New
#1391
Voltage...
Perhaps you need to bump up your NB voltage....
I run 8GB of mem on a tweaked E8600 with 8GB of dominator PC8500.
Oh ya.. I had to accommodate the extra memory with a lil bit more power.
Plus, I had to specify the voltage on the RAM. "Auto" didnt cut it.
If you can tweak your board, give it a shot.