Jay West wrote:
Brent wrote...
> Going by the card list presented by the
seller and what can be discerned
> from
> the picture of the card cage, the unit is missing the core memory boards.
> Other memory module boards for what should be 16-24 KWords are present
> but the
> actual core boards appear to have been pulled.
I didn't look that close. Brent is of course right, memory seems to be
missing.
Something else caught my eye upon re-visiting that ad. Either that machine
never ran HP2000 TSB, or someone has pulled a lot more cards than just the
memory. I'm quite certain that a system with those cards could not run TSB
as is.
My guess is either someone pulled lots of I/O cards, or, the seller did a
quick google search on 2116 and found some mention of TSB so he assumed it
was a TSB box. Not necessarily at all.
I'm really not familiar with the hardware requirements for TSB but what about
the possibility of it being the I/O processor half of a dual-processor
configuration? Wasn't there a TSB which used two 2116's, one for computation
and one for I/O?
Along with the two mux sets, there are two GND-TRUE IN/OUT cards in the I/O
slots which might(?) be for the interconnect to the other processor. Although
it does seem a little strange that the extended instruction set cards are present,
and the amount of memory which would be implied by the remaining memory module
cards.
With that said, the "I/O BUSS LOADER" (sic) card is also missing.
Bob Shannon informed me a while ago that there is a company still retailing
the core memory module cards, but I have no idea of the price.