Question about memory boards used on VAX 11/7xx

[Patrick Finnegan]

On Monday 27 December 2004 05:35, Pierre Gebhardt wrote:
> Hi all,
>
> I got 2 Memory Boards (National semiconductor) several weeks ago
> (each 1MB). Somerwhere on the net, someone says, that these can be
> used in VAX 11/7xx. Can I use these boards in my PDP 11/24, too ?
>
> I don't know yet, if 32bit boards can be used on 16bit machines and
> I'm afraid of putting them in and seeing some smoke when turning on
> the machine...

I doubt it.  The 11/24 uses UNIBUS memory, and the 11/78x and 11/750 
both have a special memory bus and controller (or multiple 
controllers).  I don't know enough about the 11/730 (& 11/725) to say 
"definitely no" but it seems quite unlikely that they used straight 
UNIBUS memory.

Pat
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