Re: NP RAM

[Dave Sherohman <esper@sherohman.org>]

On Wed, May 09, 2001 at 06:49:23PM +0530, N. Raghavendra wrote:
> I am buying a computer in my office, and have received a quote
> from a vendor, which says that the memory is 128 MB "NP SDRAM".
> The Unix Hardware Buyer HOWTO says that ECC, error correcting
> memory, is important for reliability. Could someone tell me what
> is NP memory, and how does it relate to or compare with ECC
> memory?

I would guess that "NP" here stands for "non-parity".  Non-parity RAM makes
no attempt to detect memory errors, while ECC (Error Checking & Correcting,
IIRC) detects memory errors and can sometimes fix them.

Traditionally, PCs have used non-parity memory and "serious" computers have
used ECC, but now ECC is starting to move into the PC market as well.

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