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Re: Are the 360PE and 750 memory cards compatible?



On Tue, 20 Jan 1998, Paul Khoury wrote:
> On Tue, 20 Jan 1998 14:11:32 -0700 (MST), billy@MIX.COM wrote:
> 
> >Yes the 755 uses parity memory.  You can turn off the parity error
> >detection in the set-up (hold F1 down and boot) but I'd suggest not
> >doing this - I have had one card that had errors and I'd never have
> >know without it...
>
> That's one of the nice things about parity.  It's such a shame
> that the newer ThinkPads don't use parity, at least the
> non-EDO models. 

Actually, the really nice way to handle parity was the way some
EISA systems (remember those?) did it.  If the motherboard
detected a parity error, it would map around the bad memory.
You'd lose something like 8k, but the memory module would still
be usable.

--
John H. Kim
kim@mak.com