Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uwm.edu!cs.utexas.edu!tut.cis.ohio-state.edu!pt.cs.cmu.edu!dsl.pitt.edu!pitt!speedy.cs.pitt.edu!km From: km@speedy.cs.pitt.edu (Ken Mitchum) Newsgroups: comp.sys.ibm.pc Subject: Re: 386 Memory question (simms) Message-ID: <7799@pitt.UUCP> Date: 6 Jun 90 13:47:45 GMT References: <5923@buengc.BU.EDU> <4922@plains.UUCP> Sender: news@pitt.UUCP Reply-To: km@speedy.cs.pitt.edu (Ken Mitchum) Distribution: usa Organization: Univ. of Pittsburgh Computer Science Lines: 8 Each 1mb x 9 SIMM can be addressed as 8 bits (+ parity bit). Because you are addressing memory as 32 bit data, you must use 4 SIMMS in parallel to generate all 32 bits. This is why you must install a minimum of 4 SIMMS, regardless of capacity. For 256K SIMMS, this is 1 mb. For 1mb SIMMS, this is 4 mb. Ken Mitchum KY3B km@cs.pitt.edu