In my experience, ECC shows benefits more often when a DIMM starts to fail, not in protecting us from cosmic rays (though I don&#x27;t think I was able to make a note of the last cosmic ray that flew by me).<p>I&#x27;ve had systems limp along reliably while throwing EDAC messages every few hours. With non-ECC memory, they would have crashed and burned.<p>Of course, if you&#x27;re seeing EDAC messages, you&#x27;d be better advised to just shut down the metal and shift your workload to a different machine until you can replace the DIMMs in question.