Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!ted
From: ted@cs.utexas.edu (Ted Woodward)
Newsgroups: comp.sys.mac.hardware
Subject: Re: mac se memory upgrade
Keywords: 4meg, whats the trick?
Message-ID: <803@lovelady.cs.utexas.edu>
Date: 4 Jul 90 04:58:37 GMT
References: <3479@chomsky.oakhill.UUCP> <1498@excelan.COM>
Organization: U. Texas CS Dept., Austin, Texas
Lines: 27

In article <1498@excelan.COM> barrey@ka.excelan.com (Barrey Jewall) writes:
 
>RAM SPEEDS FOR MACINTOSH
 
>Mac Plus, SE	-150ns
>Mac II		-120ns
>MAc IIx, IIcx	-100ns
>Mac IIci,SE/30	-80ns (Fast Page Mode)
 

Ah, not quite.  Here is the correct table:

Mac Plus, SE             -150ns
Mac II, IIx, IIcx, SE/30 -120ns
Mac IIci                 -80ns, fast page
Mac IIfx                 -80ns, 64 pin fast page

Now, I know for a fact that Apple puts faster than needed memory in some
machines.  I've seen 100ns in an SE, but never 150ns in a II series.
I really get a kick when I upgrade a really old machine that has 256K DIP SIMMS.
Often the 256K SIMMS are quite a bit larger than the 1 megs!


-- 
Ted Woodward (ted@cs.utexas.edu)

Greetings, Royal Ugly Dudes!