only supports DDR2 (unlike AM3 processors, which support both DDR2 & DDR3 memory).

A few motherboards were manufactured that supported both DDR2 and DDR3, however only one type could be used at a time. By using a (modified) AM3 socket they allow the insertion of any AM2, AM2+, or AM3 processor. By using specialized code they allow all these processors to work despite using the standard a northbridge and southbridge found on AM3 motherboards.