How do I get dual graphics cards to work?

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CmdrMCLinkses

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#1 CmdrMCLinkses
Member since 2007 • 778 Posts

Ok so on the back of my computer there are 4 dvi ports. I have 2 Ati hd3870. Wich dvi port should I hook it up to. The reason why I'm asking this is because Call of Duty 4 says I don't have dual graphics cards. How can I hook this up sp I can use the power of these two cards.

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darksusperia

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#2 darksusperia
Member since 2004 • 6945 Posts
umm, with the xfire connector? Id imagine ud need to connect them together much like sli no? sorry I havent played with xfire or sli.
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CmdrMCLinkses

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#3 CmdrMCLinkses
Member since 2007 • 778 Posts
hmm I think there already crossfire. The machine is already built. I just have no Idea why call of duty 4 think I have 1 graphics card?
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darksusperia

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#4 darksusperia
Member since 2004 • 6945 Posts
u sure cod4 isnt just seeing both cards running as 1?
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cole_793

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#5 cole_793
Member since 2005 • 1393 Posts
Go to the ATI control panel and make sure enable crossfire is checked
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CmdrMCLinkses

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#6 CmdrMCLinkses
Member since 2007 • 778 Posts
yes that is checked. so that means it is considered as 1 now?
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Blicen

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#7 Blicen
Member since 2003 • 1810 Posts

yes that is checked. so that means it is considered as 1 now?CmdrMCLinkses

Did you enable the dual-gpu option in CODIV?

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albi321

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#8 albi321
Member since 2007 • 1552 Posts
Did you use the bridge thingy that comes with the cards?