CPU upgrades, pt. II

From: allisonp <allisonp_at_world.std.com>
Date: Mon Apr 17 20:23:04 2000

> > There is only one SIMM socket. What is the limit for ram (max)?
> >Where can I get something bigger than 1mb?
>
>Interesting, my Model 50 has a pair of SIMM sockets on the planar. They
look
>more like 30-pin SIMMs than 72-pin ones, but I haven't taken them out to
>check yet. Also, I've never seen SIMMs like these before - the PCB is a
>brown/beige colour, and the RAM chips are in small silver "cans" rather
than
>the usual black epoxy.


Ok, there are two merged messages there to start with.

Also there are two versions of the PS/2M50 one is like yours and uses two
simms. the other is like mine a 50Z that uses one. the 50z is also 286
powered but was designed for no memory wait states. It's a tiny bit faster.
At onepoint I had working examples of both, I kept the 50Z and geve the
other away.

>Anyway, I suspect you'll find that the limit for RAM (on the
>motherboard/planar/whateveryouwanttocallit) will be 2Mb. IBM used to make
>these wierd, double sided, 2Mb 72-pin SIMMs specifically for some models in
>the PS/2 family.


Thats what some one else already said.

>I remember these SIMMs distinctly since around 10 years ago they used to
>sell for practically nothing on FidoNet as they were of no use whatsoever
in
>anything but a PS/2.


Figures.

Allison
Received on Mon Apr 17 2000 - 20:23:04 BST