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January 03, 2012, 07:26:43 PM |
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I currently run 5x Sapphire 5830 Extreme on a Gigabyte X58A-UD3R/Xeon E5506 under Windows 7 x64, without any problems, although I run 2 smaller 80plus PSUs that total nearly 1300W (Corsair 850w for motherboard + 3 cards + Corsair 430w for 2 remaining cards, both 80plus).
The 1,000W power supply should be enough (at stock voltages), as I have another machine that runs 4 of these cards using an 850W 80plus Corsair without any problems and a small overclock (930mhz CPU/300Mhz Mem at stock voltages)....bit if you are going to overclock with voltage increases, you might want to get a 1200W for the 5 card machine.
Hope that helps.
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