Trojan Zombie

[gufus]

Hello, David!

You wrote on Sun, 9 May 2010 16:43:48 -0400:


| For a blade of a fan to be impacted by air pressure from cannister of
| compressed air the blades would have to be of pie tin grade aluminum.
| There just isn't that mch force.
|
I just put a tooth pick in the fan grill (to hold the fan) then air clean
toward the heat sink.

 

[David H. Lipman]

From: "gufus" <[email protected]>

| Hello, David!

| You wrote on Sun, 9 May 2010 12:07:40 -0400:

||> I bought a cheap feather duster. I use it with just a touch of spray
||> furniture polish (just a light spray, to just give it enough oil to pick

|| I wouldn't use any "furniture polish" as you don't know what chemicals
|| are used which may cause corrosion of electronics.

| Furniture polish?
| Egads.....

Exactly.

 

[David Kaye]

Oil will transfer to the fan causing it to collect MORE dust more
quickly, and I say this from 30 years of experience.

Did I say anything about touching a fan with a feather duster? I did not.

 

[David Kaye]

If duster-can air "may bend the delicate fins on the fan", then the
damned fan's too delicate to be in a laptop.

Welcome to the world of $300 laptops.

 

[Leythos]

In your 30 years experience you could not learn how to blow air out of your
mouth without spitting?

Like most of your BS, you didn't take away what you should have. The
discussion is about PEOPLE doing stupid things - like blowing using the
mouth, with all the MOIST AIR as well as sometimes spittle.

 

[gufus]

Hello, David!

You wrote on Mon, 10 May 2010 08:27:37 GMT:

DK>
FL>> If duster-can air "may bend the delicate fins on the fan", then the
FL>> damned fan's too delicate to be in a laptop.
DK>
DK> Welcome to the world of $300 laptops.

I paid over $1.000 6 years ago for a Toshiba A30

 

[Leythos]

Hello, David!

You wrote on Mon, 10 May 2010 08:27:37 GMT:

DK>
FL>> If duster-can air "may bend the delicate fins on the fan", then the
FL>> damned fan's too delicate to be in a laptop.
DK>
DK> Welcome to the world of $300 laptops.

I paid over $1.000 6 years ago for a Toshiba A30

My Toshiba and other cheap < $400 laptops don't have weak fan blades.

 

[David Kaye]

I paid over $1.000 6 years ago for a Toshiba A30

Then you probably won't have a laptop with cheaply made fan blades that bend
under a gust of compressed air -- which was my point.

 

[Dustin Cook]

(e-mail address removed) (David Kaye) wrote in

Most people are not going to be lugging an air compressor around; and
why should they when a simple lips to the out-hole and a few puffs
will dislodge the dust?

I haven't seen any compressed air cans with extremely high PSI. They seem
to work fine for blowing out the cooling system on laptops.

I have done this countless times and blown out a good deal of dust, so
much so that formerly hot running computers now run cool. You're
operating from theory; I'm operating from real life experience.

Hmm, I too am operating from real life experience...I've been able to
remove much more dust (sometimes, not requiring me to disassemble the
machine if it's bad) with an air can than I ever could by blowing into
the fins. Your breath doesn't have that much force and isn't going to
dislodge anything but the largest lightest of particles and debrees.

Yeah, it's not elegant, but a lot of repairs are not elegant. I
learned this from a car body shop when I noticed that people often
fixed bumpers by removing them and then jumping on them. Of course,
never show the inelegant fix to the customer...

That's a bit redneck way of fixing something, don't ya think?

 

[Dustin Cook]

In your 30 years experience you could not learn how to blow air out of
your mouth without spitting?

Who said anything about spitting? Your hot air, no pun intended contains a
large amount of moisture.

 

[Dustin Cook]

From: "David Kaye" <[email protected]>



| I recommend against using compressed air for a laptop because I feel
| the pressure is too great and may bend the delicate fins on the fan.
| This is why I recommend gently blowing into the air output holes,
| since it's far easier to control one's breath than it is a cannister
| full of compressed air. A few puffs can dislodge a lot of gunk.



| I bought a cheap feather duster. I use it with just a touch of spray
| furniture polish (just a light spray, to just give it enough oil to
| pick up the dust. With this I can gently pull the plumes along
| various circuit boards, around components, under the HD bay, etc., to
| pick up a *lot* of gunk from inside the chassis. Then a rigorous
| shake of the duster will dislodge the dust.


The air pressure from a cannister of compressed air will not "bend the
delicate fins on the fan" (blades) or the fins of the heat sink.

I wouldn't use any "furniture polish" as you don't know what chemicals
are used which may cause corrosion of electronics.

I know many lcd panels will die shortly after being exposed to furniture
polish.

 

[Dustin Cook]

(e-mail address removed) (David Kaye) wrote in

All I can say is that I'm operating from personal experience. I used
a can of compressed air and a couple puffs was enough to bend a fan
blade so that it woudn't even turn.

