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From: glenn@gla-aux.uucp (Glenn Austin)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Can you mix SIMM speeds in one CPU?
Message-ID: <0E010021.jbb2we@gla-aux.uucp>
Date: 22 May 91 00:33:21 GMT
Reply-To: glenn%gla-aux.uucp@skinner.cs.uoregon.edu
Organization: The Pit Lane
Lines: 20
X-Mailer: uAccess - Mac Release: 1.0.4a


In article <1991May16.133437.1@gsbacd.uchicago.edu>, gft_robert@gsbacd.uchicago.edu (opcode ranger) writes:
> I have a Mac II w/ 5 megs RAM: 4 1 MB SIMM's and 4 256k SIMMS.  The 1 MB SIMM's
> are 80 ns, I believe.  Can I go to 8 meg using slower SIMM's in the other 4
> sockets (that is, does it make any difference whether you use SIMM's of
> different speeds in the same machine, as long as they all meet the CPU's
> minimum requirement?)?

As long as the SIMMs in a bank are all the same speed, and all SIMMs meet
or exceed the machine's requirements, there is no problem.  However, if you
mix speeds within a bank, expect all kinds of strange things to happen.
Anything from nothing at all to failure to the dreaded chord are possible.

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| Macintosh Wizard and           |    Turn too late, much better fate."       |
| Auto Racing Driver             |   -- Jim Russell Racing School Instructors |
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