HP Pavilion DVHP Pavilion DV6-6000 Bottom Ram Memory HDD Cover Door - 643309-001 HP Pavilion DVHP Pavilion DV6-6000 Bottom Ram Memory HDD Cover Door 643309-001 Manufacturer: HP Part Number: 643309-001 Alternate Part Number: 640444-001 MPN: HPMH-B2995032G00005