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Double 12v rail PSU

Last response: in Graphics & Displays
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May 8, 2013 6:39:56 PM

I have a double 12v rail PSU (700w) with 22a on each rail, the question is, can it power up a 7870?

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a b ) Power supply
May 8, 2013 7:45:10 PM

yes i believe so, brand/model of psu pls?
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a b ) Power supply
May 8, 2013 8:04:02 PM

May I know the exact model/type of your PSU?
22A on each rails seems okay, but to make sure, let us know the exact model first... :) 
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a b ) Power supply
May 10, 2013 12:35:07 AM

Uhh, not enough info from that site...
But if it's true it has 22A on each rails (12V) then it's okay, you can run single HD7870 with that PSU.. :) 
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a b ) Power supply
May 10, 2013 4:00:59 AM

I'm not impressed, it looks like an old unit which has had some PCI-E cables tacked on.
Interrogator, can you either: Post a picture of the PSUs rating label, or detail its outputs?
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May 10, 2013 8:52:06 PM

coozie7 said:
I'm not impressed, it looks like an old unit which has had some PCI-E cables tacked on.
Interrogator, can you either: Post a picture of the PSUs rating label, or detail its outputs?



Here are they
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Best solution

a b ) Power supply
May 11, 2013 3:55:46 AM

Better ;) .
My concern was that it would have high outputs on the +5 and +3.3 volt lines, which would mark it as being a old design with, as I said, PCI-E cables just tacked on.
I do n't think it is in the same league as a top level part but it should do the job.
Looks like you are good to go, mate, enjoy the 7870!
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May 11, 2013 12:37:50 PM

coozie7 said:
Better ;) .
My concern was that it would have high outputs on the +5 and +3.3 volt lines, which would mark it as being a old design with, as I said, PCI-E cables just tacked on.
I do n't think it is in the same league as a top level part but it should do the job.
Looks like you are good to go, mate, enjoy the 7870!


Thanks mate!
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May 13, 2013 3:11:15 PM

coozie7 said:
Better ;) .
My concern was that it would have high outputs on the +5 and +3.3 volt lines, which would mark it as being a old design with, as I said, PCI-E cables just tacked on.
I do n't think it is in the same league as a top level part but it should do the job.
Looks like you are good to go, mate, enjoy the 7870!


Just a a last question, can I handle a bigger power hungry gfx, as the 7950 or 7970? or just the 7870?
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a b ) Power supply
May 13, 2013 9:24:45 PM

No, you'll better with a new powerful/bigger PSU, just like coozie7 said before:
"it have high outputs on the +5 and +3.3 volt lines, which would mark it as being a old design with", so you'll better upgrade it before using high end card like HD7950 or higher.. :) 
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