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- From: kak1@cray.com (Kevin Kramer)
- Subject: Re: Does a 487sx shut down the 486sx??
- Message-ID: <1992Aug19.154816.19802@hemlock.cray.com>
- Lines: 27
- Organization: Cray Research, Inc.
- References: <IeYSMJK00Voz8Vf8ZN@andrew.cmu.edu> <1992Aug19.155448.18248@ilinx.wimsey.bc.ca>
- Date: 19 Aug 92 15:48:15 CDT
-
- In article <1992Aug19.155448.18248@ilinx.wimsey.bc.ca> brian@ilinx.wimsey.bc.ca (Brian J. Murrell") writes:
- >ks3l+@andrew.cmu.edu (Kenton Shaver) writes:
- >
- >>Could anyone clear this up for me?
- >>I read it in some magazine, but my ECE
- >>friend is credulous. Will my 487sx
- >>just shut the 486sx down and take over?
- >
- >That's what I heard. IMHO the 486sx is a *big scam*.
- >
- >To get your 486sx you buy a chip which is a functional 486dx with the
- >co-pro disabled (yes more work than a regular 486dx - yet cheaper!).
- >At some point in the future you need the co-pro, so you buy a 487sx, which
- >is just the regular 486dx with a 487sx stamp on it, which shuts down the
- >486sx crippled chip and takes over the machine running it like the 486dx
- >it should have been!!
- >
- >The above is all rumour I've heard from many sources, and read in a trade
- >rag. It is not the gospel!!
- >
-
- I don't think it involves more work to make the 486sx chips, they are probably
- rejected chips because of a fault in the math coprocessor part. So they just
- disable that section of the chip and now they can use what once was a bad
- chip. It is a big scam IMHO, I can't see why anyone would buy one of these.
-
- Kevin
-