ECC Corrects 1 bit errors and detects 2 bit errors. It does not handle all hardware failures however. An actual bad chip may fall into a different category, I

ECC Corrects 1 bit errors and detects 2 bit errors. It does not handle all hardware failures however. An actual bad chip may fall into a different category, I think that's when technologies like Chipkill[0] might come into play. [0] - https://en.wikipedia.org/wiki/Chipkill https://en.wikipedia.org/wiki/Chipkill