Right, I've been asked this many times and when I look it up I get conflicting information. If you have a motherboard that supports Tri-Channel RAM (Socket 1366) and you buy 2 sets of 2 sticks of dual channel RAM and use 3 of the sticks... what happens? When I tried it a long time ago the board wasn't happy, but looking back on it the ram itself might not have liked it or been dodgy. I see a few outcomes: 1) The channels listed on the packages are just what they are intended for and will work in a tri-channel setup in tri-channel mode 2) the sticks will run in single channel mode 3) system will throw a hissy fit 4) it will be like pouring coke into a pepsi bottle and the universe will end. Anyone know for certain? What with Intel abandoning the 1366 and Tri channel RAM it's getting harder and harder to find.