You misunderstood me. I am not trying to put the sticks in different colored slots. When I put one of the sticks in the A1 or A2 slots and the other one to the same colored B1 or B2, I can't get the system to post correctly. It hangs on the det dram error. The only choice for me is to put the sticks in B1 and B2 in order for the board to post with two sticks and that ends up as a single channel mode.