The specs claim "ECC" [0], but give no further details. ejolson on the Raspberry Pi forums [1] thinks it is on-die ECC, not traditional ECC, which would mean transfers between the RAM and the memory controller are not protected and there are no means of monitoring errors or triggering a kernel panic if there's an uncorrectable error. Some discussion on Reddit [2] also suggests it's on-die ECC. If this is true, it's better than nothing but still not a replacement for a NAS with traditional ECC RAM.
In that case I incorrectly thought (like the other forum posters) it was like DDR5 on-die ECC. What you describe is better than DD5 on-die ECC. Is this error reporting supported by Linux? Is there some way I can do fault injection (e.g. undervolting the RAM) to check it's working?
