|You should get an answer here, but it probably would have been better to post this under the Gaming forum for more gamers who are familiar with the game and SLI with your video card or similar. You probably will need an upgrade to your power supply. While 700 watts sounds like it should be enough, your power supply divides the 12 Volt power into four rails, each with only 18 Amps and that may not work out very evenly over 2 cards as well as the rest of your system. Look for a power supply with ALL of it's 12 Volt power on a single rail so you can use all of it and supply enough for your video cards, I would not be surprised if you actually have been starving your video card at peak loads all along.|
You have to be a little bit crazy to keep you from going insane.