Why ic pins ( on hdd / mboard ) are not covered by lacquer to avoid short circuit ?

[TE Cheah]

I think hdd & mboard makers don't want their products to last longer
than their warranty periods, so users must buy new models.
My mboards / dimms / hdd all have short circuits caused by carbon
in dust on ic / regulator 's pins, I never saw a dustproof casing on
sale.
Does any1 here put lacquer on his ic / regulator 's pins when these
are still new & dust free ?

 

[Ross Herbert]

:I think hdd & mboard makers don't want their products to last longer
:than their warranty periods, so users must buy new models.
:My mboards / dimms / hdd all have short circuits caused by carbon
:in dust on ic / regulator 's pins, I never saw a dustproof casing on
:sale.
oes any1 here put lacquer on his ic / regulator 's pins when these
:are still new & dust free ?
:

If your MB is covered in dust sufficicient to cause shorts across regulator pins
- actually it will most likely only short when the dust is moist - then I wonder
how much dust is clogging up your fans and other sensitive devices. You should
know that dust is the enemy of electronics and it is the user who has to take
all necessary steps to minimise the ingress of dust. When I see a tower PC
sitting on a carpetted floor I just know that this is a recipe for disaster.
Keep your PC on the table top (or at least 30cm above the floor) and you will
find that dust ingress will be minimal (providing it isn't in an abnormally
dusty environment).