Models that these upgrades will work for:

HP-Compaq Pavilion notebook ZT1000 ic, HP-Compaq Pavilion notebook ZT1000 id, HP-Compaq Pavilion notebook zt1100 (DDR), HP-Compaq Pavilion notebook zt1155, HP-Compaq Pavilion notebook zt1172, HP-Compaq Pavilion notebook zt1175, HP-Compaq Pavilion notebook zt1182, HP-Compaq Pavilion notebook zt1185, HP-Compaq Pavilion notebook zt1192, HP-Compaq Pavilion notebook zt1195, HP-Compaq Pavilion notebook zt1200 (DDR), HP-Compaq Pavilion notebook zt1233, HP-Compaq Pavilion notebook zt1243, HP-Compaq Pavilion notebook zt1260, HP-Compaq Pavilion notebook zt1261, HP-Compaq Pavilion notebook zt1270, HP-Compaq Pavilion notebook zt1271, HP-Compaq Pavilion notebook zt1290