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Subject: Re: what is ECC ram?

Author: Robert Hyatt

Date: 07:58:01 05/28/01

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On May 28, 2001 at 01:20:33, John Dahlem wrote:

>I see there is both ECC DDR ram and regular, but ECC costs twice as much. What
>is the difference between them?

ECC includes a hamming code for each 64 bit "word".  This code is used to
correct single-bit errors on the fly, and detect double-bit errors.  It is
most often used in servers where higher reliability is desired, at a higher
price.



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