I can't say as I've ever seen this issue. Short of the blade coming in
contact with something, even a bent blade will spin. If the motor
appeared locked up, I'd say the bearings were bad; likely due to
excessive overheating conditions.

Again, I'm saying to just LIGHTLY spritz the feather duster, NOT
saturate it. The idea is to give the dust something to hold onto.
Some feather dusters have enough oil on them naturally that this isn't
necessary, but some don't have enough natural oil to do so.

Oil is very bad directly on electronics man.. Corrosive as hell for them.

I'm talking from personal experience. The computer I'm using at this
moment I dusted in this manner about 2 years ago and everything is
working fine. In fact, SpeedFan shows that all 4 temperature sensors
are operating cool -- 34, 48, 34, 33 degrees Celsius. The last time I
looked inside, I didn't see anything odd about any components, either.

How many computers have you professionally serviced in the last year? As
you speak from personal experience, is this an isolated incident or ?

 

[Dustin Cook]

Oil is very bad directly on electronics man.. Corrosive as hell for
them.

Not to mention a good source of static generation; as oil will let the dust
particles attach to everything powered up.. Electronics tend to generate
a nice magnetic field that brings the dust to them. Oiling them is only
going to ensure the dust sticks and builds up a nasty film; trapping even
more heat and killing the electronics even sooner.

 

[David Kaye]

Who said anything about spitting? Your hot air, no pun intended contains a
large amount of moisture.

As if a couple puffs of breath into an already hot vent hole is going to wreck
anything. Whatever moisture is in the breath will evaporate quickly.

You folks simply don't like what I said because it's not politically correct.
It's a simple, handy fix, inelegant as all get-out, but still a simply, handy
fix.

 

[David Kaye]

Electronics tend to generate
a nice magnetic field that brings the dust to them.

Nice try but magnetism does not attract dust. If that were the case, every
power cord would be covered with dust

Oiling them is only
going to ensure the dust sticks and builds up a nasty film; trapping even
more heat and killing the electronics even sooner.

Another stupid statement. I said nothing about "oiling" anything. I said a
short "spritz" onto a feather duster, enough to cause the dust to stick to it
as I make a quick sweep of the case, the back vent of the power supply, the
area under the HD bay, etc.

Okay, another option for those of you who are thoroughly disgusted by my
suggestions, let me substitute something else for the feather duster: a
microfibre towel. They sell these at Walgreen's for about $1 apieace. You
don't need to put ANYTHING on the cloth because the dust will cling to the
cloth. Then just shake out the cloth. OKAY, SATISIFED?

 

[David H. Lipman]

From: "Dustin Cook" <[email protected]>


| Not to mention a good source of static generation; as oil will let the dust
| particles attach to everything powered up.. Electronics tend to generate
| a nice magnetic field that brings the dust to them. Oiling them is only
| going to ensure the dust sticks and builds up a nasty film; trapping even
| more heat and killing the electronics even sooner.


You said...
"Electronics tend to generate a nice magnetic field that brings the dust to them..."

No. It is...
"Electronics tend to generate a nice electrostatic field that brings the dust to them..."

 

[Leythos]

As if a couple puffs of breath into an already hot vent hole is going to wreck
anything. Whatever moisture is in the breath will evaporate quickly.

You folks simply don't like what I said because it's not politically correct.
It's a simple, handy fix, inelegant as all get-out, but still a simply, handy
fix.

HA HA HA - there is nothing NOT PC about your method, it just doesn't
work well in most cases. Sure, if all you have is loose dust bunnies,
but when you take a look at a computer that's sat on a carpeted floor in
a home where the owner doesn't vac for weeks at a time, has two pets,
etc... You can't get enough pressure to blow out enough dust, at least
not with the common mouth - but you seem to have more pressure than most
of us

 

[Leythos]

Another stupid statement. I said nothing about "oiling" anything. I said a
short "spritz" onto a feather duster, enough to cause the dust to stick to it
as I make a quick sweep of the case, the back vent of the power supply, the
area under the HD bay, etc.

If the duster comes in contact with ANYTHING, as it must to remove dust,
the oil coating will transfer to the items it makes contact with.

 

[FromTheRafters]

Not to mention a good source of static generation; as oil will let the
dust
particles attach to everything powered up.. Electronics tend to
generate
a nice magnetic field that brings the dust to them. Oiling them is
only
going to ensure the dust sticks and builds up a nasty film; trapping
even
more heat and killing the electronics even sooner.

Yes, but it is more the electrostatic (electric) fields that attract
debris. <w>

Dry process (xerography) photocopiers cause problems for some critical
equipment. Wet process copiers are used in these circumstances. It is
the dry carbon molecules floating about that get attracted by the E
fields.

I'm not saying that other debris isn't attracted to magnets however.

 

[FromTheRafters]

Nice try but magnetism does not attract dust.

That depends on the dust.

Consider that a large percentage of dust comes from iron bearing
asteroids (meteoroids).