VAX tests? (Mouse)

Johnny Billquist bqt at
Sun Mar 15 19:54:26 CDT 2015

On 2015-03-16 00:59, Jon Elson wrote:
> On 03/15/2015 05:05 PM, Mouse wrote:
>> [Seen thanks to off-list assistance - thank you!]
>>> Brief background: Real VAXes had real diagnostics. MicroVAXes had
>>> diagnostic$
> I'm pretty sure there was a TK-50 diagnostics tape (I never had one, but
> saw the DEC
> techs use them).  There may also have been floppies in the very early
> MicroVAX
> days.

That would be the MDM. And yes, I think it existed for both RX50 and 
TK50, but I've only used the TK50 version myself.

I still have the TK50, but I wonder if my TK50 drive is operational...

I can't remember how much CPU diagnostics is on that tape. My 
recollection is that it's more about testing peripherials, but there 
should be some basic tests in there as far as I remember.

> There was a set of CPU diags on floppies that came with our first 780.
> I think
> we also had a set of additional diagnostics on 9-track tape if the CPU
> was fully operational.

That won't help. This would be the diagnostic supervisor, which do not 
run on MicroVAXen.


Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol

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