DC Persistent Memory Module (DCPMM) setup

Follow the instructions in this section to complete required setup before installing DCPMMs for the first time, determine the most suitable configuration, and install memory modules accordingly.

Complete the following steps to finish system setup to support DCPMMs, and install the memory modules according to the designated combination.

  1. Update the system firmware to the latest version that supports DCPMMs (see Update the firmware).

  2. Refer to DC Persistent Memory Module (DCPMM) installation order to determine the DCPMM combination and check the compatibility of the installed processors.

  3. Make sure to meet all the following requirements before installing DCPMMs.

    • All the DCPMMs that are installed must have the same part number.

    • All the DRAM DIMMs that are installed must have the same type, rank, and capacity with minimum capacity of 16 GB. It is recommended to use Lenovo DRAM DIMMs of the same part number.

  4. Replace the processors if necessary (see Processor and heat sink replacement).

  5. Remove all the memory modules that are installed (see Remove a memory module).

  6. Follow the slot combination in DC Persistent Memory Module (DCPMM) installation order to install all the DCPMMs and DRAM DIMMs (see Install a memory module).

  7. Check and update the DCPMM firmware to make sure it is at the latest level (see Updating firmware on managed devices with LXCA).

  • When adding more DCPMM to the existing configuration, make sure to update all the DCPMM firmware to the latest level.

  • The system currently supports only Memory Mode with DCPMM. Any operation that changes the system to other modes with DCPMM could cause data lost or damage in certain circumstances.