this Antec work with 2 of 'em in SLI?

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

Was also wondering about the MSI GTX 560 Ti and how it looks like each card needs two 6-pin powers. If I run two cards, will I need four 6-pin power connectors? Is there such a PSU or will the one above work?

http://img843.imageshack.us/img843/8629/msitwinfrozrgtx560ti.jpg

That is the exact power supply I use it will be perfect to run two 560 ti's in SLI. The Hybrid cabling makes sense since you need the 24 pin, PCIE, and a few SATA power connections anyway the rest are modular.
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March 2, 2011 10:29:33 PM

Best answer selected by joshua07.
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