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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!mcsun!sun4nl!eur.nl!evas
- From: evas@cs.few.eur.nl (Eelco van Asperen)
- Subject: Re: Can I use a 387DX 33MHz on a 386DX 40MHz
- Message-ID: <1992Jul22.092228.5716@cs.few.eur.nl>
- Sender: news@cs.few.eur.nl
- Organization: Erasmus Universiteit Rotterdam
- References: <144to2INNc7j@agate.berkeley.edu> <6367NB2w164w@cellar.org>
- Date: Wed, 22 Jul 1992 09:22:28 GMT
- Lines: 25
-
- revpk@cellar.org (Brian 'Rev P-K' Siano) writes:
- >forest@soda.berkeley.edu (Forest Edward Wilkinson) writes:
-
- >> In article <4689@unixhub.SLAC.Stanford.EDU> johnw@jupiter.SLAC.Stanford.EDU (
- >> >He wants to add a math coprocessor which is rated at
- >> >33MHz to his 386DX 40MHZ motherboard (AMD CPU) with 64k cache.
- >>
- >> Sure it's possible. Just be sure you don't overheat the coprocessor
- >> by running it at a speed it's not rated for. Use a heat sink if
- >> possible.
- >> --
- >> Forest Edward Wilkinson
- >> forest@soda.berkeley.edu
-
- > So, what you're saying is, if you want to buy a math coprocessor, it
- >has to run at the same MHz as the CPU. Correct?
-
- That depends on your motherboard; my 386-40 board has a jumper that allows
- you to set the coprocessor speed to 33 or 40 Mhz. I assume this was done
- because there were no 387-40's around when the 386-40 came out.
- --
- Eelco van Asperen. || Erasmus University Rotterdam
- internet: evas@cs.few.eur.nl || Department of Computer Science, room H4-32
- New, Improved, a disclaimer: || PObox 1738, 3000 DR Rotterdam, The Netherlands
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