Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!sumax!amc-gw!nwnexus!intek01!mark
From: mark@intek01.UUCP (Mark McWiggins)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Is the 386SX pin compatable with the 286?
Keywords: 80386SX
Message-ID: <218@intek01.UUCP>
Date: 18 Jul 89 17:08:27 GMT
References: <20851@hodge.UUCP>
Organization: Integration Technologies Inc. (Intek), Bellevue WA
Lines: 20

jdm@hodge.UUCP (jdm) writes:


>	I heard this crazy thing that the 80386SX is completely
>	pin compatable with the 80286 then therefore it should
>	be possible to replace the 286 on any motherboard with
>	a 386SX.  Anybody else heard of this?  Would there not
>	be some BIOS problems if this were possible?

As I understand it, the 386SX is not only not pin compatible, it has
enough timing weirdnesses vs. the 286 that a 286-to-386SX upgrade is
generally infeasible except for chipsets like C&T's NEAT, which are
designed for it.

Mark McWiggins
Integration Technologies, Inc. (Intek)
1400 112th Ave. SE #202
Bellevue WA  98004
(206) 455-9935
uunet!intek01!mark