Guaranteed compatible upgrades for:

MSI MS Series Motherboard MS-91A3 (BTO)


System Specifications
Maximum Memory:
  • 48 GB ECC UDIMMs
  • 96 GB RDIMMs
Expansion:
  • 6 Sockets (2 Banks of 3) Per Each Processor 12 Sockets Total
Standard Memory:
  • 0 MB (Removable)
CPU/Chipset:
  • Intel Xeon Intel 5520
Bus Architecture:
  • PCI; PCI Express; SSD - SATA 2.5-inch 9.5mm; USB
Upgrade Path:
  • Reg ECC RDIMMs:
Comments:
  • Due to chipset limitations, DDR3 Quad Rank memory will operate at 1066MHz in the first Triple Channel bank.
  • Adding Quad Rank modules in the second Triple Channel bank will operate at 800MHz.
  • The third memory bank if present must be unpopulated.
  • DDR3-1333 modules automatically clock down to 1066MHz and 800MHz depending on which Intel Xeon model is used and the number of modules installed.
  • This system supports either Registered ECC or Unbuffered ECC memory.
  • Mixing Registered ECC and Unbuffered ECC modules is not supported within this system