On Nov 23, 22:34, jeff.kaneko_at_juno.com wrote:
On Thu, 23 Nov 2000 23:54:35 GMT pete_at_dunnington.u-net.com (Pete
Turnbull) writes:
> > I've found an HP board, which has "HP 03812L" and then "98574-66513"
> > on it.
> > I think this is a part for an HP9000 system, more precisely a "68040
> > EMULATION PROCESSOR". Is this something you can plug in in place of
> > a real
> > 68040, and if so might it work in anything other than an HP9000?
> Is this thing L-Shaped? If it is, then this is the 'l-board'
> that goes into Hp 9000/375 (I have one of these sitting in my
> garage).
Yes, it is. About 7 1/2" by 8", with a 5" x 4" chunk cut out.
> Anyways, many of these were swapped out in favor of a *real*
> 68040 running at 25 or 33 Mc. HP used these boards because
> (presumably) they had their 68040 system board laid out and
> ready to go but Moto didn't quite have the silicon yet.
>
> SO they outfitted the 9000/375 with this kludge (that used a
> 68030), and the later 380's were the same hardware with the
> real processor installed, instead of the L-board.
That sounds plausible. Thanks for the info.
> I would be really curious to know if this thing functions
> as an '040 in other systems . . .
Well, if I get the chance, I'll try it. I wouldn't be too hopeful, though;
partly because it's quite large, and partly because it's been lying around
without any antistatic protection for months, and has been handled by
several people in that time.
--
Pete Peter Turnbull
Network Manager
Dept. of Computer Science
University of York
Received on Fri Nov 24 2000 - 03:32:07 GMT