Oldsters,
Did the 64 pin ram for IIfx's come in various sizes? And how
can that be distinguished out of the machine?
--
All the Best,
R.A. Cantrell
[EMAIL PROTECTED]
Visit R.A.'s Old Mac (mostly) Stuff @
http://tinyurl.com/vfvn
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Vintage Macs is sponsored by
Original Message:
Oldsters,
Did the 64 pin ram for IIfx's come in various sizes? And how
can that be distinguished out of the machine?
--
All the Best,
R.A. Cantrell
They come in sizes of 1, 4, 8 and 16 MB and they always have to be
installed in sets of 4 equal modules.
I do
I wrote:
The 4MB SIMMS are the problem.
The 8*24GC has 2 MB of onboard VRAM and for expansion 2 MB should be added
to the SIMM slots. One SIMM of 1MB in each slot.
The above quote from previous posting implies that DeVaul's problem would
be fixed by using IIfx 1 MB simms instead of IIfx 4 MB
--- Jack Countryman [EMAIL PROTECTED] wrote:
I have a set of 4 4 meg 64 pin simms, and several 64
pin 1 meg simms here if
anyone is interested. I think I got this for an old
LaserWriter that ended
up needing other expensive repairs I didn't try.
Make offer...
LaserWriter SIMMs won't
--- flawed jai [EMAIL PROTECTED] wrote:
wizard--I'm following this discussion with interest.
while i do not
understand every last thing you are talking about, i
had never heard of
converting the RAM on a IIfx before. i gather that
you are studying the
structure of how the RAM cips
wizard: [EMAIL PROTECTED] offered me a set of IIfx RAM sticks just a
few days back. try her and see if she still has them. i didn't have
the cash or paypal to take her offer at the time. and keep us posted.
curiouser and curiouser.
go, wizard, go!
janet
http://community.webtv.net
MicroMac sells (or sold) SIMM stackers that would
put four 30pin SIMMs in each IIfx slot. Expensive
though! (Like most of their stuff.)
The SIMM stackers for the IIfx are for 64 pin SIMMs.
What makes the IIfx's SIMMs special is that they
have separate pins
for data input and
At 00:15 -0800 on 01/04/02, Gregg Eshelman wrote:
MicroMac sells (or sold) SIMM stackers that would
put four 30pin SIMMs in each IIfx slot. Expensive
How did they overcome the problem that four 30-pin SIMMs make a 32-bit RAM
chip, which is then sitting in an 8-bit slot?
the pickle
FAQ
MicroMac sells (or sold) SIMM stackers that
would put four 30pin SIMMs in each IIfx slot.
As I recall, their stackers would put two 64pin SIMMs from your
machine's inventory into a single shot. Say you had 20MB configured
as four 1MB and four 4MB SIMMs. At the cost of about $100, you could
The specs are still on MicrMac's site:
http://www.micromac.com/products/simmdoubler_ii.html
They weren't for 30pins! Of course, nobody would go out and buy
eight 8MB SIMMs to configure a 64MB memory. They'd buy the 16MB
SIMMs at something more than twice the cost of 8MB units and then
wizard--I'm following this discussion with interest. while i do not
understand every last thing you are talking about, i had never heard of
converting the RAM on a IIfx before. i gather that you are studying the
structure of how the RAM cips and pins were designed for the IIfx and
coming to the
On Monday, April 1, 2002, at 12:13 AM, flawed jai wrote:
if you succeed, i would be fascinated to hear what worked. i have 2
iifx's, and until i read your discussion i was resigned to jsut
accepting that they are strange beasts that need to be fed a delicate
diet. now i'm hoping maybe they
--- flawed jai [EMAIL PROTECTED] wrote:
wizard--I'm following this discussion with interest.
while i do not
understand every last thing you are talking about, i
had never heard of
converting the RAM on a IIfx before. i gather that
you are studying the
structure of how the RAM cips and
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