OK, so last night I brought up precision. Made sure the priority was set to 80 degrees, that's well within EVGAs stated heat threshold.
Launched the batch file and watched it mine whle having precision right next to it to watch the temps. Precision got to about 61 degree's before system crashed to purple. Tried 4 times, system is still down.....grrrrr
Is you card plugged into the mobo or do you use risers ?
(I don't know much about purple crash... but bad riser will make your system crashes for sure...)
What are you mining by the way ?
on the .bat file I'm just mining X11.