Procedure
Step 1.  If any of the modules to be installed is PMEM, make sure to complete the following procedure 
before physically installing the module: 
1.  Back up stored data in PMEM namespaces.
2.  Disable PMEM security with one of the following options: 
•  LXPM
Go to UEFI Setup ➙ System Settings ➙ Intel Optane PMEMs ➙ Security ➙ Press to 
Disable Security, and input passphrase to disable security.
•  Setup Utility
Go to System Configuration and Boot Management ➙ System Settings ➙ Intel Optane 
PMEMs ➙ Security ➙ Press to Disable Security, and input passphrase to disable 
security.
3.  Delete namespaces with command corresponding to the operating system that is installed: 
•  Linux command:
ndctl destroy-namespace all -f 
ndctl  destroy-namespace  all  -f 
•  Windows Powershell command
Get-PmemDisk | Remove-PmemDisk 
4.  Clear Platform Configuration Data (PCD) and Namespace Label Storage Area (LSA) with the 
following ipmctl command (for both Linux and Windows).
ipmctl delete -pcd 
Notes: See the following links to learn how to download and use impctl in different operating 
systems: 
•  Windows: 
https://datacentersupport.lenovo.com/us/en/videos/YTV101407
•  Linux: https://datacentersupport.lenovo.com/us/en/solutions/HT508642
5.  Reboot the system.
Step 2.  Install the memory module into the slot. 
Chapter 4. Hardware replacement procedures 183