Re: Apple IIc+ & Memory

[hlevinsn@andromeda.rutgers.edu (Hank Levinson)]

"Gus Vilomar" <gvilomar@bellsouth.net> writes:

>Does anybody know how I can find out the Mhz and memory of my Apple IIc+?
>Once I know this, how can I add more memory?  How much?  and where can I get
>it?

>Gus


Most Apple IIc+,s and IIc's have 128K of RAM in two 64K banks. Use
AppleWorks, modified to recognise extra RAM, to check if your IIc+
has any more than the standard 128K.

The Apple IIc+ runs at about 3.6 Mhz. This has two consequences: first
it messes-up Apple's (1 Meg) memory expansion card, and secondly you
cannot speed-up a IIc+ with an 8 Meg ZIP-chip or a 10 Meg RocketChip.
(You can speed-up an ordinary IIc with these little miracles.)

The IIc+ has a "memory expansion" socket like an enhanced-type IIc,
but Apple (brand) IIc RAM expansion boards don't work in IIc+'s!

Applied Engineering made a RAM expansion board it called "Z-RAM"
(3 different versions) which plugged into the 40-pin 65C02 socket.
The 65C02 plugged into the A.E. board, and it was a pain to plug
the RAM board into the 40-pin 65C02 sockey on the IIc+ motherboard.
There was also a jumper to a pin of another chip on the motherboard.
(A Z80 chip on the reverse side of the RAM board provided dynamic
refresh to the D-RAM chips.) They worked on all IIc and IIc+
models, with or without the memory expansion socket.

Z-RAM can ocasionally be found for sale on eBay. It's expensive
there though. It should come with AppleWorks expander software,
which has patches for AppleWorks to recognize the extra RAM. All
software must be modified to recognize extra RAM with special
patches. I remember my disapointment when I plugged my first
RamWorks board into a IIe and AppleWorks didn't recognize it...

Good luck!