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  1. #1
    ROG Enthusiast Array
    Join Date
    Oct 2013
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    R9 280x Asus ROG Matrix Platinum & Asus Radeon R9 290X Direct CU II OC

    Hi, would like some advise, How would these run in crossfire, R9 280x Asus ROG Matrix Platinum & Asus Radeon R9 290X Direct CU II OC
    Cheers

  2. #2
    New ROGer Array
    Join Date
    Aug 2014
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    Did you ever get an answer on this?

  3. #3
    ROG Member Array
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    Aug 2014
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    You can't mix 280x and 290x in crossfire.

  4. #4
    ROG Member Array Ipswicher PC Specs
    Ipswicher PC Specs
    MotherboardGigabyte Z77X-D3H
    Processori5-3450 Ivy Bridge
    Memory (part number)32GB Ram
    Graphics Card #1Asus Radeon R9 280X DC2 3GD5 V2
    Monitor2 X asus 27"
    Storage #1Revo 3x2 256 GB
    Storage #23 x 2TB HDD
    CPU CoolerAfter Market - Double Fan
    CaseAntec 270 xl-ata
    Power SupplyThermaltake 1200
    OS win 8.1

    Join Date
    Jan 2014
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    13

    Cross fire is only able to used with chips that have the same model type, (7970 or R9280 or R9290, even the X series). You can even do this with different brands of card. The slowest card is the default, and the faster card will not help the slower card.

    Use the fastest card, or the best card for you monitors, in the number one PCI-E slot on your Mother Board.

    Only use the ports on the first card, as the second card is only an add on to the first card, via the bus.

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