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Faulty RAM can produce errors and it's hard to catch those, even memtest might not detect it. I'm not sure if non-faulty non-ECC RAM can spontaneously have erro
by vbezhenar 5y ago
Faulty RAM can produce errors and it's hard to catch those, even memtest might not detect it. I'm not sure if non-faulty non-ECC RAM can spontaneously have errors, but you can't be sure, cosmic rays are real, unless you've put your PC into a thick lead case, LoL.
- toast0 5y agoIn my experience with ECC RAM on couple thousand servers over a few years, we had a couple machines throw one ECC correctable error and never have an issue again. It seemed more common for a system to move from no errors to a consistent rate; some moved to one error per day, some 10/day, some to thousands per second which kills performance because of machine check exception handling. The one off errors could be cosmic rays or faulty ram or voltage droop or who knows what, the repeatable errors are probably faulty ram, replacing the ram resolved the problem.