Guaranteed compatible upgrades for:

HP/Compaq Pavilion dv4 Series Notebook dv4-1621la

System Specifications
Maximum Memory:
  • 4 GB using a 32-bit Operating System
  • 8 GB using a 64-bit Operating System
  • 2 Sockets
Standard Memory:
  • 2 GB (Removable) or
  • 4 GB (Removable) or
  • 6 GB (Removable)
  • Intel Pentium Dual Core 2.1 GHz
Bus Architecture:
  • SSD - SATA 2.5-inch 9.5mm; USB
Mfr's System P/N's:
  • VP179AAR; VP179AV; VP180AAR; VP180AV; VP181AAR; VP181AV; VP188AAR; VP188AV; VP189AAR; VP189AV; VP190AAR; VP190AV; VR498AV; VU392AAR; VU392AV; VU393AAR; VU393AV; VU394AAR; VU394AV; WC232PA; WG073LA; WH825LA; WH826LA; WJ870LA; WJ871LA; WK731LA
Upgrade Path:
  • Virtually any configuration up to 8GB can be reached using any combination of 2GB and 4GB modules.
  • If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation).
  • Maximum configurations require a 64-bit operating system.
  • Systems based on Intel GL40 chipset supports up to 4GB maximum.
  • Per HP documentation, system supports DDR3-1333 (PC3-10600) and 1066 (PC3-8500) modules but memory Bus may run at 1066MHz (PC3-8500 MB/sec) depending on processor