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Pastimes : Dream Machine ( Build your own PC )

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To: AreWeThereYet who wrote (4102)12/10/1998 8:48:00 PM
From: Sean W. Smith  Read Replies (1) of 14778
 
Andy,

The ECC is block error correction. Don't think of it as a bit for every byte as with parity. Think of it as 8 Bits for 64 Bits. This block code can correct 1 bit error and detect 1-4 Bit errors. The bits don't have to be byte addressable as the code is computed for the entire double-word (64 bits).

I can't guarantee thats how intel does it but the algorithm is common and we use in our products on 64 bit memory interfaces.

Here some general info....

asti.dost.gov.ph

I have a reference to the actual circuitry at work but not handy.

Sean
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