Replacing the memory modules (DIMM)
You can replace the memory modules (DIMM) on system nodes. The memory modules are electrostatic-discharge (ESD) sensitive. Take precautions to avoid damage from static electricity.
Before you begin
CAUTION:
These tasks are for replacing faulty memory modules with identical working
modules. These tasks do not describe installing memory modules from a memory upgrade feature to
increase total memory. Use the printed installation instructions that come with the memory
upgrade feature to avoid loss of data and system outages.
In particular, do not power on a node that is shown as offline in the management GUI, if you powered off the node to add memory to increase total memory. Before you increase memory, you must remove a node from the system so that it is not showing in the management GUI or in the output from the lsnode command. Do not power on a node that is still in the system and showing as offline with more memory than the node had when it powered off. Such a node can cause an immediate outage or an outage when you update the system software.