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Date:	Thu, 1 Jul 2004 21:50:06 PDT7
From:	Peter Skye <pskye@peterskye.com >
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: On Thin Ice

Content Type: text/plain

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J. R. Fox wrote:
>
> I have had a problem like this at several-month intervals.
> Previously, it has stabilized and then things would be quiet
> for several months more.

I've had a number of these types of symptoms over the years, and most of
them were due to one of the following:

-- 1. Heat. Leaving the case off can help. Sometimes the fan bearings
get dirty and spin slow. Sometimes the machine is in direct sunlight or
near some other source of heat. Sometimes the case is cramped between
things like desks and file cabinets so the heat can't escape from the
case. Is the case hot anywhere when you move your hand around on it?
Are any of the drives "too hot" when you touch them? Do you have enough
chassis space to leave empty bays between the drives for better
ventilation?

-- 2. Power. As the power supply gets older it may not be able to
supply quite enough current. Try a heavy duty power supply. I know you
don't have an oscilloscope so I'm not gonna suggest that you watch the
power . . .

-- 3. Dirty (oxidized) connectors. Pulling off the cables and pushing
them back on a few times makes everything work okay for a few more
weeks; when the problem occurs again you pull off the cables and push
them back on again, ad infinitum. I've also had an occasional bad cable
where either one of the ribbon wires has a problem (flexing the cable
while the system is running causes a failure) or the connector isn't
making a good connection with the cable (snip off the connector and
crimp on a new one). Try wiggling the cables around while the machine
is running and see if it fails.

Good luck.

- Peter

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