Okay, I ordered some new RAM from OWC--six 256M sticks, because I need three
for my B&W G3 (for a total of four, including one 256M I already have) and
my parents wanted three to max out the memory on their PC, which also uses
the same kind. 

I prepared to test the memory using the sandwich method described on this
list by Jeff Walther, using the 64M Samsung and 256M Kingston DIMMs that
were in the G3 when I bought it. These were in slots A & D (the first and
last slots). I had previously run the memory test on the Samsung and
Kingston DIMMS overnight, and they passed over 5400 passes. I know that some
of the memory is taken up in order to process the test, so I can't consider
them absolutely good, but I figured I could work, for the moment, from that
assumption. 

After the first two OWC DIMMs failed in slot B on their very first pass, I
tried one of them in slot C, and it again failed on the first pass. So I
wondered about whether both of those slots were bad. After all, when I got
the computer, the Samsung and Kingston DIMMs were in slots A & D,
respectively, and that's where they were when I'd used the computer
successfully and where I'd done that long run with no failures. So I removed
the OWC memory, left the Samsung in slot A and moved the Kingston to slot B.
I successfully ran over 300 tests. Too impatient to wait for thousands of
passes, I moved on, this time leaving Kingston in slot B and moving Samsung
to slot C. Again, I was able to run over 300 passes without a failure.

So can I reasonably assume those sockets are probably okay?

So maybe this was one of those batches Jeff mentioned, with a high
percentage of bad DIMMs? I'm now testing the rest, but it doesn't look good,
as numbers 3 and 4 have now failed. OWC guarantees their memory, but it's a
hassle, and I worry that I've somehow got the wrong flavor of memory and
getting more of the same kind won't help.

Thanks for any light anybody can shine on all this,
Joy


~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
Joy Freeman
~ from manuscript to bound book ~
Editorial, Design, and Production Services
[EMAIL PROTECTED]




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