Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site bbncc5.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxn!ihnp4!qantel!dual!lll-crg!seismo!harvard!bbnccv!bbncc5!sdyer From: sdyer@bbncc5.UUCP (Steve Dyer) Newsgroups: net.micro.pc Subject: Re: NEC V20 for 8088 when 8087 is used? Message-ID: <237@bbncc5.UUCP> Date: Thu, 12-Sep-85 17:36:51 EDT Article-I.D.: bbncc5.237 Posted: Thu Sep 12 17:36:51 1985 Date-Received: Sun, 15-Sep-85 11:48:03 EDT References: <400@ecsvax.UUCP> Distribution: net Organization: Bolt Beranek and Newman, Cambridge, MA Lines: 17 > <>When I bought an 8087 to put in my IBM PC, it came with a new 8088. > I was told to replace the 8088 when I put in the 8087 because the old > 8088 might not work properly with the 8087. I didn't feel like > experimenting, so I did the replacement. > > <>Question: Is this kind of matching really necessary, and, if so, > does one have to worry about replacing an 8088 with a V20 in a system > with an 8087? (Also same question for 80286, V30, 80287.) This was IBM marketing hype. There may have been a *very* small chance that your 8088 wouldn't work with an arbitrary 8087, but hardly enough to worry over. I have purchased two 8087s and a 287 for use in PC-type machines and they work just fine. Buy the V20 and don't worry. -- /Steve Dyer {harvard,seismo}!bbnccv!bbncc5!sdyer sdyer@bbncc5.ARPA