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Are Xeon and Opteron CPU Caches protected with ECC also  ?

Question asked by waltersulivan on Mar 22, 2017
Latest reply on Feb 22, 2018 by admmedlifer


I wonder if there is any protection on CPUs rather than only Memory ECC .

ECC is to ensure stability and no error while compute/working 24/7


and if Memory is ECC protected , but CPU is not , might there be any errors on CPU side ?

or CPU doesn't need any ECC ?