Re: Sun Rem 2mb card (heavily modified)

From: Ian Primus <ian_primus_at_email.domain.hidden>
Date: Sat, 5 Mar 2011 08:14:56 -0800 (PST)

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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Received on 2011-03-05 18:20:48

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