The amount of system memory that is displayed is less than
the amount of physical memory installed in the system
- Make sure that:
- You have installed the correct type of memory (see Installing
a DIMM).
- Memory mirroring or memory sparring mode does not account for
the discrepancy. You can check the memory configuration in the Setup
utility (see Using the Setup utility).
- If new memory has recently been installed, make sure that no configuration
events are reported in the event log. If there are any events, resolve
them.
- If the compute node was recently installed, moved, or serviced,
make sure that the DIMMs are correctly seated in the connectors (see
Installing a DIMM).
- Make sure that all DIMMs are enabled. The compute node might have
automatically disabled a DIMM when it detected a problem, or a DIMM
might have been manually disabled (see Using the Setup utility).
- Run memory diagnostics (see IBM Dynamic System Analysis).
- Remove DIMMs until the compute node is showing the correct amount
of memory. Install one DIMM at a time until you can determine which
DIMM is not working properly. Remove that DIMM and replace it with
a good DIMM (see Removing a DIMM, and Installing a DIMM).
- If the problem remains, contact IBM Support.