Bluescreened!

Hello,
It would seem the blue screen of death has struck again. After a month long pause i fired up Skyrim.
Upon going into the town hall in Morthal the computer crashed and will not start up in normal mode due to an "attempt to reset display driver and timeout failed" message. I can start normally up untill the windows login, after that it flashes "ye olde blue screene of deathe" (and that message, and must now start up in safe mode.

I am using 2 NVIDIA GTX 570s with SLI, tho i dont think these to be the culprits.
Im not too savvy with this, and I realy dont want to replace graphics cards for nothing so any help would be appreciated