Article View: comp.sys.mac
Article #4955Re: Nix on mixing memory speeds?
From: Josh Hodas
Date: Thu, 21 Sep 1989 11:58
Date: Thu, 21 Sep 1989 11:58
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1516 bytes
In article <11979@cit-vax.Caltech.Edu> mym@tybalt.caltech.edu.UUCP (Mike Meckler) writes: >I was told yesterday, much to my surprise, that one cannot mix speeds of >memory chips in one machine. I've known that I can't use slow memory in my >Mac II, but this person told me that if I took my 2 meg Mac II, with its >120 ns memory, and replaced one of the banks with 80 ns chips from, say, >Chip Merchant, then I would start to get random memory errors. "Usually >when you're doing a large compilation," he threatened. > >Is this true? No. At least not as far as I can tell, and I am running exactly that combination. I do believe that there is a restriction on mixing speeds in one grouping (ie one bank of 4 on a II, one row of 2 on a plus/se), but even this I have never heard difinitively confirmed. Josh ------------------------- Josh Hodas (hodas@eniac.seas.upenn.edu) 4223 Pine Street Philadelphia, PA 19104 (215) 222-7112 (home) (215) 898-5423 (school office)
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arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!tank!eecae!netnews.upenn.edu!eniac.seas.upenn.edu!hodasReferences:
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!tank!eecae!netnews.upenn.edu!eniac.seas.upenn.edu!hodas From: hodas@eniac.seas.upenn.edu (Josh Hodas) Newsgroups: comp.sys.mac Subject: Re: Nix on mixing memory speeds? Message-ID: <14636@netnews.upenn.edu> Date: 21 Sep 89 11:58:34 GMT References: <11979@cit-vax.Caltech.Edu> Sender: news@netnews.upenn.edu Reply-To: hodas@eniac.seas.upenn.edu.UUCP (Josh Hodas) Distribution: usa Organization: University of Pennsylvania Lines: 28