Re: Sun Rem 2mb card (heavily modified)

Thanks Ian,
I've been chatting with James about this board, and he believes it's a prototype, and the wires and added components were to actually get this early prototype to work. Comparing what I have to photos of the production 2mb board off the net, they are indeed very different. The production version sports "Rev B" printed on the board where as my card does not. It's certainly an interesting piece of hardware to own, but I'm not sure if I want to put it in my machine. I'm a little apprehensive.

Phi

On Mar 6, 1:14Êam, Ian Primus <ian_pri..._at_email.domain.hidden> wrote:
> On Mar 5, 6:51Êam, Nama <forums6..._at_email.domain.hidden> wrote:
>
> > I mentioned in a previous thread that I had a Sun Rem 2mb card that
> > had been heavily modified. I have posted pictures here:
>
> >http://web.me.com/lord_philip/other_computers/2mb_Sun_Rem_board.html#...
>
> > If anyone has any thoughts as to what this mod does I'd love to hear
> > them.
>
> It *looks* like someone was trying to reduce power supply noise/sag
> and improve reliability. It's kind of hard to tell from the pictures,
> but most of the wires go to power and ground. The capacitors go
> between power and ground. Note how the 30 pin sockets have thicker
> wires added for the power (Pins 1 and 30), and ground (strips down the
> middle). And larger caps were installed to filter noise at the RAM.
>
> Perhaps someone was having problems with crashes, was trying to
> bulletproof the board. Or, perhaps there was something inadequate in
> the design of the board. I don't know. But I'd leave it alone and just
> see if it works - it was *probably* done for a reason.
>
> -Ian

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