I just went back and reread the whole thread again just to refresh my memory and I see you placed two sticks of RAM back. I know you say they are different sticks but the reason I asked you to remove them wasn't because the sticks were faulty. This is to do with your onboard memory controller inside the actual CPU. AMD memory controllers can be a little weak which is why I asked you to remove two sticks to see if the bsod stopped and it did. Simply adding them back will also add the bsod back as well.
I checked the dump files you sent and they are exactly the same as the last posted. Try removing the two sticks again and see if the bsod stops. If it does then there is something we could try to get all four sticks running but first test by removing the two sticks.