Models that these upgrades will work for:

HP-Compaq Pavilion dv4-1000ea notebook, HP-Compaq Pavilion dv4-1000et notebook, HP-Compaq Pavilion dv4-1001ax notebook, HP-Compaq Pavilion dv4-1001tu notebook, HP-Compaq Pavilion dv4-1001tx notebook, HP-Compaq Pavilion dv4-1002ax notebook, HP-Compaq Pavilion dv4-1002tx notebook, HP-Compaq Pavilion dv4-1003ax notebook, HP-Compaq Pavilion dv4-1003tu notebook, HP-Compaq Pavilion dv4-1003tx notebook, HP-Compaq Pavilion dv4-1004ax notebook, HP-Compaq Pavilion dv4-1004tu notebook, HP-Compaq Pavilion dv4-1004tx notebook, HP-Compaq Pavilion dv4-1005tx notebook, HP-Compaq Pavilion dv4-1006tx notebook, HP-Compaq Pavilion dv4-1007tx notebook, HP-Compaq Pavilion dv4-1008tx notebook, HP-Compaq Pavilion dv4-1009tx notebook, HP-Compaq Pavilion dv4-1010tx notebook, HP-Compaq Pavilion dv4-1011tx notebook, HP-Compaq Pavilion dv4-1012tx notebook, HP-Compaq Pavilion dv4-1013tx notebook, HP-Compaq Pavilion dv4-1014nr notebook, HP-Compaq Pavilion dv4-1014tx notebook, HP-Compaq Pavilion dv4-1015tx notebook, HP-Compaq Pavilion dv4-1016tx notebook, HP-Compaq Pavilion dv4-1017tx notebook, HP-Compaq Pavilion dv4-1018tx notebook, HP-Compaq Pavilion dv4-1019tx notebook, HP-Compaq Pavilion dv4-1020tx notebook, HP-Compaq Pavilion dv4-1020us notebook, HP-Compaq Pavilion dv4-1021tx notebook, HP-Compaq Pavilion dv4-1022tx notebook, HP-Compaq Pavilion dv4-1023tx notebook, HP-Compaq Pavilion dv4-1024tx notebook, HP-Compaq Pavilion dv4-1025tx notebook, HP-Compaq Pavilion dv4-1026tx notebook, HP-Compaq Pavilion dv4-1027tx notebook, HP-Compaq Pavilion dv4-1028tx notebook, HP-Compaq Pavilion dv4-1028us notebook, HP-Compaq Pavilion dv4-1029tx notebook, HP-Compaq Pavilion dv4-1030ee notebook, HP-Compaq Pavilion dv4-1030ei notebook, HP-Compaq Pavilion dv4-1030ej notebook, HP-Compaq Pavilion dv4-1030en notebook, HP-Compaq Pavilion dv4-1030tx notebook, HP-Compaq Pavilion dv4-1031tx notebook, HP-Compaq Pavilion dv4-1032tx notebook, HP-Compaq Pavilion dv4-1033tx notebook, HP-Compaq Pavilion dv4-1034tx notebook, HP-Compaq Pavilion dv4-1035la notebook, HP-Compaq Pavilion dv4-1035tx notebook, HP-Compaq Pavilion dv4-1036tx notebook, HP-Compaq Pavilion dv4-1037tx notebook, HP-Compaq Pavilion dv4-1038tx notebook, HP-Compaq Pavilion dv4-1039tx notebook, HP-Compaq Pavilion dv4-1040ee notebook, HP-Compaq Pavilion dv4-1040ei notebook, HP-Compaq Pavilion dv4-1040tx notebook, HP-Compaq Pavilion dv4-1041tx notebook, HP-Compaq Pavilion dv4-1042tx notebook, HP-Compaq Pavilion dv4-1043tx notebook, HP-Compaq Pavilion dv4-1044tx notebook, HP-Compaq Pavilion dv4-1045tx notebook, HP-Compaq Pavilion dv4-1046tx notebook, HP-Compaq Pavilion dv4-1047tx notebook, HP-Compaq Pavilion dv4-1048tx notebook, HP-Compaq Pavilion dv4-1049tx notebook, HP-Compaq Pavilion dv4-1050ee notebook, HP-Compaq Pavilion dv4-1050el notebook, HP-Compaq Pavilion dv4-1050ep notebook, HP-Compaq Pavilion dv4-1050er notebook, HP-Compaq Pavilion dv4-1050tx notebook, HP-Compaq Pavilion dv4-1051tx notebook, HP-Compaq Pavilion dv4-1052tx notebook, HP-Compaq Pavilion dv4-1053tx notebook, HP-Compaq Pavilion dv4-1054tx notebook, HP-Compaq Pavilion dv4-1055tx notebook, HP-Compaq Pavilion dv4-1070ee notebook, HP-Compaq Pavilion dv4-1070ef notebook, HP-Compaq Pavilion dv4-1070er notebook, HP-Compaq Pavilion dv4-1070es notebook, HP-Compaq Pavilion dv4-1080ei notebook, HP-Compaq Pavilion dv4-1080eo notebook, HP-Compaq Pavilion dv4-1080es notebook, HP-Compaq Pavilion dv4-1090eo notebook, HP-Compaq Pavilion dv4-1090es notebook, HP-Compaq Pavilion dv4-1100ea notebook, HP-Compaq Pavilion dv4-1111tx notebook, HP-Compaq Pavilion dv4-1112tx notebook, HP-Compaq Pavilion dv4-1113tx notebook, HP-Compaq Pavilion dv4-1114tx notebook, HP-Compaq Pavilion dv4-1115tx notebook, HP-Compaq Pavilion dv4-1117ca notebook, HP-Compaq Pavilion dv4-1120us notebook, HP-Compaq Pavilion dv4-1123us notebook, HP-Compaq Pavilion dv4-1125nr notebook, HP-Compaq Pavilion dv4-1145go notebook, HP-Compaq Pavilion dv4-1155se notebook, HP-Compaq Pavilion dv4-1199ea notebook, HP-Compaq Pavilion dv4t (dv4-1000) series (CTO) notebook, HP-Compaq Pavilion dv4t Special Edition series notebook