> find 1-3 bad non-ECC DIMMs The problem of faulty memory is separate and can be addressed by memory testing (which can even be run while computers are online)

> find 1-3 bad non-ECC DIMMs The problem of faulty memory is separate and can be addressed by memory testing (which can even be run while computers are online). My understanding is that ECC's main purpose is to guard against corruption of non-faulty memory, due to ionising radiation for instance. It's rare for this to be a problem in normal scenarios (not in space or high-altitude), and use cases.