ECC memory stands for Error-correcting code memory. It’s a type of computer memory that can detect and correct common data types of internal data corruption.
Why is ECC memory needed?
Electrical or magnetic interference inside of a computer can cause single bits of data to be flipped into the wrong state. Normal system memory is not equipped to correct these errors. Memory errors can lead to system failure or data corruption, so this is an important issue on mission critical servers.
ECC memory tends to be more expensive and may lower memory performance by around 2–3 percent on some systems due to the additional time needed for memory controllers to perform error checking.
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