Subject: Re: SIMM location
To: Bill Studenmund <wrstuden@loki.stanford.edu>
From: Colin Wood <cwood@ichips.intel.com>
List: port-mac68k
Date: 11/15/1997 12:34:30
Bill Studenmund wrote:
>
> >
> > On Fri, 14 Nov 1997, Bill Studenmund wrote:
> >
> > > In quadruplets. You need to populate each bank of 4 with the same
> > > size chip.
> >
> > Same size _and_ speed - don't mix 70ns chips with slower ones.
>
> Is it really a problem to have different speeds, as long as they are
> all fast-enough? I didn't think these macs could change the memory
> timing (so the speed couldn't get set faster than the slower chips)
> and they are on different memory banks. ??
I've successfully mixed 80ns with 70ns in the same bank. I believe it's
fine as long as you make sure that they are all fast enough. It's a bit
of a waste, tho, since you won't see that 10ns speedup if you do mix them.
Later.
--
Colin Wood cwood@ichips.intel.com
Component Design Engineer - MD6 Intel Corporation
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I speak only on my own behalf, not for my employer.