Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!zaphod.mps.ohio-state.edu!nisca.ircc.ohio-state.edu!hpuxa.ircc.ohio-state.edu
From: gaynor@hpuxa.ircc.ohio-state.edu (Jim Gaynor)
Newsgroups: comp.sys.mac.hardware
Subject: SIMM slots on IIsi
Message-ID: <5749@nisca.ircc.ohio-state.edu>
Date: 16 Oct 90 17:41:35 GMT
Sender: news@nisca.ircc.ohio-state.edu
Organization: The Ohio State University (IRCC)
Lines: 21
Originator: gaynor@hpuxa.ircc.ohio-state.edu


	I got to poke around a IIsi's motherboard today - it's a nice,
compact design, with a number of VLSI chips.  I'd been wondering why the
IIsi's specs said that the IIsi could go up to 17 megs of RAM - 17's a
prime number, I thunk.  What's going on?

	Seems that the IIsi has 4 SIMM slots, and 1 meg of -surface mounted-
RAM on the motherboard.  A-ha!  That explains it!  (4 x 4meg) + 1meg = 17 meg.
Also explains the 7 meg RAM limit of the LC: 2 SIMM slots plus 1 meg of
surface RAM.

	But what I found to be one of the nicest improvements on the board
were the SIMM slots themselves.  Instead of using the breakable plastic
brackets to keep the SIMMs slotted, the brackets are metal, and very
obviously -meant- to bend rather than break.  Aaahhhh...

-- 
+-----------------------------------------------------------------------------+
| Jim Gaynor - The Ohio State Univ. - IRCC - Facilities Mgmt. - OCES  <whew!> |
| Email [gaynor@hpuxa.ircc.ohio-state.edu], [gaynor@agvax2.ag.ohio-state.edu] |
|_  "Don't tell me truth hurts, little girl; because it hurts like hell..."  _|