The HP/Compaq Integrity rx8640 uses memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

Need Assistance? Please call and speak with one of our expert technicians at 800-240-8577 or US 404-935-4048 to verify exact system specs before ordering.
Memory Type
Base Memory 2GB (Removable)
Upgrade Slots 16 Sockets (8 banks of 2) per HP cell board 64 Sockets with four HP Cell Boards installed
Maximum Memory 64GB per HP Cell Board 256GB with four HP Cell Boards installed
Maximum Module Size 4GB
CPU & Chipset Intel Itanium 2 HP sx2000
Bus Architecture ~
Manufacturer Part Numbers
  • AB297A
  • AB442A
  • AB443A
  • AB444A
  • AD065A

We currently do not offer any upgrades or upgrades are currently unavailable for purchase online. Please contact us to order upgrades for this device.