Guaranteed compatible upgrades for:

HP/Compaq ProBook Series Notebook 4320s


System Specifications
Maximum Memory:
  • 4 GB using a 32-bit Operating System
  • 8 GB using a 64-bit Operating System
Expansion:
  • 2 Sockets
Standard Memory:
  • 2 GB (Removable) or
  • 4 GB (Removable) or
  • 8 GB (Removable)
CPU/Chipset:
  • Intel Core i3 Intel HM57
  • Intel Core i5 Intel HM57
  • Intel Core i7 Intel HM57
Bus Architecture:
  • SSD - SATA 2.5-inch 9.5mm; USB
Mfr's System P/N's:
  • WD862EA; WD863EA; WD864EA; WD865EA; WD866EA; WD867EA; WD868EA; WD869EA; WD870EA; WD871EA; WD872EA; WD873EA; WD874EA; WD876EA; WD896EA; WD897EA; WD898EA; WD899EA; WD902EA; WD910EA; WH294UT; WH295UT; WH302UT; WH303UT; WH308UA; WJ333AA; WJ334AA; WJ335AA; WJ336AA; WJ337AA; WJ338AA; WK325EA; WK326EA; WK361EA; WK377EA; WK389EA; WK489ES; WK508EA; WK522EA; WP392PA; WP393PA; WP427PA; WQ431LA; WQ432LA; WQ444LA; WQ943PA; WQ982PA; WQ994PA; WQ995PA; WQ996PA; WS739EA; WS744EA; WS867EA; WS904EA; WS908EA; WS924ES; WS970ES; WT043ES; WT071ES; WT153EA; WT350PA; WT351PA; WT352PA; WT353PA; WT354PA; WT355PA; WT356PA; WT357PA; WT358PA; WT359PA; WT360PA; WT361PA; WT362PA; WT363PA; WT364PA; WT365PA; WT366PA; WT367PA; WT368PA; WT369PA; WT370PA; WT371PA; WT372PA; WT373PA; WT374PA; WT375PA; WT376PA; WT377PA; WT378PA; WT379PA; WT380PA; WT381PA; WT382PA; WT383PA; WT384PA; WT385PA; WT693PA; WT694PA; WT723PA; WT763PA
Upgrade Path:
  • Virtually any configuration up to 8GB can be reached using any combination of 2 and 4GB modules.
Comments:
  • MODULES MUST BE ORDERED AND INSTALLED IN PAIRS for Dual Channel mode.
  • 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