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[Solved] HD 5850 crossfire

Forum Graphic & Displays : ATI - [Solved] HD 5850 crossfire

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Best answer from hunter315.

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lordofcattown   09-25-2009 at 01:36:04 AM

Hey all, i am purchasing a new computer soon and saw the new HD 5850 cards came out. My question is, if i get dual cards, crossfire, do i HAVE to have a crossfire ready motherboard?? Thanks!

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Best answer from hunter315
yes, your motherboard must be crossfire ready because it requires a bit in the chipset that splits the load between the two cards, and most boards that are not crossfire ready do not have 2 PCI-E express slots capable of running at atleast 8x/8x. To get the best out of twp 5850s in crossfire you should really have 16x/16x crossfire that is provided by x58 and 790FX chipsets.
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Bronze Graphics badge hunter315   09-25-2009 at 01:38:31 AM
Best answer

yes, your motherboard must be crossfire ready because it requires a bit in the chipset that splits the load between the two cards, and most boards that are not crossfire ready do not have 2 PCI-E express slots capable of running at atleast 8x/8x. To get the best out of twp 5850s in crossfire you should really have 16x/16x crossfire that is provided by x58 and 790FX chipsets.

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lordofcattown   09-25-2009 at 01:44:06 AM

What about hybrid crossfire? I see one that is about $120 cheaper, would that work? its 785FX

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Bronze Graphics badge hunter315   09-25-2009 at 01:57:47 AM

Hybrid crossfire is only useful with low end cards, it puts the IGP and the discrete card in crossfire to help boost the power of lower end cards, it will not support 2 discrete cards in crossfire.

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