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Tip: blowing out fans



 
 
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  #1  
Old November 11th 19, 11:11 PM posted to alt.windows7.general,alt.comp.os.windows-10
T
external usenet poster
 
Posts: 4,600
Default Tip: blowing out fans

Hi All,

Tip: If your fans are noisy, blowing them out won't help
things. It is time to replace them.

If your fan is clogged, DO NOT USE a shop air gun
to blow it out! Use a can of compressed air
that states it is for electronic equipment and
capture the fan blades so they do not rotate
when you hit them with air. Shop air guns
have oils and other stuff yo do not want all over
your circuit boards and their air flows can cause
static electricity build ups.

Fans, when ran backwards with external air, become
generators and send current back down their wires,
which can damage your motherboards. And certainly
damage any PWM circuitry on the fan. So do not
let the blades spin when blowing them out. Yes,
it is fun to watch them whirl -- don't do it anyway.

-T








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  #2  
Old November 11th 19, 11:41 PM posted to alt.windows7.general,alt.comp.os.windows-10
VanguardLH[_2_]
external usenet poster
 
Posts: 10,881
Default Tip: blowing out fans

T wrote:

Tip: If your fans are noisy, blowing them out won't help
things. It is time to replace them.


Not wholly correct. If the fans are dusty, especially due to the caked
on dust due to impact, and because the air is not filtered, the fan can
get out of balance with dust and grime. This isn't dust floating and
settling due to gravity. It's dust slamming into fan blades, and dust
is not clean. It will stick.

Even a new fan will vibrate if it is unbalanced. After blowing out with
blades/hub fixed, use an ear swab to scrub the blades on front and back
to dislodge the caked on dust. Then blow out again. Blow, scrub, blow
again.

I don't remember hearing of anyone using an air compressor to dust out a
computer. They sell compressed air cans for that.
  #3  
Old November 12th 19, 12:15 AM posted to alt.windows7.general,alt.comp.os.windows-10
Rene Lamontagne
external usenet poster
 
Posts: 2,549
Default Tip: blowing out fans

On 2019-11-11 4:41 p.m., VanguardLH wrote:
T wrote:

Tip: If your fans are noisy, blowing them out won't help
things. It is time to replace them.


Not wholly correct. If the fans are dusty, especially due to the caked
on dust due to impact, and because the air is not filtered, the fan can
get out of balance with dust and grime. This isn't dust floating and
settling due to gravity. It's dust slamming into fan blades, and dust
is not clean. It will stick.

Even a new fan will vibrate if it is unbalanced. After blowing out with
blades/hub fixed, use an ear swab to scrub the blades on front and back
to dislodge the caked on dust. Then blow out again. Blow, scrub, blow
again.

I don't remember hearing of anyone using an air compressor to dust out a
computer. They sell compressed air cans for that.


I have with precautions.

1: Turn down pressure regulator to about 20 PSI
2: Hold the blow gun at a fair good distance from the computer
3: lock down all fans from turning
4: do this Outside, not in the house or shop
5: Use common sense and good judgement

Rene

  #4  
Old November 12th 19, 12:18 AM posted to alt.windows7.general,alt.comp.os.windows-10
Rene Lamontagne
external usenet poster
 
Posts: 2,549
Default Tip: blowing out fans

On 2019-11-11 5:15 p.m., Rene Lamontagne wrote:
On 2019-11-11 4:41 p.m., VanguardLH wrote:
T wrote:

Tip: If your fans are noisy, blowing them out won't help
things.Â* It is time to replace them.


Not wholly correct.Â* If the fans are dusty, especially due to the caked
on dust due to impact, and because the air is not filtered, the fan can
get out of balance with dust and grime.Â* This isn't dust floating and
settling due to gravity.Â* It's dust slamming into fan blades, and dust
is not clean.Â* It will stick.

Even a new fan will vibrate if it is unbalanced.Â* After blowing out with
blades/hub fixed, use an ear swab to scrub the blades on front and back
to dislodge the caked on dust.Â* Then blow out again.Â* Blow, scrub, blow
again.

I don't remember hearing of anyone using an air compressor to dust out a
computer.Â* They sell compressed air cans for that.


I have with precautions.

1: Turn down pressure regulator to about 20 PSI
2: Hold the blow gun at a fair good distance from the computer
3: lock down all fans from turning
4: do this Outside, not in the house or shop
5: Use common sense and good judgement

Rene


I forgot to add, as Edwin Felty noted

Use an Oilless compressor

Rene
  #5  
Old November 12th 19, 12:19 AM posted to alt.windows7.general,alt.comp.os.windows-10
T
external usenet poster
 
Posts: 4,600
Default Tip: blowing out fans

On 11/11/19 2:41 PM, VanguardLH wrote:
T wrote:

Tip: If your fans are noisy, blowing them out won't help
things. It is time to replace them.


Not wholly correct. If the fans are dusty, especially due to the caked
on dust due to impact, and because the air is not filtered, the fan can
get out of balance with dust and grime. This isn't dust floating and
settling due to gravity. It's dust slamming into fan blades, and dust
is not clean. It will stick.

Even a new fan will vibrate if it is unbalanced. After blowing out with
blades/hub fixed, use an ear swab to scrub the blades on front and back
to dislodge the caked on dust. Then blow out again. Blow, scrub, blow
again.

I don't remember hearing of anyone using an air compressor to dust out a
computer. They sell compressed air cans for that.



Never seen a dusty fan make noise. I will take your word that
you have seen them. It has always been failing bearings
causing the noise. Add on video cards are the worst culprit
for crappy fans. Intel's boxed CUPS fans are the best.
I use PWM fans on all my custom builds. Keeps the fan noise
down, but still moved enough air to keep the temperature down.

Oh, I take that back. On PWM and other temp controlled fans,
as the blades lose efficiency, the fans go faster to try to make up and
cause an annoying fan whirring noise.

What my customers complain about is bearing rumble. And I
have to be really afraid when they say "it went away all
on its own". I remote in and check their temperature
with Fan Speed

I work for several machine shops and auto repair facilities,
as well as classic car hobbyists. If the fan starts making
noise, out comes the 100,000,000 PSI air compressor! Oh Boy!

Make sure you capture the fan blades when blowing on them.

And if you don't get a bobble when a fan stops after
spinning it with your finger, replace it.



  #6  
Old November 12th 19, 12:32 AM posted to alt.windows7.general,alt.comp.os.windows-10
T
external usenet poster
 
Posts: 4,600
Default Tip: blowing out fans

On 11/11/19 3:15 PM, Rene Lamontagne wrote:

1: Turn down pressure regulator to about 20 PSI


Make user the air is clean and not full of oil.
it does not take much to mess up.

I had a customer spray his computer with WD 40
years ago. Oh Boy!


4:Â*doÂ*thisÂ*Outside,Â*notÂ*inÂ*theÂ*houseÂ*orÂ*s hop


When I blow out a computer at a customer site, I
always take them outside. It tell the customer
that is how they can tell I am a married man.
Cracks the ladies up. The guys give me that
pained look.

  #7  
Old November 12th 19, 12:33 AM posted to alt.windows7.general,alt.comp.os.windows-10
T
external usenet poster
 
Posts: 4,600
Default Tip: blowing out fans

On 11/11/19 3:18 PM, Rene Lamontagne wrote:
On 2019-11-11 5:15 p.m., Rene Lamontagne wrote:
On 2019-11-11 4:41 p.m., VanguardLH wrote:
T wrote:

Tip: If your fans are noisy, blowing them out won't help
things.Â* It is time to replace them.

Not wholly correct.Â* If the fans are dusty, especially due to the caked
on dust due to impact, and because the air is not filtered, the fan can
get out of balance with dust and grime.Â* This isn't dust floating and
settling due to gravity.Â* It's dust slamming into fan blades, and dust
is not clean.Â* It will stick.

Even a new fan will vibrate if it is unbalanced.Â* After blowing out with
blades/hub fixed, use an ear swab to scrub the blades on front and back
to dislodge the caked on dust.Â* Then blow out again.Â* Blow, scrub, blow
again.

I don't remember hearing of anyone using an air compressor to dust out a
computer.Â* They sell compressed air cans for that.


I have with precautions.

1: Turn down pressure regulator to about 20 PSI
2: Hold the blow gun at a fair good distance from the computer
3: lock down all fans from turning
4: do this Outside, not in the house or shop
5: Use common sense and good judgement

Rene


I forgot to add, as Edwin Felty noted

Use an Oilless compressor


What? No WD 40 ?????

I case anyone is taking notes, DO NOT USE WD40 !!!
That was SARCASM!!!!



