Re: memory tester

["Greg J. Buchner" <buchner@tcfreenet.org>]

On Wed, 22 Mar 2000, Phoenyx wrote:

> If it's memory on an Applied Engineering card, they had a very
> good test program they released with their utilities. 

I'd have to say that it's OK at best.  I had some ram chips on
my AE GS-RAM+ that ended up with some crosstalk/bank boundary
errors.  Basically you could write some data in one bank and
it would change the bits slightly in a couple of other banks
in the same group of 8 1Mbit chips.

The AE program did not find these errors no matter how long I
left it running.  Which was in excess of 24 hours once as I
suspected I had memory problems.  How I first ended up finding
the error was with a program I wrote myself.  Basically I created
a RAMDisk taking up the entire RAMcard and filled it with a text
file that consisted of many many lines of 79 '-'s followed by
a carriage return.  Then I wrote a short basic program to 
continuously read it and approx. six hours later, it errored
out.  At that point I assumed that the AE test was not very
thorough.

Greg B.

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