Hi there,Ace meimei has few n00b questions about AMD wanan ask sifu sifu guru guru here

1:What is AM3? It using DDR3 or DDR2?
2: M2 and M2+ got any difference? Can M2+ processor run with M2 mobo? Can M2 processor run with M2+ mobo?
3: M3 mobo can run M2+ and M2 processor or not? M3 can run with M2+ and M2 supported mobo?
4: By looking at the back of the processor,how to differenciate M2,M2+ and M3?

Thanks guys for the time,really appreciate