5. Troubleshooting
Express5800/R120h-1M, R120h-2M Maintenance Guide
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Chapter 1 Maintenance
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The memory does not function correctly.
Check any server LEDs that correspond to memory slots.
Be sure the memory meets the server requirements. For details, see User’s Guide of the server.
Be sure the memory installs properly.
Update the system ROM to the latest version.
Verify that the DIMM is installed correctly according to the procedure.
Reseat the DIMM.
Replace the DIMM.
If the third-party memory is installed on the server, remove it.
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Server is out of memory
Be sure the memory meets the server requirements. For details, see User’s Guide of the server.
Be sure no operating system errors are indicated.
Update the system ROM to the latest version.
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POST error message or IML message of DIMM is displayed.
Make sure that the Advanced Memory Protection settings and DIMMs are installed properly.
Make sure that the DIMMs are supported on the server.
Be sure that the associated processor is installed for all DIMMs on the server.
Update the system ROM to the latest version.
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Server fails to recognize existing memory.
Be sure the server supports processor installed in the server.
For all DIMMs installed in the server, be sure the associated processor is installed.
Be sure the memory is configured properly.
Reseat the DIMM.
Update the system ROM to the latest version.
Replace the DIMM.
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The server does not recognize new memory installed on the server
Be sure the memory is the correct type for the server.
Be sure the memory is installed according to the server requirements. For details, see User’s Guide of
the server.
Be sure you have not exceeded the memory limits of the server or operating system. For details, see
User’s Guide of the server.
Be sure the server supports the number of processor cores. For details, see User’s Guide of the server.
Be sure no Event List error messages are displayed in the IML.
Be sure the memory is installed properly.
Be sure no conflicts are occurring with existing memory. Run the server setup utility.
If the memory is faulty, replace it.