I've tried running my system on 1, 2 and 3 monitors as well, still the same problem. I did a full removal of all the nVidia drivers and a clean/fresh install of the newest certified drivers, 3 times. No OC'ing of any kind for the last few weeks, though it has still given me the same BSODs on both default clock and OC. It is the same when I freshly installed Windows 7 Ultimate and a fresh SSD and no other software (games, office, 3D programs, etc), just a basic OS install and all drivers for all installed hardware. (MOBO, GFX cards, etc.)
I've tested RAM, replaced with fresh RAM from the manufacturer (even told them to retest all DIMMS before giving me the new ones, no errors).
I've removed/reseated the RAM, GFX Cards, power cables.
I've never actually gotten the BSOD to crash my system when I play the only game I had installed before the reinstallation of the OS.
I was playing Skyrim, at max settings, it never crashed while playing it, it only crashes when in the Windows environment. (Accessing one of my hard drives, opening a webpage, etc) Not every time I do one of those things, just that it randomly happens just during the everyday use of the computer.