My mobo(gigabyte H61m-ds2) supports 1333 mhz ram. I already have a Transcend DDR3-1333 4 GB RAM (JM1333KLN-4G) and i was thinking of getting another 4gb. I want to know if Corsair XMS3 DDR3 4 GB Desktop RAM (CMX4GX3M1A1333C9) is compatible with my old one. The corsair one describes it as single channel memory would it effect on having two rams. I want to know if both rams are compatible with each other, if there are other better options please suggest.