The HP Pavilion Entertainment dm4 notebooks listed below are 100% compatible with this matching pair of new 4GB DDR3 memory modules. Please Note: Do not buy if your model is not listed or unless you know it will accept 4GB DDR3 laptop memory. HP/Compaq Pavilion Entertainment Notebook dm4-1001tuHP/Compaq Pavilion Entertainment Notebook dm4-1001txHP/Compaq Pavilion Entertainment Notebook dm4-1002tuHP/Compaq Pavilion Entertainment Notebook dm4-1002txHP/Compaq Pavilion Entertainment Notebook dm4-1004tuHP/Compaq Pavilion Entertainment Notebook dm4-1006tuHP/Compaq Pavilion Entertainment Notebook dm4-1008tuHP/Compaq Pavilion Entertainment Notebook dm4-1008txHP/Compaq Pavilion Entertainment Notebook dm4-1009txHP/Compaq Pavilion Entertainment Notebook dm4-1010eg HP/Compaq Pavilion Entertainment Notebook dm4-1010txHP/Compaq Pavilion Entertainment Notebook dm4-1012txHP/Compaq Pavilion Entertainment Notebook dm4-1013txHP/Compaq Pavilion Entertainment Notebook dm4-1014txHP/Compaq Pavilion Entertainment Notebook dm4-1016txHP/Compaq Pavilion Entertainment Notebook dm4-1017txHP/Compaq Pavilion Entertainment Notebook dm4-1018txHP/Compaq Pavilion Entertainment Notebook dm4-1019txHP/Compaq Pavilion Entertainment Notebook dm4-1020txHP/Compaq Pavilion Entertainment Notebook dm4-1021txHP/Compaq Pavilion Entertainment Notebook dm4-1022txHP/Compaq Pavilion Entertainment Notebook dm4-1024txHP/Compaq Pavilion Entertainment Notebook dm4-1027txHP/Compaq Pavilion Entertainment Notebook dm4-1028txHP/Compaq Pavilion Entertainment Notebook dm4-1030ezHP/Compaq Pavilion Entertainment Notebook dm4-1050caHP/Compaq Pavilion Entertainment Notebook dm4-1050eaHP/Compaq Pavilion Entertainment Notebook dm4-1050etHP/Compaq Pavilion Entertainment Notebook dm4-1050soHP/Compaq Pavilion Entertainment Notebook dm4-1050ssHP/Compaq Pavilion Entertainment Notebook dm4-1060eeHP/Compaq Pavilion Entertainment Notebook dm4-1060sfHP/Compaq Pavilion Entertainment Notebook dm4-1060ssHP/Compaq Pavilion Entertainment Notebook dm4-1060usHP/Compaq Pavilion Entertainment Notebook dm4-1062nrHP/Compaq Pavilion Entertainment Notebook dm4-1063clHP/Compaq Pavilion Entertainment Notebook dm4-1063heHP/Compaq Pavilion Entertainment Notebook dm4-1065dxHP/Compaq Pavilion Entertainment Notebook dm4-1070eeHP/Compaq Pavilion Entertainment Notebook dm4-1070efHP/Compaq Pavilion Entertainment Notebook dm4-1070sfHP/Compaq Pavilion Entertainment Notebook dm4-1080eeHP/Compaq Pavilion Entertainment Notebook dm4-1090eeHP/Compaq Pavilion Entertainment Notebook dm4-1090laHP/Compaq Pavilion Entertainment Notebook dm4-1101txHP/Compaq Pavilion Entertainment Notebook dm4-1102txHP/Compaq Pavilion Entertainment Notebook dm4-1103txHP/Compaq Pavilion Entertainment Notebook dm4-1106txHP/Compaq Pavilion Entertainment Notebook dm4-1123txHP/Compaq Pavilion Entertainment Notebook dm4-1125txHP/Compaq Pavilion Entertainment Notebook dm4-1150eaHP/Compaq Pavilion Entertainment Notebook dm4-1160usHP/Compaq Pavilion Entertainment Notebook dm4-1165dxHP/Compaq Pavilion Entertainment Notebook dm4-1190laHP/Compaq Pavilion Entertainment Notebook dm4-1201tx HP/Compaq Pavilion Entertainment Notebook dm4-1210tx HP/Compaq Pavilion Entertainment Notebook dm4-1265dxHP/Compaq Pavilion Entertainment Notebook dm4-1275caHP/Compaq Pavilion Entertainment Notebook dm4-1277sb HP/Compaq Pavilion Entertainment Notebook dm4-1280laHP/Compaq Pavilion Entertainment Notebook dm4-1380laHP/Compaq Pavilion Entertainment Notebook dm4-2050usHP/Compaq Pavilion Entertainment Notebook dm4-2055caHP/Compaq Pavilion Entertainment Notebook dm4-2070usHP/Compaq Pavilion Entertainment Notebook dm4-2090la We ship extremely fast - never later than the next business day. It will get to you quickly and is guaranteed to work flawlessly when installed. You can count on it! Our memory modules are guaranteed to work and we offer a lifetime warranty exchange against manufacturing defects. We also accept returns in original condition within 60 days of delivery for a full refund less shipping charges. Installation assistance and technical support by email or telephone is available free of charge. Please note: We cannot always ship the exact module pictured since it may not be in our inventory at the time it's sold. You may receive Samsung, Micron, Hynix, Nanya, Kdata, Kingston, Elpida or Crucial among others. If you prefer a particular brand please let us know before you buy in order to confirm availability.