Guaranteed compatible upgrades for:

HP/Compaq 600 Series Notebook 620

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 Core 2 Duo 2.1 GHz Intel GL40
Bus Architecture:
  • SSD - SATA 2.5-inch 9.5mm; USB
Mfr's System P/N's:
  • WD668EA; WD673EA; WD674EA; WD677EA; WD680EA; WK337EA; WK338EA; WK339EA; WK340EA; WK342EA; WK344EA; WK346EA; WK347EA; WK350EA; WK351EA; WK355EA; WK367EA; WK370EA; WK423EA; WK427EA; WK428EA; WK429EA; WS727EA; WS728EA; WS729EA; WS730EA; WS731EA; WS733EA; WS734EA; WS736EA; WS741EA; WS742EA; WS770EA; WS843EA; WS979ES; WT187ES; WT188ES; WT258EA
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