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    Undervolting 6990M CrossfireX

    Discussion in 'Alienware 17 and M17x' started by weinstein888, Dec 14, 2014.

  1. weinstein888

    weinstein888 Notebook Evangelist

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    Does anyone here have experience undervolting these cards? I've had difficulty playing games like Bioshock Infinite among other demanding titles not because the 6990M(s) can't handle it, but because the laptop will completely power off and suffer from huge FPS dips before doing so.

    Knowing that power was the problem, I downloaded Sapphire TRIXX (since this seems to be the only OC software that doesn't BSOD this computer), and disabled ULPS so I could play with the voltage. By default, both cards are at 0.96V or "960 VDDC" in TRIXX. Anyone have an idea of a starting point for a slightly lower voltage on these?
     
    weinstein888, Dec 14, 2014
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