Re: Need help identifying this card...

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

Labelas Enoreth <labelas@hotmail.com> wrote:

> Card has 'Z-RAM' on it on the center.

That is Applied Engineering's memory expansion card for the Apple IIc.
It is functionally equivalent to a RamWorks card for a IIe.

> 16 socketed chips labeled
>    (V logo sort of like the viacom logo) 9105
>    V53C100AP10

That will be the RAM (1 MB total).

> 1 40-pin socket

The CPU or MMU goes here (I forget which - the MMU seems more likely).

> bottom of card has a 40-pin connector on it (looks like it is inserted
> directly in a chip socket of some kind)

Yep.  It is inserted in place of either the 65C02 CPU or the MMU, which
then gets moved to the socket on the Z-RAM>

> 18-pin ribbon cable connecting to a small module which looks like it plugs
> piggyback on top of a PLCC socket

I'm not sure what this is supposed to be for.  I've never actually seen
a Z-RAM, but I have seen inside a IIc, and there aren't any PLCC chips
in there, at least not for the original motherboard.  There might be
some in the IIc+, or (less likely) the "memory expansion" IIc model,
neither of which I've seen.

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P O Box 27-103, Wellington, New Zealand