What up guys, few days ago my computer was running hot and realize I didn't put on the CPU cooler right, but I took it off and put on a Cooler Master Hyper 212 Air Cooler and temp is running way better. After I install the CPU cooler for some reason I turned on my computer and the LED debug code was 10 then 15 then 55. I know it had something to do with memories so I took both my memory sticks out and plug one of them in to each slot one by one and realize that my motherboard could not read my DIMM slot 1 and 2. Anyhow when I barely got done building this computer like 3 days ago all my DIMM slots was working fine, then I don't know what happen. So now I'm only running 2x4gb rams in slot 3 and 4 which is not dual channel. Can anybody help me out?