intel processor socket chart

Intel socket names         processor                      memory support
LGA1366 or socket B       Core i7                         works with DDR3

LGA771  or socket J         Core 2 Extreme             works with DDR2

LGA775 or socket T         Core 2 Extreme              works with DDR3   
                                         Core 2 Quad                       and DDR2
                                        Core 2 Duo
                                         Pentium Duel-core
                                        Pentium Extreme Edition
                                        Pentium D
                                       Pentium
                                       Pentium 4
                                      Celeron Processors

Socket 478                     Pentium 4

Socket 423                     Pentium 4