I would have to agree the BSOD (2 off) I've had in the last year were caused be dodgy nVidia betas failing to respond! Page faults are not always caused be RAM this is a preconceived misconception! Do all the usual checks try uninstalling and re-installing your VGA drivers, use something like driver sweeper in safe mode to completely remove all traces, after uninstalling them in Windows. Run Memtest to verify the RAM about 10 passes should be OK, good luck. Stop the PC from automatically resetting on a BSOD so you can have a clear look at the dumpted info and STOP error.