ara_430 :
4745454b :
We do people suggest 750W+ PSUs for a system with only a GTX680 in it? This system will draw at most 350W and many of you are saying 850W PSUs. These will run at less then 50% output. Not a good thing.
I agree. RMA the corsair. Duds happen.
So what if I do overclock? Would I need a PSU with a higher wattage?
I do eventually plan on purchasing a second GTX 680 to run in SLI
For a
system using
two GeForce GTX 680 graphics cards
in 2-way SLI mode NVIDIA specifies a minimum of a 750 Watt or greater system power supply that has
a maximum combined +12 Volt continuous current rating of 53 Amps or greater and that has at least
four 6-pin PCI Express supplementary power connectors or
two 6-pin and two 8-pin PCI Express supplementary power connectors depending on brand and model of the graphics card.
Total Power Supply Wattage is NOT the crucial factor in power supply selection!!!
Total Combined Continuous Power/Current Available on the +12V Rail(s) rated @ 45°C - 50°C ambient temperature, is the most important factor.
Overclocking of the CPU and/or GPU(s) will require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.
The
Seasonic M12II-750 Bronze (SS-750AM), with its
maximum combined +12 Volt continuous current rating of 62 Amps and with
four (6+2)-pin PCI Express supplementary power connectors, is
more than sufficient to power your system configuration
with two GeForce GTX 680 graphics cards in 2-way SLI mode.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151107