well you bought a new set of ram just to verify it wasnt the ram so im going to say its the board only because you say the board will not let you run Dual channel without issues.
exchange the board & find out. atleast you know if it still fails then it wasnt the board or memory. Im going to say its the board tho
exchange the board & find out. atleast you know if it still fails then it wasnt the board or memory. Im going to say its the board tho