Why system throws "CRITICAL: Main Memory - Uncorrectable Memory Error" message ?

Solution Unverified - Updated -

Issue

  • The following message is seen in /var/log/messages file:
CRITICAL: Main Memory - Uncorrectable Memory Error (Board 4, Memory Module 1) or (Board 4, Memory Module 8).

or

CRITICAL: Uncorrectable Memory Error (System Memory, Memory Module 0)

or

CRITICAL: DIMM Failure - Uncorrectable Memory Error (Processor 2, DIMM 2)
  • Server unexpectedly rebooted, IML had following entry
0042 Critical       04:13  xx/xx/xxxx 04:13   xx/xx/xxxx 0001
LOG: Uncorrectable Memory Error ((Processor 1, Memory Module 5))

Environment

  • Red Hat Enterprise Linux

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