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Received: by minnie.vk1xwt.ampr.org with NNTP id AA7269 ; Mon, 18 Jan 93 10:50:55 EST Newsgroups: comp.unix.bsd Path: sserve!manuel.anu.edu.au!munnari.oz.au!spool.mu.edu!uunet!psinntp!pool!ujlh From: ujlh@pool.info.sunyit.edu (James Henrickson) Subject: Re: [386BSD] error: NMI port 61 b0, port 70 ff Message-ID: <1993Jan20.002740.6027@pool.info.sunyit.edu> Organization: State University of New York -- Institute of Technology References: <jeremy.727348356@scorpion.ac.cowan.edu.au> <1993Jan19.064023.27995@citec.oz.au> Date: Wed, 20 Jan 1993 00:27:40 GMT Lines: 32 In article <1993Jan19.064023.27995@citec.oz.au> sgccseh@citec.oz.au (Steve Hocking) writes: >j.laidman@cowan.edu.au (Jeremy Laidman) writes: > >>Any ideas on this error? I'm working away and from time to time I get the >>following sort of thing on my screen: >> NMI port 61 b0, port 70 ff >>Everything seems to work OK. I'm just worried that there might be some damage >>taking place that I don't know about. > > I used to get this exact same error here at work. It turned out that >some bozo had installed 100ns simms in my machine for the upper 4Mb of mem >when it was originally supposed have 80ns or better simms. Basically it is >just low level memory errors. If you have programs crashing from time to >time then this is probably the cause too. > I have an NE2000 clone set for IRQ2 and I didn't get these messages until I replaced my SVGA card with an old monochrome video card. In my case, I believe it is either (1) that my video card is too slow (it wouldn't work at all on a motherboard with a faster I/O bus), or (2) that the video card uses IRQ2. This system doesn't run full time, and I usually get the 'NMI' messages only once or twice a day. I sometimes get the messages if I have heavy Ethernet activity, but it isn't often enough to be predictable. I think the FAQ recommends moving the NE2000 to a different IRQ. I haven't noticed any other problems (I've had this configuration since August) and prefer to keep all of my computers configured the same, so I'll just ignore the messages until I get another video card. Just figured I'd shed some additional light on the 'NMI' situation.