Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!bpa!drexel!jeff
From: jeff@drexel.UUCP (Jeff White)
Newsgroups: comp.sys.mac
Subject: Re: Another Memory Question?
Summary: Plus/Se in pairs, II in quad units
Keywords: Memory SIMMS MAC II
Message-ID: <830@drexel.UUCP>
Date: 11 Dec 88 21:11:41 GMT
References: <825@savax.UUCP>
Organization: Drexel University, Phila., Pa.
Lines: 14

In article <825@savax.UUCP>, michali@savax.UUCP (Paul C. Michali) writes:
> Someone had mentioned that memory on the PLUS and SE had to be done in pairs.
> 
> Is this true for the Mac II?  Can one have 3MB ( four 256K and two 1M SIMMS)?


  No.  SIMMs are installed in pairs in SE's and Plus's because the data bus
in those machines is only 16 bits wide (each SIMM accounts for 8 bits).  The
Mac II, on the other hand, has a 32 bit bus, and thus memory has to be
installed 4 SIMM's at a time.

						Jeff White
						Drexel University - ECE Dept.
						rutgers!bpa!drexel!jeff