ðiːz nˈuː mˈɑːdəlz, wɪð ɐ dˌiːdˌiːˈɑːɹ tˈuː kəntɹˈoʊlɚ, jˈuːs ɐ dˈɪfɹənt fˈɪzɪkəl sˈɑːkɪt nˈoʊn æz sˈɑːkɪt ˌeɪˈɛm tˈuː, sˌoʊ ðæt ðeɪ wɪl ˈoʊnli fˈɪt ɪn mˈʌðɚbˌoːɹdz dɪzˈaɪnd fɚðə nˈuː tˈaɪp ʌv ˌɑːɹɹˌeɪˈɛm.
These new models, with a DDR2 controller, use a different physical socket (known as Socket AM2), so that they will only fit in motherboards designed for the new type of RAM.