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Article #18974Re: What good are Bios RAM tests ?
From: Charles Elliott
Date: Thu, 21 Jan 1993 12:26
Date: Thu, 21 Jan 1993 12:26
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In article <1993Jan21.112136.2125@dmu.ac.uk> cph@dmu.ac.uk (Chris Hand) writes: >I took the top 4 Megs of (3-chip) SIMMs out of my machine leaving only >9-chip ones in there and the crashes have stopped, from which I conclude >that either (a) My chipset doesn't like 3-chip SIMMs, or (b) there is >a fault in the m/board which shows up when both banks are populated. As far as I know, it is *not* correct to say that a MB that can take four Meg SIMMs can use 3-chip 1Meg SIMMs. Originally, I thought that this was true, but after working for a PC manufacturer that has encountered these problems, I have been assured that this is not the case. The symptoms you are describing when using 3-chip SIMMs are exactly the same as problems that I have experienced, e.g. random lock-ups and crashes. Unfortunately, even using programs such as CheckIt (which we use extensively for system testing) will not necessarily show up these problems. All that I know, is that the chipset has to be capable of supporting a certain refresh cycle to use the 3-chip SIMMs --- Charles Elliott E-Mail:cae@dcs.warwick.ac.uk Department of Computer Science University Of Warwick Coventry CV4 7AL England >Chris Hand, Lecturer Internet mail: cph@dmu.ac.uk >Dept of Computing Science, Voice: +44 533 551551 x8476 >De Montfort University, The Gateway, Fax: +44 533 541891 FIDOnet: 2:440/32.50 >LEICESTER, UK LE1 9BH >> Linux: *free* unix for IBM PCs! <<
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Newsgroups: comp.sys.ibm.pc.hardware,comp.sys.ibm.pc.misc Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!usenet.ins.cwru.edu!agate!doc.ic.ac.uk!warwick!dcs.warwick.ac.uk!cae From: cae@dcs.warwick.ac.uk (Charles Elliott) Subject: Re: What good are Bios RAM tests ? Message-ID: <1993Jan21.122611.6550@dcs.warwick.ac.uk> Sender: news@dcs.warwick.ac.uk (Network News) Nntp-Posting-Host: stone Organization: Department of Computer Science, Warwick University, England References: <1993Jan15.111338.11134@dmu.ac.uk> <1jagkpINNarn@mudos.ann-arbor.mi.us> <1993Jan21.112136.2125@dmu.ac.uk> Date: Thu, 21 Jan 1993 12:26:11 GMT Lines: 31