Originally Posted by wevsspot
Just because it is reading 1.38 vcore in and of itself is not causing your blue screen. In fact you voltage is probably in line with what most other FX 8120 users need to get to 4.4 - 4.5Ghz. I'd say that anywhere from 1.37 to 1.40v set is in the ball park, even with a vdroop causing actual to drop down to 1.38v or so.
First thing to do is run one of the blue screen analysis tools I pointed you to in my earlier post
Second thing to do is run Memtest 86+ overnight or 8 hours and see if it passes
If Memtest passes then you can proceed to harder core stress testing like Prime95 or OCCT
Definitely the above. In my limited experience with FX processors and my friend's FXs, this is the route to go. But a small bump in voltage first might help, my 965 BE experienced what you had, and I increased my NB voltage by a bump and it helped a bit, although it might not help you.
And as said before, vdroop is very common and you shouldn't worry.
My 965be should be at 1.525, but it vdroops down to 1.46-1.475.