How many amps are there per rail on this PSU?

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stabthemidget

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#1 stabthemidget
Member since 2007 • 53 Posts

sorry if this is a dumb question but i'm trying to figure this out :/

http://www.newegg.com/Product/Product.aspx?Item=N82E16817152036

i know its a dual rail, but i'm trying to see if it will run a single GTX 560 Ti

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whitey_rolls

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#2 whitey_rolls
Member since 2006 • 2547 Posts

amps? I didn't even look but it will easily run a 560gtx - probably 2 if it has the right cables.

Edit ** Ok I got unlazy it's 24 amps per rail ... you only have cables for one card but that's enough right?

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shred

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#3 shred
Member since 2003 • 268 Posts

That power supply has 24 amps on each +12v line, and the minimum requirements for a Geforce 560Ti call for at least 30 amps on the +12V line. That power supply will not be enough for the video card I'm afraid. Look for a power supply that offer at least 30 amps on the +12v lines if you plan on running with that video card.

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whitey_rolls

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#4 whitey_rolls
Member since 2006 • 2547 Posts

If it's a 30 amp requirements on the 12v rail it would be a single rail. Using 2 rails with 24 amps per rail will be more than sufficient.

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GS550L

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#5 GS550L
Member since 2011 • 923 Posts

That power supply has 24 amps on each +12v line, and the minimum requirements for a Geforce 560Ti call for at least 30 amps on the +12V line. That power supply will not be enough for the video card I'm afraid. Look for a power supply that offer at least 30 amps on the +12v lines if you plan on running with that video card.

shred

Was this 30 ampere figure given for single 12v rail power supplies, or does it apply to every 12v rail in multi-rail power supplies?

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markop2003

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#6 markop2003
Member since 2005 • 29917 Posts
21A per 12v rail by my calculation. BTW you shouldn't go by the amount listed as that's often the max output of each rail and multiple rails cannot output that amount of power simultaneously.

That power supply has 24 amps on each +12v line, and the minimum requirements for a Geforce 560Ti call for at least 30 amps on the +12V line.

shred
When calculating amps for the 12v you should add up all the amps on each +12v rail together. Also i'ld never recommend a Raidmax PSU.