Subject: Re: First BSD system
To: None <cruller@unicom.net>
From: Bill Studenmund <wrstuden@nas.nasa.gov>
List: port-mac68k
Date: 06/04/1999 12:18:24
On Fri, 4 Jun 1999 cruller@unicom.net wrote:

> Daniel Knight wrote:
> > 
> > Jer writes:
> > 
> > >If memory serves me right an 8 meg LCs might come w/ (2) 4 meg simms,
> > >I'll have to check,  that could give you :24 megs in the IIcx;SE/30
> > 
> > That hadn't even occurred to me, but would provide me with 16MB for the
> > IIcx, IIsi, or SE/30.
> 
> Here is what NewerTechs GURU says
> cpu   simms  #pins   min	 SIMMS
>       slots  /simm  speed	per bank
> -------------------------
> IIcx    8    30pin  120ns	   4
> IIsi    4    30pin  100ns	   4
> SE/30   8    30pin  120ns	   4
> LC      2    30pin  100ns	   2
> LCII    2    30pin  100ns	   2
> 
> That would give you 24 for a IIcx or SE/30 if you cannabalize the
> IIsi(8Mb), LC(8Mb) & LCII(8Mb) or 17 for the IIsi(1Mb on board) of you
> cannabalize the LC & LCII

Just so it's clear, on everything listed above except the LC{,II}, the
memory banks are 4 SIMMs wide. So assuming the LC's have 4 MB SIMMs, you
have to cannabalize both of them for it to be usefull in the other
machines. :-)

Take care,

Bill