Memory module installation

The following notes describe the types of DIMMs that the node supports and other information that you must consider when you install DIMMs.

Note

List of supported memory module is different for 1st generation (Skylake) and 2nd generation (Cascade Lake) Intel Xeon processors. Make sure to install compatible memory modules to avoid system error. For a list of supported DIMMs, see: Lenovo ServerProven website.

Memory modules must be installed in a specific order based on the memory configuration that you implement on your server.

Your server has 24 memory module slots. It supports up to 12 memory modules when one processor is installed, and up to 24 memory modules when two processors are installed. Supporting memory module type is as follows:

For Intel Xeon Skylake processors:

• Type: TruDDR4 2666, dual-rank, 16 GB/32 GB RDIMM

• Minimum: 128GB

• Maximum: 768GB

For Intel Xeon Cascade Lake processors:

• Type:

  • TruDDR4 2933, dual-rank, 16 GB/32 GB RDIMM

  • TruDDR4 Performance+ 2933, dual-rank, 16 GB/32 GB RDIMM

    Note

    Factory-installed only; no field upgrade.

• Minimum: 128GB

• Maximum: 768GB

• DRAM installation order
  Memory modules must be installed in a specific order based on the memory configuration that you implement on your node.
• Install a DIMM
  Use this information to install a DIMM.