IBM System x3850 X5 7143 Memory

System Info

  • Total Slots: 64
  • Min. Memory: 8GB (2 x 4GB)
  • Max. Memory: 2TB (64 x 32GB)


There are 32 DIMM slots on the system board. An optional IBM Memory Expansion Card (46M0071) can be installed for an additional 32 slots. Most models support an optional IBM MAX5 Expansion Module (88Y6529) providing an additional 32 DIMM slots for another 1TB of memory capacity (96 DIMM slots and 3TB total). The 2GB 44T1481 (DRIX1333RD/2GB) is not supported in the MAX5.

Compatible Parts


16GB (1 slot occupied)
IBM Product Number: 49Y1563
(1 x 16GB DIMM)
DDR3-1333, PC3-10600, Registered, ECC, 1.35V, 240-pin, 2 Ranks

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