I just learned that, as part of the standard, DDR5 memory has error correction built-in. However, according to this flyer from Intel, this is not the same as ECC memory:
Is DDR5 memory with built-in data checking the same as traditional ECC memory?
No. Built-in data checking is simply that – a feature that is only capable of checking and correcting a single bit of memory errors, so it doesn't provide data integrity. ECC memory finds these errors and fixes them, providing the robust protection needed for critical data.
I was under the impression that ECC memory was SECDED, meaning it too can only correct one bit. So my questions are:
- What is the difference between DDR5 memory marketed as ECC, and non-ECC DDR5 memory?
- What the hell was Intel talking about?
