1 ▁CPU ▁interface ▁on ▁personal ▁computers . ▁The ▁" 3 7 0 " ▁refers ▁to ▁the ▁number ▁of ▁pin ▁holes ▁in ▁the ▁socket ▁for ▁CPU ▁p ins . ▁ ▁Socket ▁ 3 7 0 ▁was ▁replaced ▁by ▁Socket ▁ 4 2 3 ▁in ▁ 2 0 0 0 . ▁ ▁Over view ▁ ▁Socket ▁ 3 7 0 ▁started ▁as ▁a ▁budget ▁orient ed ▁platform ▁for ▁ 6 6 ▁M Hz ▁F SB ▁P P GA ▁M end oc ino ▁C eler on ▁CPU s ▁in ▁late ▁ 1 9 9 8 , ▁as ▁the ▁move ▁to ▁on - die ▁L 2 ▁cache ▁removed ▁the ▁need ▁for ▁a ▁PC B ▁design ▁as ▁seen ▁on ▁S lot ▁ 1 . ▁From ▁late ▁ 1 9 9 9 ▁to ▁late ▁ 2 0 0 0 ▁it ▁was ▁Intel ' s ▁main ▁desktop ▁socket ▁for ▁ 1 0 0 / 1 3 3 ▁M Hz ▁F SB ▁Co pp erm ine ▁Pent ium ▁II Is . ▁In ▁ 2 0 0 1 , ▁the ▁T ual atin ▁Pent ium ▁III ▁process ors ▁brought ▁changes ▁to ▁the ▁infrastr ucture ▁which ▁required ▁dedicated ▁T ual atin - compatible ▁mother boards ; ▁some ▁manufact ur ers ▁would ▁indicate ▁this ▁with ▁a ▁blue ▁( inst ead ▁of ▁white ) ▁socket . ▁These ▁late ▁so ckets ▁were ▁typically ▁compatible ▁with ▁Co pp erm ine ▁process ors , ▁but ▁not ▁older ▁M end oc ino ▁C eler ons . ▁Some ▁mother boards ▁that ▁used ▁Socket ▁ 3 7 0 ▁support ▁Intel ▁process