Guaranteed compatible upgrades for:

HP/Compaq Business Notebook nx9420

System Specifications
Maximum Memory:
  • 4GB
  • 2 Sockets
Standard Memory:
  • 512MB (Removable) or
  • 1GB (Removable) or
  • 2GB (Removable)
  • Intel Core Duo Intel 945PM
  • Intel Core Solo Intel 945PM
Bus Architecture:
  • PC Card; USB 2.0/3.x Type-A
Mfr's System P/N's:
  • ES439EA; ES457EA; ES457EAR; ES458EA; ES551EA; ES556EA; ES557EA; ES562EA; ES563EA; EV266AA; EV267AA; EV268AA; EV269AA; RM803PA
Upgrade Path:
  • Virtually any configuration up to 4GB can be reached using any combination of 1 and 2GB modules.