just bought a second stick of 512ddr 3200 ram to run in dual with my other 512ddr 3200, i have them in the right slots , but still reads it as single channel???
Looks like you have single and sided RAM mixed in. That generally doesn't work very well. Also, from the manual you should install the RAM in slots 2/4 for the best dual channel performance (1/3 seems to automatically run at 2T).
Correct me if i'm wrong, but don't 939 motherboards need the odd numbered slots for dual-channel, not the slots directly infront of each other? Try installing the ram in slots 1 and 3, or 2 and 4.