I think you're getting the reliability even from on-die ECC if there's memory corruption. What you're not getting is warnings that the RAM is bad and that you s

I think you're getting the reliability even from on-die ECC if there's memory corruption. What you're not getting is warnings that the RAM is bad and that you should replace it. So it's just as resilient as officially ECC ram but you don't know if error correction is happening or not.