Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucsd!swrinde!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!psuvax1!rutgers!elbereth.rutgers.edu!medici From: medici@elbereth.rutgers.edu (Mark Medici) Newsgroups: comp.sys.ibm.pc Subject: Re: Weitek 3167 "Abacus" Numeric Coprocessors Keywords: weitek, 3167, 80387 Message-ID: Date: 2 May 90 21:55:04 GMT References: <2988@darkstar.ucsc.edu> Reply-To: medici@elbereth.rutgers.edu (Mark Medici) Distribution: usa Organization: Rutgers Univ., New Brunswick, N.J. Lines: 24 In article <2988@darkstar.ucsc.edu> b2wild@ucscb.UCSC.EDU (-b2wild-) writes: > >I just bought a 3167 Weitek math co-processor for my '386 clone. >I stuck the thing on the board, but it doesn't seem to be doing >anything (the board cmos setup can't find it). No jumpers are >listed for it on the board (just a '387 enable, which works fine >with the '387 that was replaced, but locks up the machine with the 3167). > >Is there something I should be doing to activate it? Right >now, it seems to be just along for the ride. Has anyone else >had trouble getting it to work? The 3167 is not a substitute or replacement for the '387 chip - it is an alternative. Software that requires a '387 will not use the Weitek 3167 instead, and your system will not recognize it as a '387. It is for this reason that many (most?) 3167's are shipped on a daughter- board that also permits simultaneous installation of a '387 chip. In order to get any use of the 3167, you must run software specifically written to address it. At least, this is what I recall from my research on the subject. ---------------------------------------------------------------------------- Mark Medici/SysProg3 * Rutgers University/CCIS * medici@elbereth.rutgers.edu ----------------------------------------------------------------------------