Memory displayed is less than memory installed

The amount of system memory that is displayed is less than the amount of installed physical memory.

Troubleshooting steps

Make sure that:
- No error LEDs light up on the operator information panel.
- The DIMMs are seated correctly.
- If you changed the memory, you updated the memory configuration in the Setup utility.
Shut down the server and remove the power cords.
Reseat the DIMMs.
Reconnect the power cords, and restart the server.
Check the amount of system memory.
If the problem still exists, replace the server.