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Oracle® Exadata Storage Server X7-2 EF and HC Service Manual

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Updated: February 2019
 
 

Inconsistencies Between DIMM Fault Indicators and the BIOS Isolation of Faulty DIMMs

When a single DIMM is marked as failed by Oracle ILOM (for example, fault.memory.intel.dimm.training-failed is listed in the service processor Event Log), BIOS might disable the entire memory channel that contains the failed DIMM, up to two DIMMs. As a result, none of the memory installed in the disabled channel is available to the operating system. However, when the Fault Remind button is pressed, only the fault status indicator (LED) associated with the failed DIMM lights. The fault LEDs for the other DIMMs in the memory channel remain off. Therefore, you can correctly identify the failed DIMM using the lit LED.