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Newsgroups: comp.os.386bsd.questions Path: sserve!manuel.anu.edu.au!munnari.oz.au!uniwa!cujo!cproto From: cproto@cs.curtin.edu.au (Computer Protocol) Subject: Re: /386bsd: NMI port 61 b0, port 70 ff ???? Message-ID: <cproto.731567802@marsh> Sender: news@cujo.curtin.edu.au (News Manager) Organization: Curtin University of Technology References: <1993Mar6.202010.3841@sifon.cc.mcgill.ca> <1993Mar7.072329.13390@coe.montana.edu> Date: Mon, 8 Mar 1993 05:16:42 GMT Lines: 26 nate@cs.montana.edu (Nate Williams) writes: >In article <1993Mar6.202010.3841@sifon.cc.mcgill.ca> storm@cs.mcgill.ca (Marc Wandschneider) writes: >>A quick trip through /var/log/messages came up with the following this morning: >> >>/386bsd: NMI port 61 b0, port 70 ff >> >>Anybody know what this means...? >> >Bad memory chips. (I get them too.) >Get faster memory.. >Nate I had this NMI problem. But then I heared on the net that the cause is either bad memory chips (or to slow ones) or the combination of 3 chip and 9 chip SIMMS. I had 4 MB of 3 chip and 4MB of 9 chip SIMMs. Using QAPLUS under MS-DOS I did verify that there is no obvious memory problem. I then swapped my 3 and 9 chip SIMMs (from different manufacturers) to cheap Hyundai 3 chip SIMMs (8 MB i.e. 8 SIMMs). The problem has disappeared since. I'm still not sure about the cause but my gut feel is that 3 and 9 chip SIMMs are not really compatible ?!? BTW all the SIMMs are 70 ns. Regards - Tibor Sashegyi (cproto@cs.curtin.edu.au)