[rescue] Sun 3/160 and CADDStation 32 deskside

[Alan Perry]

> On Jun 3, 2025, at 06:12, Dave McGuire via rescue <rescue at sunhelp.org> wrote:
> 
> On 6/3/25 02:05, Alan Perry via rescue wrote:
>> I am restoring a ComputerVision CADDStation 32 deskside and have some questions.
>> 1. I am using a Sun 501-1164 (3/160) CPU board. It has 4M onboard. Will a Sun 32M memory board work with it? The memory is nominally a sun4 board but it works with my 3/260.
> 
>  No, that board will definitely not work with a 3/100 processor.
> 
>  It's not really a sun4 memory board; they were the correct (and only) memory boards for the 3/200 processor.
> 
>  For a 3/100 processor, you must use 501-1132 4MB memory boards. There's supposedly a 2MB version, but I've never seen one in the wild.
> 

The 32M board is not the only memory board for the 3/260. I got my first 3/260 from a guy who did he work on it from new and then acquired it when his employer retired it. It came with an 8M board.

One of the Sun hardware references lists memory board compatibility does not indicate that the 32M board is compatible with the 3/260 but does indicate it is compatible with a Sun 4 board, I think the 4/260. Note that when I say “32M board” and “3/260 [CPU board]”, that is shorthand for specific Sun part numbers.

The CV HW install manual that I have says that 4M and 8M boards can go in the optional memory slots. But, unless I got one in the 3/260 I acquired a couple weeks ago, I don’t have a (completely) working 8M board.

alan


>              -Dave
> 
> --
> Dave McGuire, AK4HZ
> New Kensington, PA
> 
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