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Re: AS200 SIMM sockets (was Re: Multia memory/batery .. )



I just looked inside one of my AS200's, and it looked like the PCI/ISA slots were gold plated, but it wasn't real obvious that the SIMM sockets were gold. I couldn't see the SIMM's themselves.

I've always been puzzled by this subject. I can remember in ancient times when I started building a few single board computers from bare boards. The guys who were really intense at the time (mostly SS-50 bus believers) swore by all gold sockets as a way to avoid bad connections. This was the mil spec at the time. I was always suspicious that only after the computer explosion and chips were in short supply did the vendors warn everybody about the dangers of using gold connectors with tin chips instead of the tin sockets they happened to have in stock. I personally don't put much stock in the dissimilar metal theory, since the whole reason for using the gold was that it is electrochemically inert (at least thats what I learned in my graduate electrochemistry course).
 

B. James Phillippe wrote:

Hello,

        With the recent discussion about gold vs. tin SIMM and socket
plating, my curiousity is raised about the AlphaStation 200.  Does anyone
know if the SIMM sockets in it are tin or gold?  Also, I would assume that
the memory which was shipped with it (16M installed and 16M upgrade kit)
would be of the same plating type, but.....?  I have one, but I do not have
physical access to it at the moment.

thanks,
-bp
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B. James Phillippe      . bryan@terran.org
UNIX Software Engineer  . http://www.terran.org/~bryan
Member since 1.1.59     . finger:bryan@earth.terran.org
MOTM: Waiting for the DSL to go in :/

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