Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!ucla-cs!oahu.cs.ucla.edu!chao From: chao@oahu.cs.ucla.edu (Chia-Chi Chao) Newsgroups: comp.sys.ibm.pc.hardware Subject: Re: Qn: 80287 with a 386 Message-ID: <1991May30.181700.26938@cs.ucla.edu> Date: 30 May 91 18:17:00 GMT References: Sender: usenet@cs.ucla.edu (Mr. News Himself) Organization: UCLA Computer Science Department Lines: 14 Nntp-Posting-Host: oahu.cs.ucla.edu 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. Yes, 287 does improve FP performance, but of course, not as high as 387. The only problem I have encountered is with the shareware version of Eureka which I downloaded recently. The documentation says that improperly clocked coprocessor may cause crashes, and I got crashes when I ran the program with 287 enabled. The Intel coprocessor test, however, ran without any problem. -- Chia-Chi Chao chao@cs.ucla.edu ..!ucbvax!cs.ucla.edu!chao