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Date: | Tue, 25 Jan 2000 20:11:26 -0800 |
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----- Original Message -----
James Ruby asks:
> What tests could I perform to be sure there
> is no damage from the time it was in the case.
> Nothing strange has happened since then and
> the computer did not feel "hot" to the touch,
> but it was quite warm.
Your best bet would be to have a keen eye for
symptoms and develop good useage habits.
Most of the heat is generated by the processor
and battery (even if ac adapter is used).
The few a year I have to get into reflect this
as hot spots on the circuitry, which I resolder
to correct some charging and display related
problems.
Here's a few suggestions that might help extend
the life of your laptop:
1.) don't plug in your ac adapter by itself
as this will shorten its life. ( this is the most
common item replaced on laptops)
2.) don't close the display with laptop on
even if your display is powered down.
3.) don't move your display panel back
and forth frequently, especially while hot.
( this may increase chaffing on the mylar
cable joining the dc-dc converter and
your display. (this is a common problem
on Canon laptops)
4.) try to support your laptop with both
hands when lifting. (this will greatly
reduce flexing, especially on thin designs
where the battery makes up most of the
weight.)
5.) if your laptop becomes hot enough to
start the fan consider relocating to a cool
flat surface.
6.) as the battery gets older and less efficient
it will tend to put out more heat during the
charge/discharge cycle. (it should be replaced
to protect the laptop from the added heat
once efficiency has dropped below 66.66%.)
Example:
If a 1 hour battery provides less than 40 min's
after a full discharge/recharge and runs
exceedingly hot then it's due.
7.) If you use non-oem methods of cooling
such as gel paks keep in mind a change in
temp (delta T) of more than 10*C in 30
minutes can generate condensation.
8.) if you experience irregular charging or
humming it might be your wall outlet. I've seen
this happen when more than 8v p-p is present
between nuetral to ground.
-yui shin
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