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Article #5024

Re: Nix on mixing memory speeds?

#5024
From: David M. O'Rourke
Date: Thu, 21 Sep 1989 16:31
20 lines
1634 bytes
mym@tybalt.caltech.edu.UUCP (Mike Meckler) writes:
>  [ some questions about mixing memory speeds ]

  It's my understanding that you are allowed to mix memory speeds on a bank
by bank basis.  On Mac II class machines that means you can mix in groups of
4, and on a 68000 class machine you can mix in groups of 2.  But if you do
mix banks you have to make sure that the chips are <= 120ns in a Mac II class
machine.  Don't know the minimum speed for a plus.

  Also somewhere in the back of my mind I seem to remember that even if you
put faster chips in a Mac II {IIci excluded here I believe} that it doesn't
matter since the system doesn't really take advantage of the additional speed
of the chips.  Any hardware types care to help me out here....

  Hope this helps.
-- 
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David M. O'Rourke____________________|_____________dorourke@polyslo.calpoly.edu
|  God doesn't know, he would have never designed it like that in the first   |
|_ place. ____________________________________________________________________|
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Message-ID: <1989Sep21.163103.10017@polyslo.CalPoly.EDU>
Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!gem.mps.ohio-state.edu!usc!polyslo!dorourke
References: <11979@cit-vax.Caltech.Edu>

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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!gem.mps.ohio-state.edu!usc!polyslo!dorourke
From: dorourke@polyslo.CalPoly.EDU (David M. O'Rourke)
Newsgroups: comp.sys.mac
Subject: Re: Nix on mixing memory speeds?
Message-ID: <1989Sep21.163103.10017@polyslo.CalPoly.EDU>
Date: 21 Sep 89 16:31:03 GMT
References: <11979@cit-vax.Caltech.Edu>
Reply-To: dorourke@polyslo.CalPoly.EDU (David M. O'Rourke)
Distribution: usa
Organization: Cal Poly State University -- San Luis Obispo
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