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    Does anyone know how to enable crossfire without a bridge?

    Discussion in 'Gaming (Software and Graphics Cards)' started by moral hazard, Jul 6, 2012.

  1. moral hazard

    moral hazard Notebook Nobel Laureate

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    I've just recieved a second 4870m mxm card today.

    It's an alienware slave card, 1GB vram.

    My main card is an ASUS 4870m mxm card with 512MB vram.

    Catalyst control center will not let me enable crossfire. It's saying that both bridge interconnects must be attached. This is impossible because my 2 different cards have different connectors.

    So I either have to sell one card and buy a new one that matches. Or somehow mod the driver to think that the bridge is there (if this is possible).

    Is there any way to do this sort of thing?
    I would much prefer just working something out rather than selling my GPU.

    BTW if anyone has a good vbios for an alienware 4870m slave or master (mxm 2.1) I would really like a copy. This card I have seems to have a small problem with the vbios (maybe).
     
    moral hazard, Jul 6, 2012
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  2. maverick1989

    maverick1989 Notebook Deity

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    Does CCC detect both cards? If it does, I think both will be utilized when you play games or what not. You should try running a benchmark. CrossFire can be "enabled" in software as well.

    The bridge simply gives you more bandwidth. It is not a requirement for enabling CF.
     
    maverick1989, Jul 6, 2012
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  3. moral hazard

    moral hazard Notebook Nobel Laureate

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    CCC does see both cards, but the second card is disabled and CCC wont let me enable crossfire without the interconnect.

    I tried a game and only one GPU was being used (checked with GPUz opened twice).

    I've tried tricking the card to think it's a 4670 (because the 4670 doesn't require the interconnect).

    I've tried a registry mod (suggested in the M17 thread).

    I'm almost out of ideas.
     
    moral hazard, Jul 7, 2012
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