Personally used about an even split of ECC vs. non-ECC RAM over the last ~30 years and can't say I've ever encountered any problems with non-ECC RAM. If it happened it was no significance for me to notice. Professionally yeah I've run across a server here and there report bit errors but it was a four leaf clover the of thing. Not unheard of but not common. The more important thing in my experience is using high quality hardware with stable well tested drivers. That is the first practical precaution to consider. If you've got a box full of the cheapest parts you can find on Amazon you got bigger problems to consider before worrying about ECC.