Memory tests

[Wayne Stewart <waynejstewart@gmail.com>]

I acquired a few RAM cards and wanted to test them. For some like the
Apple II memory card I used the self test but for the Applied
Engineering cards I thought I'd use their RAM testing software because
it shows which chip is bad. I decided to use a IIgs upgraded IIe, a
ROM 01. First card I tried was a 1.5mb GS-RAM. The test showed most of
the RAM as being BAD. So I decided to move the RAM chips that it
indicated were good to the first bank and RAN the test again. This
time it showed totally different chips as being bad. I put that aside
and decided to test a ramfactor that had passed it's built-in self
test. The software indicated that most RAM was bad. I'm now thinking
that maybe the IIgs had bad RAM so I ran it's self test which it
passed. At that point I switched to a different ROM 01 and both cards
passed the test.
I haven't used this IIgs much as it came with a bunch of stuff I
acquired this month. I'm still thinking that there may be a memory
problem in the IIgs. Any other suggestions?