Guaranteed compatible upgrades for:

HP/Compaq ProBook Series Notebook 6540b

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 i7 Intel HM57
  • Intel Core i5 Intel HM57
  • Intel Core i3 Intel HM57
Bus Architecture:
  • SSD - SATA 2.5-inch 9.5mm; USB
Mfr's System P/N's:
  • FN080UT; FN081UA; FN086UT; NF162AV; NT875AV; NY344AV; NY345AV; NY347AV; NY348AV; WD074AA; WD075AA; WD076AA; WD077AA; WD078AA; WD079AA; WD683EA; WD683ET; WD685EA; WD685ET; WD686EA; WD687EA; WD688EA; WD688ET; WD689EA; WD689ET; WD690EA; WD690ET; WD691EA; WD691ET; WD692EA; WD692ET; WD693EA; WD694EA; WD694ET; WD695EA; WD695ET; WH431PA; WH432PA; WH433PA; WH434PA; WH464PA; WH466PA; WJ575PA; WJ580PA; WJ581PA; WJ582PA; WJ583PA; WJ584PA; WJ585PA; WJ621PA; WJ658PA; WJ659PA; WJ660PA; WK253ET; WK254ET; WK447ES; WK821LA; WL587PA; WL621PA; WL622PA; WL629PA; WL632PA
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