Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!ut-emx!nghiem From: nghiem@ut-emx.UUCP (Alex Nghiem) Newsgroups: comp.sys.ibm.pc Subject: Re: EISA 33 Mhz boards vs non EISA. Was: 20 Mhz 386 SX (?) Message-ID: <25172@ut-emx.UUCP> Date: 27 Feb 90 06:44:37 GMT References: <1109@watserv1.waterloo.edu> <2221@ultb.isc.rit.edu> <1132@watserv1.waterloo.edu> <25E97CF2.6432@maccs.dcss.mcmaster.ca> Reply-To: nghiem@emx.UUCP (Alex Nghiem) Distribution: comp Organization: UTexas Computation Center, Austin, Texas Lines: 19 In article <25E97CF2.6432@maccs.dcss.mcmaster.ca> cs4g6ag@maccs.dcss.mcmaster.ca (Stephen M. Dunn) writes: >- if you're upgrading an old PC, your old cards will still work in an > ISA/EISA machine, whereas to go MC you'll have to replace them _all_. Gotcha! (:->) There are PC/XT boards that will not work in even an AT machine no matter how hard you try. I have an Everex Evercom 1200 that refuses to work in anything other that a PC/XT bus. It appears that bus speed/timing is the issue here. But, I do agree that ISA/EISA is designed to work with the older cards. __________________________________________________________________________ This article is posted for factual information only. Any misrepresentation, if any, is purely unintentional. Any opinion expressed or implicit in these remarks are solely my own. nghiem@emx.utexas.edu !cs.utexas.edu!ut-emx!nghiem nghiem@walt.cc.utexas.edu !cs.utexas.edu!ut-emx!walt!nghiem