23 Sep
2004
23 Sep
'04
11:16 p.m.
Pete Turnbull wrote:
The term LSI-11 refers to either the original set of
boards including
the M7264 which could be used to build a system, or more specifically
to the M7264 KD11-F processor card. A PDP-11/03 is, strictly speaking,
a DEC-packaged system, the early ones being an BA11-M box, or an 11V03
system in a BA11-N and with RX01 drives. LSI-11/2 is the later
processor card, used in BA11-N boxes to make some 11V03 and 11T03 (with
RL01 drives) systems.
Errr, my 11v03 has RX02s, thank you. Although it's very possible
they're an upgrade.
That is without doubt the prettiest computer I ever owned. My G5 is
close, but the PDP11V03-L beats it. :)
The reason I asked my question is just that I've
never seen or heard of
a CIS option for the 11/03, and I can't think where you'd put it.
There are no spare sockets on the board and not nearly enough of the
internal bus is brought out. Well, there's a spare socket on a basic
M7264 (the original quad board) and on a basic M7270 (the later and
more common LSI-11/2 dual-height board), but they're for the KEV11
(EIS/FIS) option. Most of the 11/03 processors I've seen have the
KEV11 already fitted.
OK, I just logged into my linux box at home and looked on the
inventory list. It's a DIBOL microm, and it's on the quad-height board;
M7264-YB.
I'm still going to lay eyeballs on the LSI-II when I get home,
because the "CIS" thing is ringing bells.
So, whilst willing to believe that CIS exists for an
11/03 if someone
has it, I think something else is much more likely :-) Of course, if
it does exist, I'd be very interested to know more about it!
Nah, it looks like it was just a brain fart.
Doc