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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!gatech!taco!tmcreek
- From: tmcreek@eos.ncsu.edu (TOBIN MATTHEW CREEK)
- Subject: Re: Does a 487sx shut down the 486sx??
- Message-ID: <1992Sep9.030007.14909@ncsu.edu>
- Originator: tmcreek@c00478-224wi.eos.ncsu.edu
- Lines: 28
- Sender: news@ncsu.edu (USENET News System)
- Reply-To: tmcreek@eos.ncsu.edu (TOBIN MATTHEW CREEK)
- Organization: North Carolina State University, Project Eos
- References: <1992Aug24.202205.26297@crd.ge.com> <1852@junkyard.UUCP> <Bu9yvA.1rq@usenet.ucs.indiana.edu>
- Date: Wed, 9 Sep 1992 03:00:07 GMT
-
-
- In article <Bu9yvA.1rq@usenet.ucs.indiana.edu>, ntaib@silver.ucs.indiana.edu (Iskandar Taib) writes:
- >In article <1852@junkyard.UUCP> joe@junkyard.UUCP (Joseph Sarkes) writes:
- >
- >>The 486 SX is also available in the 168 pin PGA ceramic package like the
- >>regular 486DX, and I suppose that the DX will fill the same socket without
- >>any problem if the PGA socket is used.
- >>The 487SX is available in a 169 pin PGA.
- >
- >I don't think it was Intel's intention that the DX should be plugged
- >into the 486SX's socket, so I think there would be some differences in
- >pinout. I imagine it wouldn't cause a short circuit, but it might just
- >not work if you tried it.
- >
- >Now thats not to say some enterprising motherboard designer wouldn't
- >make a motherboard that could take a 486DX or 487DX slot, with perhaps
- >a dip switch change...
- >
- >Come to think of it why not? That way they could cut down on tooling
- >costs and make a one-motherboard-fits-all part...
- >
- As I have posted before, I have such a motherboard. It is made by Mitac,
- and has an AMI BIOS. The processor now is a 486SX-20. There is NO 387SX
- socket. You buy a DX, change 3 jumpers, an oscillator chip, and 2 or 3 ROM
- BIOS settings, and VOILA, you have a DX board. Can go clear to 33MHz (or
- 66DX2 if cooled properly).
-
- Contact Microlab in Computer Shopper for more info.
-