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

Solution Unverified - Updated -


  • 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).


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


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))


  • Red Hat Enterprise Linux

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content