[Info-vax] Trying to boot a MicroVAX II with VMS 7.3

[Robert Jarratt]

"Steven Schweda" <sms.antinode at gmail.com> wrote in message 
news:56f7616e-ba67-4e3a-8de5-c2ebae89e023 at h28g2000yqd.googlegroups.com...
> totheedgeoft... at msn.com wrote:
>
>> I have a VAXstation 2000 with 12megs with VMS 7.3 running so memory
>> should not be a issue.
>
>   How did you manage that?  There should be 2MB on the main
> board, and I've never heard of a 10MB add-in board.  4MB,
> 12MB, and even a third-party 16MB, but not 10MB.  (Mine has
> 2MB+ 4MB, and the page-faulting is something depressing to
> watch.  Anyone with a 12MB card in the free-to-good-home
> category is welcome to contribute.)
>
>>  One way is to
>> look at the memory boards in the system. As I recall the M7622 was a
>> 16 meg board and the M7621 was 8 megs.
>
>   True, but wrong CPU.  My data say:
>
>   M7620 = KA650-AA/BA = microVAX III CPU (-AA full license,
>                         -BA workstation license), 90nS.
>   M7621 = MS650-AA = 8MB RAM for KA650
>   M7622 = MS650-BA = 16MB RAM for KA650
>
>   M7606-AA = KA630-AA = microVAX II with 1-Mbyte, [...]
>
>   M7607-AA = MS630-AA = 1-Mbyte RAM for microVAX II
>   M7608-AA = MS630-BA = 2-Mbyte RAM for microVAX II
>   M7608-BA = MS630-BB = 4-Mbyte RAM for microVAX II
>   M7609-AA = MS630-CA = 8-Mbyte RAM for microVAX II
>
>   I may have one of those 1MB boards hidden away in the
> museum.  So cute.

Regrettably I am not sure I know how much memory the machine has. I have yet 
to succeed in running any diagnostics. I do have two extra memory boards in 
the machine, they have MS630-B markings but I cannot tell if they are BA or 
BB, although I suspect they may be BB.

Regards

Rob