  #8  
Old November 12th 19, 02:00 AM posted to alt.windows7.general,alt.comp.os.windows-10
T
external usenet poster
 
Posts: 4,600
Default Tip: blowing out fans

On 11/11/19 3:15 PM, Rene Lamontagne wrote:
On 2019-11-11 4:41 p.m., VanguardLH wrote:
T wrote:

Tip: If your fans are noisy, blowing them out won't help
things.Â* It is time to replace them.


Not wholly correct.Â* If the fans are dusty, especially due to the caked
on dust due to impact, and because the air is not filtered, the fan can
get out of balance with dust and grime.Â* This isn't dust floating and
settling due to gravity.Â* It's dust slamming into fan blades, and dust
is not clean.Â* It will stick.

Even a new fan will vibrate if it is unbalanced.Â* After blowing out with
blades/hub fixed, use an ear swab to scrub the blades on front and back
to dislodge the caked on dust.Â* Then blow out again.Â* Blow, scrub, blow
again.

I don't remember hearing of anyone using an air compressor to dust out a
computer.Â* They sell compressed air cans for that.


I have with precautions.

1: Turn down pressure regulator to about 20 PSI
2: Hold the blow gun at a fair good distance from the computer
3: lock down all fans from turning
4: do this Outside, not in the house or shop
5: Use common sense and good judgement

Rene


Okay, I can't resist asking. Do you play with the blow gun afterwards:
spray off the bench, the floor, the cat, the
wife? Spraying the wife can be dangerous. The cat will
just condescend about the quality of the hired help.

:-)

  #9  
Old November 12th 19, 02:20 AM posted to alt.windows7.general,alt.comp.os.windows-10
Rene Lamontagne
external usenet poster
 
Posts: 2,549
Default Tip: blowing out fans

On 2019-11-11 7:00 p.m., T wrote:
On 11/11/19 3:15 PM, Rene Lamontagne wrote:
On 2019-11-11 4:41 p.m., VanguardLH wrote:
T wrote:

Tip: If your fans are noisy, blowing them out won't help
things.Â* It is time to replace them.

Not wholly correct.Â* If the fans are dusty, especially due to the caked
on dust due to impact, and because the air is not filtered, the fan can
get out of balance with dust and grime.Â* This isn't dust floating and
settling due to gravity.Â* It's dust slamming into fan blades, and dust
is not clean.Â* It will stick.

Even a new fan will vibrate if it is unbalanced.Â* After blowing out with
blades/hub fixed, use an ear swab to scrub the blades on front and back
to dislodge the caked on dust.Â* Then blow out again.Â* Blow, scrub, blow
again.

I don't remember hearing of anyone using an air compressor to dust out a
computer.Â* They sell compressed air cans for that.


I have with precautions.

1: Turn down pressure regulator to about 20 PSI
2: Hold the blow gun at a fair good distance from the computer
3: lock down all fans from turning
4: do this Outside, not in the house or shop
5: Use common sense and good judgement

Rene


Okay, I can't resist asking.Â* Do you play with the blow gun afterwards:
spray off the bench, the floor, the cat, the
wife?Â* Spraying the wife can be dangerous.Â* The cat will
just condescend about the quality of the hired help.

:-)


NO, NO, NO, Never ever play with a blow gun!!!!!!!!!!

Blowing air from a nozzle can penetrate the skin and cause an air
embolism bubble in your veins which will go to your heart and kill you
as surely as a gun, I have known it to happen to a mechanic here in
Winnipeg some years back.

Rene

  #10  
Old November 12th 19, 02:36 AM posted to alt.windows7.general,alt.comp.os.windows-10
Char Jackson
external usenet poster
 
Posts: 10,449
Default Tip: blowing out fans

On Mon, 11 Nov 2019 19:20:28 -0600, Rene Lamontagne
wrote:

NO, NO, NO, Never ever play with a blow gun!!!!!!!!!!

Blowing air from a nozzle can penetrate the skin and cause an air
embolism bubble in your veins which will go to your heart and kill you


I believe you meant to say lungs, versus heart. It sounds like you're
describing a pulmonary embolism.

as surely as a gun, I have known it to happen to a mechanic here in
Winnipeg some years back.


Agreed, PE's are risky business.

