Re: IIgs RAM Card Identification

[Mitchell Spector <mitch2gs@hotmail.com>]

"Polymorph" <polymorph69@hotmail.com> wrote:

>I need help identifying a IIgs RAM card. I recently bought it off eBay
>and the wording on it doesn't indicate the manufacturer or the name of
>the card.
>
>Also, I'm not sure what RAM chips it requires. I tried loading 1 bank
>with 256 x 1 DRAM's off a standard 1Mb IIgs Apple RAM card, but it gave
>some funny numbers. For whatever reason the IIgs thought it had 640K
>(even though it only had 256K) installed?? I probably incorrectly
>assumed that this was a clone of an Apple IIgs RAM card because of the
>striking resemblance. Also, the jumpers seem to act differently to the
>standard Apple RAM card, because when no jumpers are installed, the
>IIgs can't see any extra RAM (whereas with the Apple card this is
>normal for 256K).

    It may very well be the Chinook RAM 4000 memory card, although it
would likely have the company name silk screened on it. Then again,
perhaps not.

    The RAM 4000 looked _indentical_ to the Apple manufactured card
for the IIgs, with the difference being the Chinook card held a total of 
4 megabytes RAM. It worked with banks of 1MBx1 DRAMs rather than
256Kx1 (I don't believe it supported the latter density chips).

Mitchell Spector