[comp.sys.apple] Memory expansion

mw22#@ANDREW.CMU.EDU.UUCP (04/02/87)

I have a MultiRam CX with 256K and am interested in upgrading to 512K.  Is
there a simple way to do this by replacing the RAM chips on the board with
RAM chips that have more memory?

Thanx

Michael Wertheim
(Carnegie Mellon University)

SEWALL@UCONNVM.BITNET (04/27/87)

For Bruce Jones and others:

Funny you should should mention that limitation of Apple memory
cards.  I'd heard about the problem with its inability to recognize
extra desk top for earlier versions of AppleWorks, but I bought
AE's RAMFactor because there are several other things that RAMFactor
will do that the Apple card won't.

For example, you can boot from the RAMFactor.

The RAMFactor can be divided into as many as 9 partitions (although
only one partition can be accessed at a time (rebooting is necessary
to change partitions).  One partition can be Apple desktop (the card
comes with software for modifying AppleWorks <several versions> to
recognize the RAMFactor).

I have a 400K DOS 3.3 RAM disk as one partition.  I'm not sure, but
I don't believe the Apple card supports DOS 3.3

The RAMFactor also is compatible with the Apple card, so software
written for the Apple card will work with RAMFactor, and the RAMFactor
works in the IIgs.

It seems to me that I read somewhere that the Apple card also keeps
its FAT (File Allocation Tables) in main memory where it can get
whacked by software or by rebooting (boo).  The RAMFactor keeps its
FAT on the card where it's relatively protected.  I say "relatively"
because I did manage to clobber a partition fooling with some new
"buggy" software (it probably would have crashed a disk if I'd been
running it off a floppy).

I also got the battery backup. It's expensive, but I recommend it; it
simply takes too long to load 750K or more from floppy disks everytime
the Apple is turned on.

I doubt that the software that comes with the RAMFactor which modifies
AppleWorks will work with the Apple card.  I'll bet it depends on the
RAMFactor's firmware, however if you have several Apple memory cards
already, you might buy one RAMFactor and try it.

eww@OBERON.LCS.MIT.EDU.UUCP (04/27/87)

My unending thanks to you that killed the Pamona Duplicator!
My unending thanks to you that killed the Pamona Duplicator!