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Article #4013

Re: Detecting Bad Memory Chips of the PC

#4013
From: Eric Praetzel
Date: Mon, 26 Jul 1993 17:49
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In article <1993Jul26.023904.52079@kuhub.cc.ukans.edu> rsl11@kuhub.cc.ukans.edu writes:
>        I have posted a message in the news that I needed some information
>on detecting bad memory chips..In case you can be of any help please let me
>know...Is there any public domain software available on that? Any software
>that Ican buy?

 QAPlus has a memory test routine.
 However, most computers do a thorough (but it can be bypassed) memory
 test when they are first turned on (or hard reset).  But that does not
 mean that it will detect memory problems.  I have worked with several
 computers that had flaky memory chips and they would crash at least
 every hour (or when-ever I used Windoze).  The memory test _never_
 failed.

 If you go into the BIOS settings you can change a lot of parameters.
 For example the amount of time between refresh cycles and the memory
 timing in general.  If these are not setup properly the computer can
 do some very strange things if it warms up ...  What are proper 
 values?  Experiment and find out.  If you don't want to do that then
 you need the specs on the memory chips as well as the data from the
 mfg. of the chip-set.
 
 - Eric
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From: praetzel@maxwell.uwaterloo.ca (Eric Praetzel)
Subject: Re: Detecting Bad Memory Chips of the PC
Message-ID: <CAs9Hv.4u0@watserv2.uwaterloo.ca>
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Organization: University of Waterloo
References: <1993Jul26.023904.52079@kuhub.cc.ukans.edu>
Date: Mon, 26 Jul 1993 17:49:06 GMT
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