The socket AM2 works with single, dual, triple and quad-core desktop processors with frequencies up to 3.2 GHz. The socket supports dual-channel DDR2 SDRAM memory controller.
Socket AM2 cpus supported >> 1800 MHz - 3200 MHz 3400+ - 6400+
Athlon 64 X2
» K8 microarchitecture
» 0.065 and 0.09 micron
» Desktop CPU
» Dual core
» Up to 3.2 GHz
» Up to 2 MB L2 cache
» 64-bit
» SSE2, SSE3
» Virtualization
These are the sockets the AMD Athlon 64 X2 4800+ can be used in and they are only DDR2.
Socket 939 << Actually this is a DDR memory type board and not even DDR2 and certainly not DDR3.
Socket AM2
Socket S1 (S1g1)