  #11  
Old November 12th 19, 02:59 AM posted to alt.windows7.general,alt.comp.os.windows-10
T
external usenet poster
 
Posts: 4,600
Default Tip: blowing out fans

On 11/11/19 5:20 PM, Rene Lamontagne wrote:
On 2019-11-11 7:00 p.m., T wrote:
On 11/11/19 3:15 PM, Rene Lamontagne wrote:
On 2019-11-11 4:41 p.m., VanguardLH wrote:
T wrote:

Tip: If your fans are noisy, blowing them out won't help
things.Â* It is time to replace them.

Not wholly correct.Â* If the fans are dusty, especially due to the caked
on dust due to impact, and because the air is not filtered, the fan can
get out of balance with dust and grime.Â* This isn't dust floating and
settling due to gravity.Â* It's dust slamming into fan blades, and dust
is not clean.Â* It will stick.

Even a new fan will vibrate if it is unbalanced.Â* After blowing out
with
blades/hub fixed, use an ear swab to scrub the blades on front and back
to dislodge the caked on dust.Â* Then blow out again.Â* Blow, scrub, blow
again.

I don't remember hearing of anyone using an air compressor to dust
out a
computer.Â* They sell compressed air cans for that.


I have with precautions.

1: Turn down pressure regulator to about 20 PSI
2: Hold the blow gun at a fair good distance from the computer
3: lock down all fans from turning
4: do this Outside, not in the house or shop
5: Use common sense and good judgement

Rene


Okay, I can't resist asking.Â* Do you play with the blow gun
afterwards: spray off the bench, the floor, the cat, the
wife?Â* Spraying the wife can be dangerous.Â* The cat will
just condescend about the quality of the hired help.

:-)


NO, NO, NO, Never ever play with a blow gun!!!!!!!!!!

Blowing air from a nozzle can penetrate the skin and cause an air
embolism bubble in your veins which will go to your heart and kill you
as surely as a gun, I have known it to happen to a mechanic here in
Winnipeg some years back.

Rene


Yikes!!!!

How about the cat?



  #12  
Old November 12th 19, 03:07 AM posted to alt.windows7.general,alt.comp.os.windows-10
Paul in Houston TX[_2_]
external usenet poster
 
Posts: 999
Default Tip: blowing out fans

T wrote:
Hi All,

Tip: If your fans are noisy, blowing them out won't help
things. It is time to replace them.

If your fan is clogged, DO NOT USE a shop air gun
to blow it out! Use a can of compressed air
that states it is for electronic equipment and
capture the fan blades so they do not rotate
when you hit them with air. Shop air guns
have oils and other stuff yo do not want all over
your circuit boards and their air flows can cause
static electricity build ups.

Fans, when ran backwards with external air, become
generators and send current back down their wires,
which can damage your motherboards. And certainly
damage any PWM circuitry on the fan. So do not
let the blades spin when blowing them out. Yes,
it is fun to watch them whirl -- don't do it anyway.
-T


I have always used my air compressor on my home computers.
Pinpoint nozzle, 30 psi.
I am adverse to the store bought commercial compressed gaseous chemicals
for the masses stuff. It's not air, it's di/tri/tetra/penta fluoro
butane ethane HFC-1xx, etc.
And I really don't like the denatonium benzoate or denatonium
saccharide. That stuff stays on the electronics, keyboard, hands, etc.
Gets into everything, eyes, nose, mouth, etc. C6H5 with a CH2Nx added.
If you must use canned duster for portability at a customer's location
then get the industrial HFC-134a variety without bitterant and not the
HFC-152 version.

  #13  
Old November 12th 19, 03:11 AM posted to alt.windows7.general,alt.comp.os.windows-10
Rene Lamontagne
external usenet poster
 
Posts: 2,549
Default Tip: blowing out fans

On 2019-11-11 7:36 p.m., Char Jackson wrote:
On Mon, 11 Nov 2019 19:20:28 -0600, Rene Lamontagne
wrote:

NO, NO, NO, Never ever play with a blow gun!!!!!!!!!!

Blowing air from a nozzle can penetrate the skin and cause an air
embolism bubble in your veins which will go to your heart and kill you


I believe you meant to say lungs, versus heart. It sounds like you're
describing a pulmonary embolism.

as surely as a gun, I have known it to happen to a mechanic here in
Winnipeg some years back.


Agreed, PE's are risky business.


