3 ms·
ECC memory controller performs memory scrubbing periodically, in the background, during which it checks parity and corrects any bitflips. Otherwise ECC would no
by Rebellos 9y ago
ECC memory controller performs memory scrubbing periodically, in the background, during which it checks parity and corrects any bitflips. Otherwise ECC would not work nearly as well as it does.
- Dylan16807 9y agoParity isn't checked during every single row refresh?
- cesarb 9y agoAFAIK, row refresh is done within each memory chip, while the ECC bits are normally on a separate chip (for instance, where a non-ECC module has 8 chips, an ECC modules has 9 chips), so ECC scrubbing has to be done in the memory controller.