Re: GS RAM ULTRA DRAMs

["Mark Cummings" <NOTfigjams@primus.com.au>]

Excellent, just as I was hoping.

Do you know where I can put them 2 at a time (256K) without being crude, or
do I just keep guessing until I get lucky. :)
I suppose there will be a pattern, once I start.
The annoying thing is I can get heaps of 1bit x 1MB chips from the local
electronics shop, and extremely cheap, because they are clearing them from
stock. 4bit x 256K, now that's another story.

2816K coming right up this weekend, + the 1MB onboard will almost make a 4MB
ROM-3.

Another thing I'm looking for is a test program for this card if one was
ever made.

Mark


Wayne Stewart <waynes@intergate.ca> wrote in message
36cd6118.0106180854.19379511@posting.google.com">news:36cd6118.0106180854.19379511@posting.google.com...
> Mark Cummings wrote
> > I have a 2MB AE GS-RAM-ULTRA which uses fairly hard to find 44C256-10,
20
> > pins.
> >
> > So far I found 6 only, and I need 10 more.
> > 4 were on my old 1MB 286 clunker, no hesitation in using them, besides
they
> > are socketed.
> > 2 were on a 384K RAM expansion card for the XT/AT, also no problem
losing
> > those.
> > that's all I have, I'm not sure of the bank configurations on this card.
> > Can anyone shed any light on this, I don't have a book, and I'd like to
know
> > if I can run any options between 2MB and 4MB for now.
> > The banks I have full are the 16 sockets nearest to the front.
> > If it's anything like my GS Juice Plus, it'll be 1MB, 2MB and 4MB only,
but
> > then they are 1-bit chips and it takes 8 to make a byte. This card is
> > different and the chips are 4-bit, so it only takes two to make a full
byte,
> > so maybe there are other options.
>
> AE said in their advertizing "GS-RAM Ultra expands from 256k to 4 MEG in
> 256k increments" Likely wouldn't make much sense using that particular
memory
> chips if you had to use 1mb increments. regular ones were cheaper.
>
> The IIgs itself appears to no problem with odd sizes. I spent a year
adding
> chips 2 or 4 at a time to a RamPac4GS. Must have gone through almost every
> possible memory size before it filled
>
> Wayne