28 Mar
2017
28 Mar
'17
7:42 p.m.
On Tue, Mar 28, 2017 at 01:00:41PM -0400, Brad Spencer wrote:
Arthur Krewat <krewat(a)kilonet.net> writes:
Hmm, so the 4/110 being VME is for sure correct, I had one of those when
I was at Sun. The 3/50, I just don't think it was VME. I believe they
made a version that was a single VME board but so far as I know that was
a different beast. I could be wrong, I googled a bit and couldn't figure
it out.
What I know for sure is, unlike a 4/110, you couldn't open up the case
and shove more VME stuff in there. If the 3/50 was a VME board I'm not
sure what the point was other than, perhaps, to reuse the same part in
a small case. I can't see Andy doing that, he was super cost sensitive.
Not according to this:
https://en.wikipedia.org/wiki/Sun-3
The 3/50 was indeed a "pizza box" according to this, but Brad Spencer's
images 7A and 7B he purports these are 3/50 boards:
http://anduin.eldar.org/~brad/sunstuff/ - and those are definitely VME
form-factor. Although, it's possible it uses only that "custom/private"
third connector on the VME backplane?
On 3/28/2017 11:38 AM, Dan Cross wrote:
> I *think* the 3/50 had a VME bus. As I recall, it was basically a
> single VME board mounted inside of a pizzabox case.
My understanding is that the 3/50 is indeed some sort of VME system, as
is the 4/110, with some address related oddities. But it has been a
very long time since I booted a 3/50 up... The 3/50 I have are in their
cases, I just opened them up for the pictures.