On Sun, 18 Nov 2012 09:51:00 -0500, the renowned "Pete C."
wrote:


wrote:

On Sat, 17 Nov 2012 10:00:24 -0500, "Pete C."
wrote:


wrote:

I have restored function to computers by unplugging them from
electricity and unplugging and re plugging every connector in the
computer. Doing the unplug/re plug routine gives all the connectors a
new fresh connection. Corroded memory board contacts will keep the
computer from booting.

^ This. Whenever strange issues start to crop up with a machine that's
fairly old, powering it down and unplugging/replugging every connector a
few times wipes oxide buildup off the contacts and usually solves the
problem.
That was particularly true back in the days of the "model T"
computers - where all of the ICs were socketed - and only the best
used high quality screw machine? sockets. Every memory bit was a
separate chup - with tinned legs.

On today's computers, with gold plated instead of tinned connections,
it is EXTREMELY rare.

Nope. I've personally seen it on $$$ equipment with top quality gold
plated connectors. Reseat those connectors a few times and the problem
goes away.

Sometimes it's a cold solder joint somewhere that starts working again
when the board is flexed and the oxidation is temporarily wiped.
Chances are it will come back in either case.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
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