636372-001 for HP PAVILION G4T-1000 G7 G7T-1000 NOTEBOOK R12 NOTEBOOK G4 G4-1000 G7 motherboard DA0R12MB6E0 HM55 6470/1G original 655990 001 main board ddr3 fit for hp pavilion g4 g7 g6 series notebook pc motherboard 100% working