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Crossfire HELP

Last response: in Graphics & Displays
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June 21, 2011 12:30:34 PM

I have 2x PCI-E 16x slots, If in have 2 cards installed, will they both be running at 16x or 8x??? if I'm completely wrong, could someone explain please.

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June 21, 2011 2:29:15 PM

i don't really understand that chart. but if i run 2 6970's in PCI-E 16x x2, will they run at 8x or 16x each?
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June 21, 2011 2:34:55 PM

It depends on what motherboard you have! X58 chipset 790FX and 890FX chipsets or an Intel board with nf200 chip x16 x16!
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June 21, 2011 2:35:54 PM

Gigabyte GA-890FXA-UD5 MB - AMD 890FX AMD SB850
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June 21, 2011 2:44:21 PM

i know there both 16x but, i was told that if i crossfire 2 card, in those slots that both cards will run at 8x, to share the load and make up the 16x.. is this correct or not?
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June 21, 2011 2:50:48 PM

Incorrect your board will do two card CF at x16 x16!
"2 x PCI Express x16 slots, running at x16 (PCIEX16_1, PCIEX16_2) (Note 1)
1 x PCI Express x16 slots, running at x8 (PCIEX8) (Note 2)
1 x PCI Express x16 slots, running at x4 (PCIEX4)

(Note 1) For optimum performance, if only one PCI Express graphics card is to be installed, be sure to install it in the PCIEX16_1 slot; if you are installing two graphics cards, it is recommended that you install them in the PCIEX16_1 and PCIEX16_2 slots."
This is one of the main reasons to buy an AMD 890FX chipset board!
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June 21, 2011 2:52:13 PM

oh ok, so mine will be running at 16x.. and will it be over kill for eyefinity?
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June 27, 2011 11:57:18 PM

Best answer selected by CulabunT.
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