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Date:	Thu, 1 Jul 2004 22:26:50 PDT7
From:	Tom Brown <thombrown@san.rr.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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Peter has some good ideas...
Re: Heat
My 3 36 GiB SCSI drives are in a Bay-Cool III drive cooler from PC Power
& Cooling. See:
http://www.pcpowercooling.com/products/cooling/drive/bay-cool/index_bc3.htm

Re: Power supplies
I use a 475 watt supply from the same source. The high power level is
due to the fact that I run a Tyan Tiger MP S2460 motherboard (SMP). PC P
& C supplies are some of the best around.

http://www.pcpowercooling.com/products/power_supplies/

Again, HTH

Peter Skye wrote:
> 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

--
Tom Brown
thombrown at san dot rr dot com
Member SCOUG, V.O.I.C.E. & SDAA
running eComStation GA + FP 3
eCS system uptime is 0 days 00:42 hours

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