Re: Where to get RAM for IIGS

[mjmahon@aol.com (Michael J. Mahon)]

Ryan Tremblay (ryan@1st.net) wrote:
 

>Ok I happen to find a 286 in my basement that got donated to the Internet
>Club from the college I attended (long story) anyway I took the chips out
>and added them to the IIGS RAM Expansion card.  I turned it on and it will
>not recognize it.   I noticed on the chips  the soldered on ones say TMS
>4256-15NLA on the top and EHP 8749 and an A on the bottom.  The ones I put
>in say  TMS 4256-12NL on the top and EGP 8740 on the next line and nothing
>after that.  I assume it needs the same specs on the ram I put it for it to
>work?  I also noticed I had some inserted than the rest of them are I was
>curios if that was the problem but I fixed it and still no luck.  Is it
>better off buying another board with more RAM?  Please help.

Ryan, I think the chips you found are fine.  You might check two
things, though.  1) Are they all plugged in with the correct orientation--
pin 1 marks going the same way as the soldered-in ones--and are
all the pins properly seated?  2) Are you using diagnostic software
to test the RAM on the card?  This is important, because bad things
can happen to chips when they are handled.  Anytime you "stuff"
a RAM board, you should run a memory diagnostic.  (I know that
some people just try AppleWorks, but that's not a very effective
test!  ;-)


-michael

 Email:  mjmahon@aol.com
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