Will the Athlon II x4 630 CPU work with DDR3 1866 (PC3 15000) memory at all? I am upgrading my system and cannot afford the new cpu yet, so I am buying the board (GIGABYTE|GA-970A-UD3 AM3+ ) and memory first. If it works at a reduces speed, that is fine for now. If not at all, I will need to look at other options with the memory.