Models that these upgrades will work for:

HP-Compaq Presario Notebook B1901JP, HP-Compaq Presario Notebook B1901TU, HP-Compaq Presario Notebook B1902JP, HP-Compaq Presario Notebook B1902TU, HP-Compaq Presario Notebook B1903JP, HP-Compaq Presario Notebook B1903TU, HP-Compaq Presario Notebook B1904TU, HP-Compaq Presario Notebook B1905TU, HP-Compaq Presario Notebook B1906TU, HP-Compaq Presario Notebook B1907TU, HP-Compaq Presario Notebook B1908TU, HP-Compaq Presario Notebook B1909TU, HP-Compaq Presario Notebook B1910TU, HP-Compaq Presario Notebook B1911TU, HP-Compaq Presario Notebook B1912TU, HP-Compaq Presario Notebook B1913TU, HP-Compaq Presario Notebook B1914TU, HP-Compaq Presario Notebook B1915TU, HP-Compaq Presario Notebook B1916TU, HP-Compaq Presario Notebook B1917TU, HP-Compaq Presario Notebook B1918TU, HP-Compaq Presario Notebook B1919TU, HP-Compaq Presario Notebook B1920TU, HP-Compaq Presario Notebook B1921TU, HP-Compaq Presario Notebook B1922TU, HP-Compaq Presario Notebook B1923TU, HP-Compaq Presario Notebook B1924TU, HP-Compaq Presario Notebook B1925TU, HP-Compaq Presario Notebook B1926TU, HP-Compaq Presario Notebook B1927TU, HP-Compaq Presario Notebook B1928TU, HP-Compaq Presario Notebook B1931TU, HP-Compaq Presario Notebook B1933TU, HP-Compaq Presario Notebook B1950TU, HP-Compaq Presario Notebook B1951TU, HP-Compaq Presario Notebook B1952TU, HP-Compaq Presario Notebook B1953TU, HP-Compaq Presario Notebook B1954TU, HP-Compaq Presario Notebook B1955TU, HP-Compaq Presario Notebook B1956TU, HP-Compaq Presario Notebook B1957TU, HP-Compaq Presario Notebook B1958TU, HP-Compaq Presario Notebook B1959TU, HP-Compaq Presario Notebook B1960TU, HP-Compaq Presario Notebook B1961TU, HP-Compaq Presario Notebook B1962TU, HP-Compaq Presario Notebook B1963TU, HP-Compaq Presario Notebook B1964TU, HP-Compaq Presario Notebook B1965TU, HP-Compaq Presario Notebook B1966TU, HP-Compaq Presario Notebook B1967TU, HP-Compaq Presario Notebook B1968TU, HP-Compaq Presario Notebook B1969TU, HP-Compaq Presario Notebook B1973TU