[rescue] sun 3/60 update

[Dan Moisa]

You guys are right about the 72 pin SIMMS - they are 32 bits instead of 8,
so that's a x4 reduction right there without messing with the address line
decoding, and so on. They just took 4 8bit and smashed it together, they
even have 4 CAS/RAS pairs and parity, which is brilliant. Proof is right
here:

https://www.ebay.com/itm/116438233217
"FutureWare SimmXtender SXT77-F 72-Pin SIMM RAM Memory Expansion Card" -
"Convert four 30-pin SIMMs into one 72-pin SIMM"

Thanks all for bringing it up. I'll take a look over the weekend but I
wanna use the time to clean up the github and milestone it.

Dan.

PS: Lemme tell you, netbooting NetBSD with only 4mb of RAM and the swap is
over 10mb network as well, things get pretty glacial. SunOS is definitely
way more thrifty.

On Thu, May 22, 2025 at 7:56 AM Dave McGuire via rescue <rescue at sunhelp.org>
wrote:

> On 5/21/25 23:07, Alexander Jacocks via rescue wrote:
> > And I’d second the suggestion to skip 30 pin SIMMs and use 72 pin SIMMs
> > instead. They are much easier to get in larger sizes. And, I’d bet that
> > 72 pin SIMM sockets are easier to get, as well.
>
>    I have a small stock of AMP 822030-3 72-pin SIMM sockets left over
> from a previous job, should be about 400 or so.
>
>              -Dave
>
> --
> Dave McGuire, AK4HZ
> New Kensington, PA
>
> _______________________________________________
> rescue list - http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org
>
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