Closed Is the Cougar SX 850 watt sufficient to power an HD 6850? Tags: Cougar Power Supplies Graphics Cards Power HD Components Last response: July 28, 2011 6:13 PM in Components Share EZ Ki11 July 28, 2011 2:37:40 AM I know the power supply is 850 watts, but it has 4 12v rails, 1:22a 2:22a 3:24a and 4:24a. I was not sure how this would affect powering the graphics card. Also, how would i go about arranging where i power what from (regarding the rails) More about : cougar 850 watt sufficient power 6850 mosox a b ) Power supply a b U Graphics card July 28, 2011 8:41:49 AM A good 650W PSU can power two of those. Score 0 Best solution Silvune a c 87 ) Power supply July 28, 2011 10:34:23 AM Just use one of the hardwired PCIe power cables coming out of the unit. You won't have to worry about balancing the 12V loads with this unit. Share Can't find your answer ? Ask ! Get the answer EZ Ki11 July 28, 2011 12:46:39 PM Best answer selected by EZ Ki11. Score 0 Mousemonkey a b ) Power supply a c 273 U Graphics card July 28, 2011 6:13:56 PM This topic has been closed by Mousemonkey Score 0 Can't find your answer ? Ask ! Publish Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !