[ale] final plea for help (more kernel panic info)

[jkinney at localnetsolutions.com (James P. Kinney III)]

Also, chips are temperature sensitive. As the temp rises, the elctrons
available to due the designed task increases until the average electron
is above the barrier energy and ,WHOOSH, a cascade of current happens
that makes no sense to the receiving buckets expecting only a few
million per second. So it sends a WTF?! and that get amplified until the
only data on the output pin is a very loud WTF?!?!?! And the system
panics and dies.

Spot cooling on a chip that is near the temperature failure point will
avoid that problem. Likewise, a localized heat source (tube within a
tube pumping near boiling water) is a great way to tip a chip over the
edge while keeping the rest of the board at operating temps. 


On Sat, 2003-01-04 at 11:17, Doug McNash wrote:
> It's a hardware thing.  Heat up the components and they 
> expand, cool down and they contract (ever so little) but 
> enough to short or open a circuit on a marginal solder 
> joint or internal chip connection.  The problem statement 
> describes 10-30 min of running time before failure.  So 
> some part of the system failing when it gets warm.  The 
> hair dryer just speeds the process and lets one isolate 
> the component.
> 
> >Where the hell do you come up with these ideas?  Is there 
> >some sort of
> >"Home Remedies for the PC" book I've overlooked?  ;-p
> >
> >John
> >
> >> Final test, get a hair
> >> dryer and a can of compressed air. with the box running 
> >>, warm the board
> >> from the back until it dies, reboot, use the air cans to 
> >>cool the
> >> chipset and test again. If cooling the chipset with a 
> >>warm board
> >> otherwise runs well, the chipset is bad.
> 
> --
> Doug McNash
> dmcnash at smyrnacable.net
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://www.ale.org/mailman/listinfo/ale
-- 
James P. Kinney III   \Changing the mobile computing world/
President and CEO      \          one Linux user         /
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GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics) <jkinney at localnetsolutions.com>
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