[rescue] Sun 3's... was Re: Need Sun 3/110 RAM and Battery

[Earl Baugh]

Well more Sun 3's than I  expected.   Does anyone use
them in regular day to day use?  I'm thinking of leaving mine on,
if I can find something useful to do with them (aside from playing hunt...
8-) )

From: Jochen Kunz <jkunz at unixag-kl.fh-kl.de>
> Subject: Re: [rescue] Need Sun 3/110 RAM and Battery
> To: The Rescue List <rescue at sunhelp.org>
>
>
> On Thu, 23 Aug 2007 12:29:25 -0400
> "Earl Baugh" <earl at baugh.org> wrote:
>
> > Actually I was thinking about how I might figure it out...
> > It will be tedious since I have to remove the board each time I
> > change a chip, but a good plan of attack.  It is a reproducable
> You may contact Peter from http://www.sun3zoo.de/ He may be able to
> determine the chip on base of the address.
>
> Is the RAM fault on the CPU board? You can use a Sun VME CPU board
> without VME card cage. I did this with a 3/160 board, that I dug out of
> a dumpster. I soldered some wires and an AT-PSU style power plug to the
> pins of a VME connector. That connector goes into VME socket 3 of the
> CPU, as that connector is for power only. Connect a generic PeeCee PSU
> and you can power up the "naked" CPU board on your workbench.
> --



Yes, the fault is on the CPU board.   Very interesting idea... have to see
if I could find
a spare VME connector (don't have any trashed VME card cages.... just have
two
3 slot ones both of which work... just don't have access to the board
without taking
them out.... even with the skins off..   I have some junk PC power
supplies...

I will contact Peter to see if he has a map of the chip to address.. thanks
for the
suggestion.



Earl