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IBM System x3850 X5 (7143) compatible upgrades

These upgrades are guaranteed compatible when you order from

Notes about your system:

IBM System x3850 X5, machine type 7143, is the second generation of the x3850 X5. It is a
4U 4-socket Intel E7-based (Westmere-EX) platform with 64 DIMM sockets. It can be scaled
up to eight processor sockets depending on model and 192 DIMM sockets by connecting a
MAX5 memory expansion drawer, and a second x3850 X5 with another MAX5 memory
expansion drawer

Your IBM System x3850 X5 (7143)

system specs as shipped


  • Maximum Memory:2TB
  • Standard Memory:16GB removable
  • Slots:64
*Not to exceed manufacturer supported memory.
what does this mean?
Memory or DRAM is the "working" memory of the computer. It's used to store data for programs (sequences of instructions) on a temporary basis.


  • Storage: Serial ATA support
what does this mean?
Storage drives -- hard drives and solid state drives -- are the permanent memory for the programs and documents on your computer.

Compatible Memory

Crucial 4GB DDR3-1866 RDIMM VLP


  • DDR3 PC3-14900 • CL=13 • Dual Ranked • x8 based • Registered • ECC • DDR3-1866 • 1.5V • 512Meg x 72 •
  • upgrade for IBM System x3850 X5 (7143) system.
  • £39.59 inc. VAT*
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Crucial 16GB DDR3-1600 RDIMM


  • DDR3 PC3-12800 • CL=11 • Dual Ranked • x4 based • Registered • ECC • DDR3-1600 • 1.35V • 2048Meg x 72 •
  • upgrade for IBM System x3850 X5 (7143) system.
  • £202.79 inc. VAT*
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