I was running an HX520 in my system before my current PSU and it was powering everything just fine. My overclock wasn`t quite as high, but it probably could`ve handled it as well. THAT was kinda of cutting it close. Crossfiring 5750`s would be like just having my GTX 260 in there, well maybe a bit more power consumption but not by much. Anyways nice first build zc1! Pretty sick to have that rig and an Eyefinity setup for your first build.
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