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Last response: in Components
September 16, 2011 7:47:22 AM

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.

More about : 6850cf

a b ) Power supply
September 16, 2011 8:58:59 AM

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.

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a c 87 ) Power supply
September 16, 2011 12:56:28 PM

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
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

Antec High Current Gamer HCG-520 80Plus Bronze $64

Seasonic S12II Bronze 520W $60

XFX Pro 550W Core Edition 80Plus Bronze $70 ($15 rebate, $6 shipping)

Antec Earthwatts Green EA-650 80Plus Bronze $70 ($20 rebate)

Rosewill Hive 550W 80Plus Bronze Modular $70
Apparently based on the same internal design as the OCZ ZS series.
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September 16, 2011 1:11:03 PM

thanks the Antec Earthwatts Green seems good I'll. go with it instead.
September 17, 2011 4:48:32 AM

Best answer selected by 9_Breaker.