Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!mahendo!wlbr!lonex.radc.af.mil!ratazzie From: ratazzie@lonex.radc.af.mil (E. Paul Ratazzi) Newsgroups: comp.sys.ibm.pc.hardware Subject: Need info. about coprocessor in DTK machine Keywords: DTK, coprocessor Message-ID: <1991Apr16.173834.9949@lonex.radc.af.mil> Date: 16 Apr 91 17:38:34 GMT Sender: ratazzie@lonex.radc.af.mil (Edward P. Ratazzi) Organization: Rome Laboratory Lines: 26 I have a DTK 25MHz 386 machine. The model number seems to be KEEN-2503 or something like that. I am trying to install a Cyrix 83D87 coprocessor. When I place the coprocessor in the 121-pin Weitek socket (the Cryix is supposed to be able to go in a Weitek socket or a 68-pin 80387 socket) the machine will not boot up. The BIOS setup says that the coprocessor option is set to autodetect. My questions: 1. Does anybody who has a similar DTK machine know if there are jumpers or other settings that need to be changed when installing a coprocessor? 2. Some computers have 2 sockets: one for a Weitek and one for a 387. I saw only a Weitek socket. Is there a 387 socket hidden somewhere (under the hard disk maybe)? 3. Anybody know a tech support line for DTK? TIA, -- E. Paul Ratazzi | ratazzie@lonex.radc.af.mil Microelectronics Reliability Division | COMPMAIL: e.ratazzi Rome Laboratory (USAF/AFSC) | (315) 330-2946 "Exploring the Invisible Frontier" | DSN 587-2946