I'm not sure, I thought it went to the right heart then the lungs but I
may be wrong and you are probably right.
Anyway the person who died was fooling around with another chap and they
were playing with air hoses and one got a close up blast of air in his
upper arm which killed him.
So this is just a friendly message about how dangerous this can be.

Rene


Rene

  #14  
Old November 12th 19, 03:18 AM posted to alt.windows7.general,alt.comp.os.windows-10
Rene Lamontagne
external usenet poster
 
Posts: 2,549
Default Tip: blowing out fans

On 2019-11-11 7:59 p.m., T wrote:
On 11/11/19 5:20 PM, Rene Lamontagne wrote:
On 2019-11-11 7:00 p.m., T wrote:
On 11/11/19 3:15 PM, Rene Lamontagne wrote:
On 2019-11-11 4:41 p.m., VanguardLH wrote:
T wrote:

Tip: If your fans are noisy, blowing them out won't help
things.Â* It is time to replace them.

Not wholly correct.Â* If the fans are dusty, especially due to the
caked
on dust due to impact, and because the air is not filtered, the fan
can
get out of balance with dust and grime.Â* This isn't dust floating and
settling due to gravity.Â* It's dust slamming into fan blades, and dust
is not clean.Â* It will stick.

Even a new fan will vibrate if it is unbalanced.Â* After blowing out
with
blades/hub fixed, use an ear swab to scrub the blades on front and
back
to dislodge the caked on dust.Â* Then blow out again.Â* Blow, scrub,
blow
again.

I don't remember hearing of anyone using an air compressor to dust
out a
computer.Â* They sell compressed air cans for that.


I have with precautions.

1: Turn down pressure regulator to about 20 PSI
2: Hold the blow gun at a fair good distance from the computer
3: lock down all fans from turning
4: do this Outside, not in the house or shop
5: Use common sense and good judgement

Rene


Okay, I can't resist asking.Â* Do you play with the blow gun
afterwards: spray off the bench, the floor, the cat, the
wife?Â* Spraying the wife can be dangerous.Â* The cat will
just condescend about the quality of the hired help.

:-)


NO, NO, NO, Never ever play with a blow gun!!!!!!!!!!

Blowing air from a nozzle can penetrate the skin and cause an air
embolism bubble in your veins which will go to your heart and kill you
as surely as a gun, I have known it to happen to a mechanic here in
Winnipeg some years back.

Rene


Yikes!!!!

How about the cat?




I know you were joking so no problems. Just a reminder about air nozzles.
I dunno about the cat never had one since 1952, I'm a dog lover,
Particularly Golden Retrievers. :-)

Rene

  #15  
Old November 12th 19, 04:33 AM posted to alt.windows7.general,alt.comp.os.windows-10
Jonathan N. Little[_2_]
external usenet poster
 
Posts: 1,133
Default Tip: blowing out fans

Paul in Houston TX wrote:
T wrote:
Hi All,

Tip: If your fans are noisy, blowing them out won't help
things.Â* It is time to replace them.

If your fan is clogged, DO NOT USE a shop air gun
to blow it out!Â* Use a can of compressed air
that states it is for electronic equipment and
capture the fan blades so they do not rotate
when you hit them with air.Â* Shop air guns
have oils and other stuff yo do not want all over
your circuit boards and their air flows can cause
static electricityÂ* build ups.

Fans, when ran backwards with external air, become
generators andÂ* send current back down their wires,
which can damage your motherboards.Â* And certainly
damage any PWM circuitry on the fan.Â* So do not
let the blades spin when blowing them out.Â* Yes,
it is fun to watch them whirl -- don't do it anyway.
-T


I have always used my air compressor on my home computers.
Pinpoint nozzle, 30 psi.
I am adverse to the store bought commercial compressed gaseous chemicals
for the masses stuff. It's not air, it's di/tri/tetra/penta fluoro
butane ethane HFC-1xx, etc.
And I really don't like the denatonium benzoate or denatonium
saccharide. That stuff stays on the electronics, keyboard, hands, etc.
Gets into everything, eyes, nose, mouth, etc. C6H5 with a CH2Nx added.
If you must use canned duster for portability at a customer's location
then get the industrial HFC-134a variety without bitterant and not the
HFC-152 version.


Electric leaf blower...

--
Take care,

Jonathan
-------------------
LITTLE WORKS STUDIO
http://www.LittleWorksStudio.com
 




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