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Motherboard Compatibility With 2 Graphics Cards

Last response: in Motherboards
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November 19, 2012 9:38:02 AM

I have an ASRock Z77 Pro3 motherboard and I have a Sapphire HD 7770 GHZ Edition Overclocked graphics card and I was wondering if I bought another of the same model of graphics card if my motherboard would be compatible with 2 of them? Tell me if you need any more information, any help would be much appreciated.
Haza1889
a b U Graphics card
a b V Motherboard
November 19, 2012 10:01:02 AM

iirc the pro3 is x16/x4. You would get better performance with something like an extreme 4 that is x8/x8. Why not sell the 7770 and get a 7870/660?
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November 19, 2012 10:03:09 AM

I would rather is possible to get another of the same one.
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November 20, 2012 3:45:07 AM

Sorry I don't really see how that relates to what I'm asking?
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November 20, 2012 4:44:34 AM

Why does it depend on the PSU?
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a b U Graphics card
a c 558 V Motherboard
November 20, 2012 10:07:36 AM

For Crossfre you'll need a 700 - 800W PSU with 2 PCIe power connectors. AMD recommends minimum 600W.
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November 21, 2012 3:36:45 AM

Well I have a Corsair TX-750 V2 750W Enthusiast Series Power Supply. So that's fine... I am just wondering if it would work and if so what performance increase (if any) would I get?
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