Have you just added this RAM since the errors began?
I ask because I had 25 (128, 64, 64) and added 768 so I had to take out the two 64's and I couldn't get it to stop giving this crash until I removed the 4th dimm stick (BX6 rev2 has huge issues with 4th dimm slot)
SOO, I figure it has to be your RAM, is it a registered stick?