Cause
• The memory modules are not installed correctly.
• An OS error has occurred.
Action
1. Be sure that the memory is seated properly.
Use care when handling DIMMs.
2. Be sure that no operating system errors are indicated.
3. Restart the compute module and check to see if the error message is still displayed.
More information
DIMM handling guidelines on page 30
Compute module fails to recognize existing memory
Symptom
The compute module does not recognize existing memory.
Cause
• The compute module does not support the processor installed in the compute module.
• The associated processor is not installed for all DIMMs installed in the compute module.
• The memory is not configured properly.
• The DIMM is degraded.
• The DIMM is not installed or seated properly.
• The DIMM is not installed.
Action
1. Be sure the compute module supports the processor installed in the compute module.
For a list of supported options, see the product storage module QuickSpecs on the Hewlett Packard
Enterprise website (http://www.hpe.com/info/qs).
2. For all DIMMs installed in the compute module, be sure that the associated processor is installed.
For more information on which DIMM slots are associated with each processor, see the compute
module user guide on the Hewlett Packard Enterprise website (http://www.hpe.com/info/synergy-
docs).
3. Be sure that the memory is configured properly.
For more information, see the compute module user guide on the Hewlett Packard Enterprise website
(http://www.hpe.com/info/synergy-docs).
4. Reseat the memory.
Use care when handling DIMMs.
5. Replace all degraded DIMMs.
42 Hardware issues