One other point to make.  There are also many wierdisms that are caused
by something professional techs call "static wounding."  This occurs
when a sensitive high density IC chip (or a single discrete transistor
for that matter) passes through a static field.  It also occurs when a
non static-protected person opens a sealed static bag and touches the
components inside.  Static sparks jumping from the person to the
component are also a sure sign that you don't need to waste your time;
go ahead and throw the component/device away.

What happens is that a moving static field (like the one that's on your
body 90% of the time if you're not grounded) passes through the IC
device, which induces voltage in the microscopic conductive traces. 
This can cause the energy thus generated to jump a nonconductor gap
across to the next nearest tracer.  This leaves a valley in the
nonconductor "wall" between the tracers, offtimes seeded with vaporized
tracer material.  Contgrats; with no prior experience, skill or intel
fab plant, you just created you own tracer.  That's right; you're just
that good.


The correct procedure to follow when you are working on your computer is
to wear a static wrist band, and to keep your computer components away
from nonconductor surfaces.  (read: carpet).  Anti static spray is not
reliable.  Static wrist bands are available from your local Radio
Shack.  To avoid electronic mea culpa and endless firehose quantities of
frustration, I recommend that anyone working on a peripheral or mobo
wear a grounded static wrist band until the box is closed up.  Touching
the case is not totally reliable, since you can generate several
thousand invisible static volts just by raising your arm, if you have
any sort of synthetic garment on.  In other words your static shadow
just regenerates in short order.


I'd venture to say that from what Ive seen, about 80% of all RMA's,
marginal functionality, failures, and most frustrations several months
after installation are due totally to improper handling. Read:
Laziness.  The problem is rampant (and I mean RAMPANT) in mom-pop
computer shops.  BEWARE of these.  Next time you walk into your local
computer store, go straight to the back without warning and surprise the
techs; specifically, see if they have their wristbands on when servicing
customer's equipment.  I've got money that says they won't have them on.

Typically I try to order my mobos from high volume internet shops on the
pacific coast so I can get the mobo right after it comes off the ship. 
I never trust one that's been handled by anyone other than me; that
keeps me from having to worry about looking backwards.  I always know
that my problem is somewhere ahead of me.  If that makes any sense. 
This goes for peripherals, too.  I've got a few suppliers that I trust.


As I said above, the requirement for static wounding only involves a
static field; this implies that you do NOT have to touch a component in
order to damage it.  All you have to do is pass your hand near the
component.  This is why static bags are there, and this is what they
prevent; they stop not just touch, but static fields as well.

Synopsis of above soapbox/wooden nickel contribution:  Correct procedure
for computer service work is to wear a grounded static wrist band.

Best Regards,

LX



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Kernel  2.4.8-26mdk     Mandrake Linux  8.1
Enlightenment 0.16.5    Evolution  1.02
Registered Linux User #268899 http://counter.li.org/
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