Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!snorkelwacker!bloom-beacon!eru!luth!sunic!draken!d88-jwa
From: d88-jwa@nada.kth.se (Jon Watte)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Apple is dumping 120ns SIMMS into SE/30s
Message-ID: <2827@draken.nada.kth.se>
Date: 2 Feb 90 13:21:39 GMT
References: <15@hite386.UUCP> <7852@hubcap.clemson.edu>
Reply-To: d88-jwa@nada.kth.se (Jon W{tte)
Organization: Royal Institute of Technology, Stockholm, Sweden
Lines: 25

In article <7852@hubcap.clemson.edu> jcocon%hazel.cs.clemson.edu@hubcap.clemson.edu writes:

>All 16MHz Macs will run as fast with 120ns chips as with 70ns chips.  The 
>wait states are hardwired, regardless of memory speed.

>Apple is not dumping.  80ns chips are really a waste in anything less than
>a IIci, unless you get an accelerator card.

>Apple deserves flaming for somethings, but this isn't one of them.

Nope !

A 16 MHz machine will not run at all if the SIMMS are 120 ns, since
the data won't be there when the CPU wants it.

"Luckily" for customers with 120 ns SIMMS in their SE/30's (I have
100 ns, I checked) the classification temds to be conservative and
allow for temperature changes and aging.

It _is_ bad of apple to put 120 ns SIMMS in a 16 MHz machine. Period.

h+
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