Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!nstn.ns.ca!news.cs.indiana.edu!spool.mu.edu!think.com!hsdndev!cmcl2!panix!schuster From: schuster@panix.uucp (Michael Schuster) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: Qn: 80287 with a 386 Message-ID: <1991May31.150603.15992@panix.uucp> Date: 31 May 91 15:06:03 GMT References: Organization: PANIX - Public Access Unix Systems of NY Lines: 15 In article ft0d+@andrew.cmu.edu (Feichin Tschang) writes: >Has anyone out there got any comments on using a 80287 math coprocessor with >a 386-25 or similar? I believe my system board accommodates a 287 and they're >about 1/4 the price of 387's, so my question is whether or not the 287 improves >performance within a factor of using a 387 on a 386 system. Support for the 80287 was dropped with the D stepping of the 80386. For sure your 386-25 is a D step or later. So a 287 probably wouldn't work, regardless of the motherboard manufacturer's ignorance of that fact. -- Mike Schuster | CIS: 70346,1745 NY Public Access UNIX: ...cmcl2!panix!schuster | MCI Mail, GENIE: The Portal (R) System: schuster@cup.portal.com | MSCHUSTER