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Have fun replacing all of the CPUs after a few months. There hasn't been an AMD CPU since Opteron that worked correctly on the first stepping. EPYC has a huge
by shereadsthenews 7y ago
Have fun replacing all of the CPUs after a few months. There hasn't been an AMD CPU since Opteron that worked correctly on the first stepping. EPYC has a huge number of errata ranging from bit flips to voltage dropouts to hangs and reboots, most of which remain unfixed. I mean "Load Operation May Receive Stale Data From Older Store Operation" is a pretty serious erratum. And AMD has a history of this going back to Barcelona which just flat out didn't work (workarounds for broken Barcelona B3 parts cost 50% performance or more). They don't have the resources to qualify new parts properly and they rely on customers to find all the bugs for them.