Re: How much memory does a Ramworks III hold?

[spec@vax2.concordia.ca (Mitchell Spector)]

In article jgrav89894@aol.com (JGrav89894) writes...

>I'm waiting on my first Apple //e computer to get here from work. I saved it
>from the school system's salvage pile :-) Anyway, while digging through the
>miles of salvage computer junk, I got 2 Ramworks III cards. Both were
>half-filled (16 of 32 slots) with memory chips. I took 'em off one and filled
>the other one completely up. How much do I now have on the card?

    It depends. The RamWorks III could use either 64Kx1 or 256Kx1 DRAMs,
so at minimum your fully populated card could be 256K, and at maximum it
would be 1024K (a full megabyte). Look at the part number on each chip,
if they all have "256" in the part code (i.e. 41256-15) then you have a
board with 1 MB of memory.

    In theory it can be expanded up to 3 MB, but the piggyback board you
require to accomplish this is extremely rare. I heard AE made so few,
they were manufactured by hand. There was also a 512K piggyback board,
as well as RGB adapters for the card, which are easier to find. In any
case 1 MB is more than ample for an Apple IIe (not too mention we're
talking about bank switchable memory here, the IIe does _not_ see it 
all as one large linear addressable chunk).

Mitchell Spector
spec@vax2.concordia.ca