Is registered ram the same as ECC ram?

Question

Registered (often referred to as "buffered") memory uses a technology that is often paired with, but not directly related to, ECC RAM. Registered memory has a "register" that resides between the RAM and the system's memory controller which lessens the load that is placed on the memory controller itself. This allows for more memory modules to be used at one time than would otherwise be possible.

That doesnt tell me if they're both achieving the same thing

Answer 1

No.

ECC Ram has extra memory modules in it configured to provide error correction for single bit flips, and notify against more then 2 bit flips. This makes it more reliable and more expensive then normal memory. (Bit flips can indicate faulty memory, but can also very occasionally be due to cosmic radiation)

Registered memory is a mechanism for optimizing memory transfer to the computer by adding additional circuitry