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From: hunt@ernie.Berkeley.EDU (Jim Hunt)
Newsgroups: comp.sys.ibm.pc
Subject: Re: 386SX replacements for 80286 machines
Keywords: whatever happened to them?
Message-ID: <19132@pasteur.Berkeley.EDU>
Date: 3 Nov 89 18:47:49 GMT
References: <786@awdprime.UUCP> <1989Nov2.080213.2989@ico.isc.com> <4001@peora.ccur.com> <89Nov2.162059est.18926@me.utoronto.ca>
Sender: news@pasteur.Berkeley.EDU
Reply-To: hunt@ernie.Berkeley.EDU.UUCP (Jim Hunt)
Organization: University of California, Berkeley
Lines: 23

In article <4001@peora.ccur.com> joel@peora.ccur.com (Joel Upchurch) writes:
>
>I suspect that there isn't much market for these modules. With the
>new 386SX pricing it is easier to do a complete motherboard swap.

Stop and consider here.  If the cost of a motherboard is the cost
of manufacture, plus amortized development costs, then why are
the SX boards so cheap?  Might it be that we are just getting 286
boards with 386SX stuffed in?  I can't explain $400 motherboards
any other way when all the DX boards are $1000 (other than charge
what the market will bear).  So, if they can munge the design to
take an SX, and sell us whole motherboards for $400, then how
much could it cost for a tiny daughter board?

Other answers:
No, you can't put in an SX and jack up the speed, there are hard
limits in the speed of a board due to the board itself.  The
advantage you get from the SX is better Ucode and more
instructions available.

jim hunt@ernie.Berkeley.EDU	H&H Enterprises (1 employee)
These ARE the bosses opinions, I AM the * boss!!!
grad UCB, MS EE/CS, May 90, resume on request.