Re: GS ram expansion

[dempson@actrix.gen.nz (David Empson)]

Greg Andrzejewski <pressyourluck85@yahoo.com> wrote:

> There is a GS-RAM card by Applied Engineering on ebay. The card has all but
> 8 slots empty. Where could I find the chips to put in it?

The Applied Engineering GS-RAM uses the same RAM chips as the Apple
card, but it maxes out at 1.5 MB, so you won't be much better off.

The AE GS-RAM Plus is a better card, as it uses 1M chips, and supports
up to 6 MB in total.

Both cards violate the "four row" limit I described earlier, and some
variants are not compatible with DMA.  They may also need a PAL
(programmed array logic) chip change if moved between a ROM 00/01 and
ROM 3 IIgs.

Other IIgs memory expansion cards which are designed to match the
motherboard (limited to four rows) are fully compatible with both the
ROM 00/01 and ROM 3 motherboards.

-- 
David Empson
dempson@actrix.gen.nz