May I suggest you alter your power settings from Quality to "Performance" and test again?
There were other things at the very end under diagnostics that I couldn't read, not being in English, that a real expert in reading DxDiag reports, who is also fluent in your language, may need to look at.
My Granddaughter runs the game on a 760 GPU as well. I run on a Titan but, either way they are fussy with the Frostbite Engine. I got both machines running the game 100% crash free. Here are the settings. (images under Spoiler tags)
Did you mean Windows power settings or Nvidias? I tried with both and no luck.
The last errors were Windows update errors and another, "PDUWICA" that I googled and remains a mystery.
I will try out a prolonged "windowed mode" test soon to see how that works.
Gonna run memtest86 again too, just in case.
UPDATE:
No errors in memtest.
Haven't had a freeze with normal windowed mode, but haven't come across enough dialogue to confirm it works just yet.
I did notice a peculiar thing when looking at my fps while on the war table (I have confirmed FRAPS is not problem btw). The fps dips down every time I hover over one of the missions on the map, and if I rapidly hover over as many missions as I can - The fps TANKS down to 40-30. Remember, I have had numerous freezes while on the war table, so this might be related. Any thoughts? I wish someone technical at Bioware or EA or DICE would have a look at this.
