It's hard for me to comment on your results as I know too little about your testing method. I'm not allowed to give our numbers to the public but there's a few

It's hard for me to comment on your results as I know too little about your testing method. I'm not allowed to give our numbers to the public but there's a few articles and blog posts about the probabilities. The general observation is: "A system on Earth, at sea level, with 4 GB of RAM has a 96% percent chance of having a bit error in three days without ECC RAM. With ECC RAM, that goes down to 1.67e-10 or about one chance in six billions" https://community.hiveeyes.org/t/soft-errors-caused-by-single-event-upsets-seus/1891 https://community.hiveeyes.org/t/soft-errors-caused-by-singl...