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6850cf

will this psu power 2 overclocked 6850's in cf .i wont change the voltage . i checked the reviews on newegg so dont say anaything about the brand.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817152042
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  1. A good 600-650W power supply would be OK but that one has only 23A on each of the 2 12V rails while a corsair TX650 V2 has 52A on a single rail which would be fine. Basically crossfire would be a no on that PSU it might run (it might not) but you would be taking a big risk.
  2. Best answer
    Despite all those newegg 'reviews' its quality is not known, as I doubt that any of them have put a full load on it and measured its performance. And I'm not aware of any other technical reviews of that nature.

    Intel i7-920 3.33GHz 15/12/2010
    http://www.anandtech.com/show/4061/amds-radeon-hd-6970-radeon-hd-6950/24
    6850 Crossfire Power Consumption:
    Idle = 170W, Load - Crysis = 378, Load - Furmark = 423W
    These numbers clearly show that even a good 550W PSU can easily cope with two 6850s.

    Any of these would be better as they are known to be reasonably high quality:
    Rosewill Green Series 630W 80Plus $60
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817182200

    Antec High Current Gamer HCG-520 80Plus Bronze $64
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817371047

    Seasonic S12II Bronze 520W $60
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817151094

    XFX Pro 550W Core Edition 80Plus Bronze $70 ($15 rebate, $6 shipping)
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013

    Antec Earthwatts Green EA-650 80Plus Bronze $70 ($20 rebate)
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817371044

    Rosewill Hive 550W 80Plus Bronze Modular $70
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817182131
    Apparently based on the same internal design as the OCZ ZS series.
  3. thanks the Antec Earthwatts Green seems good I'll. go with it instead.
  4. Best answer selected by 9_Breaker.
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