> ----Forwarded----
> From: cbrown@denalics.net ("Christopher E. Brown")
> Subject: Re: (PM) ram for PM3
> Message-ID: <Pine.LNX.4.10.9912131436220.12460-100000@borg.denalics.net>
> Newsgroups: livingston.portmaster-users
> >
> > Gold contact (*not* tin contact) FPM (Fast Page Mode) true
> > parity memory.
>
> Can someone explain why gold must be used in place of tin and how many
> days it takes for electrolysis to corrode the contacts? I've seen many
> a technical bulletin which insist on gold contacts but without any
> explanation.
Forgive the bad spelling, but it is an electrolytic reaction
between dissimilar metals.
Given 2 metals, and an electrical current the less noble metal
will give up material to the more noble metal.
On a boat in saltwater you can see a reaction between
aluminium and steel in days (this is why a buffer material is normally
used), in a memory system more than a few months.
Most of the failures I have seen were well after the year mark
when the buildup started causing memory errors.
---
As folks might have suspected, not much survives except roaches,
and they don't carry large enough packets fast enough...
--About the Internet and nuclear war.
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