when you get blue screens, its usually your ram... USUALLY
but at the same time it can be anything... lol (sorry not helping)
from my experience, i would look into the ram, read up on the ram that you have and check your settings on your BIOS and see if there's anything wrong with the timing of the ram and what not.
start from there.
I hawe alredy checked the ram and there is no problem there.
But in the same time the ram i use now is temp. I am going to upgrade to 16 gbs of ram