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From: zucker@raid.dell.com (Brian Zucker)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Can I plug a 486SX into my 386DX slot?
Message-ID: <19508@uudell.dell.com>
Date: 8 May 91 19:21:24 GMT
References: <1991May7.230124.3873@colorado.edu>
Sender: news@uudell.dell.com
Reply-To: zucker@raid.UUCP (Brian Zucker)
Organization: Dell Computer Corporation, Austin TX
Lines: 14

In article <1991May7.230124.3873@colorado.edu> scholes@spot.Colorado.EDU (Genuine Bud Man) writes:
>
>  Forgive me if this is a tremendously stupid question, but...
>
>  I have an old Micronics 386DX-20 motherboard.  Since the
>introduction of the 486SX, I can't help but ask if it is possible
>to pull my 386 and plug in the SX.  My understanding of the 486SX is
>that it is a 486DX w/o the FPU stuff in it.  If this is true,
>then it would seem that it is externally functionally equivilent to
>a 386DX.  Is there even a prayer that the pins signals are the
>same?                        Thanx in advance, Marty

Sorry, the 486SX uses a larger package (168-pin PGA) than the 386DX (132-pin
PGA).