Fans could generate electricity and damage motherboard ?

[Skybuck Flying]

Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

Bye,
Skybuck.

 

[Sjouke Burry]

Zero. None.

John

The fan itself might croak, the internally generated voltage might
toast the control IC, but it wont blow the motherboard.

 

[Tom Lake]

Well...the technician probably meant generating static
electricity.

Probably not. An electric motor can act as a generator as well.

Tom Lake

 

[personaobscura]

Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

Bye,
Skybuck.

Clearly, that nitwit must be your older brother. It's got to be a genetic
thing.

Seriously, dude - do you ever think about what you're writing, or do you find
yourself constantly drifting off while your fingers are still working the
keyboard?

 

[Tom Lake]

Yes, yes. Fans are very dangerous. Take them all out of your PC
immediately.

Thank you for that advice! I tried it and now instead of a chilly 70 deg C
my system runs
at a nice, toasty 250 deg C. Much nicer! Plus, I can read by the red glow
of the CPU!

Tom L

 

[Mike Tomlinson]

**** off back into my killfile. *plonk*

 

[wilby]

Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

Bye,
Skybuck.

No one has yet mentioned the fan bearings being driven so fast that they
become damaged. It is easy to destroy a ball bearing with a compressed
air hose, especially if you are cleaning the bearing with a solvent at
the time you over spin it.

Wilby

 

[TVeblen]

No one has yet mentioned the fan bearings being driven so fast that they
become damaged. It is easy to destroy a ball bearing with a compressed
air hose, especially if you are cleaning the bearing with a solvent at
the time you over spin it.

Wilby

Yes, thank Christ no one has mentioned that.

 

[[email protected]]

Skybuck Flying, you have ASPERGERS don't you?

He's said as much. It's DimBulb who won't admit to the obvious.

 

[Don]

Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

Bye,
Skybuck.

Connect a light bulb to the outer edges of the fan with wire to disperse
the energy, but make certain to place the lamp outside of the case, of
course, to disperse the heat. Works for me, although I am not in the
same exact location as you are -- this could make a really big
difference according to my technician who honed his skills in Area 51,
NV. Please post your results.

Thank you.

Don

 

[Arno]

Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

Bye,
Skybuck.

First, the idea is somewhat sound, as the type of motor used in a
fan can indeed serve as generator. However the electronics do not
support this. You can, again in theory, kill a fan this way.

On the more practical side, a brief test with a Papst (quality-)fan
gave me around 0.15V AC without load, so I guess mechanical damage
to the fan is more likely than damaging the mainboard. And pulling
off your arm with the vaccuum slipstream needed to produce
dangerous voltages ;-)

Arno

 

[JW]

Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?!

Very true.

Should motherboards be equiped with
fan-back-surge protectors ?

Not yours.

 

[Man-wai Chang]

Should motherboards be equiped with fan-back-surge protectors ?

How many more surge protectors do we need?

--
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http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa

 

[GMAN]

Hello,

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

Bye,
Skybuck.

Its true that you should not let the fans spin while blowing the motherboard
out using a huge compressor but a small can of compressed air is not going to
harm the system.

The damage likely caused would be more along the lines of ruining the fan due
to high RPM's.

 

[Skybuck Flying]

Hello,

I just saw a dutch technician mention the following possibility of
damaging a motherboard when cleaning the PC of dust and I wonder if there
is any thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

There is a bit of a contradiction in this.

If power is applied to the fan's and they start spinning, would they start
to generate electricity as well ?

Hmmm...

(Instead of being spinned up by a vacuum cleaner...)

Bye,
Skybuck

 

[Rich Grise]

I just saw a dutch technician mention the following possibility of damaging
a motherboard when cleaning the PC of dust and I wonder if there is any
thruth in it, in short the technician writes the following:

"Be carefull not to make the fans spin real fast because then they could
start generating electricity and damage the motherboard ?!"

This is true - I've seen it happen. When I was in the service, I was
a tech and we would take bare muffin fans, loosen the rotors, and spin
them up with shop air, then see how high the fan would fly by inertia.

I was doing that once and the fan arced.

Motors become generators when they're spun; whenever I blow the dust
out of my 'pute, I block the fans from rotating, like with a pen or
something.

How much thruth is in that sentence ?! Should motherboards be equiped with
fan-back-surge protectors ?

I don't know what "thruth" is. ;-) And I've never heard of a
"fan-back-surge protector;" just constrain the fan from spinning.

Cheers!
Rich

 

[Grant]

Do all these fan motors have PMs inside? I haven't ripped one open,
but dangling a screwdriver around the hub of the one I have here, I
see no hint of magnetism. Maybe some are just variable reluctance
things.

Very light magnetised plastic, like fridge magnets, inside the rotating
part that surrounds the wound stator. There's a metal can shorts outside
field, possibly increase magnet field inside.

Variable reluctance hard to control, not your average computer fan

As far as wind from a can or vacuum damaging a circuit, some say it's
due to static electricity. I generally use a brush and vacuum to catch
what's brushed free, never lost a circuit board that way. Mainly to do
with not bumping components with the vacuum cleaner end.

Whizzing a fan with air or vacuum is likely to wreck the bearings?

Grant.

 

[Clifford Heath]

BTW, I used to have a computer running without a case. It worked OK,
although I had to cover it when the dog was inside

You covered your computer with a salivating dog inside it? The mind boggles.

 

[[email protected]]

You are as retarded as Greegor is. Especially since you jumped onto
the
dumbfuck's retarded hay ride. That is actually... HILARIOUS!

The insane often think everything is hilarious. Others think you're sad.
There is help available, though Nymbecile. They're coming to take you away!

 

[wilby]

Know much about the cheap constuction of all the chinese cooling fan
makers, do ya? I doubt you have complete family familiarity. Also,
how
many designs have exposed hubs and shafts? How many of those
are where the user points his air wand? Answer NONE.

Most are, in fact, designed to handle an overspin condition.

One would have to remove the fan and shoot the air deliberately into
the crack between the blade hub and the motor housing. to do the
damage you suggest.

Solvents? You are stupid. Nobody said anything about solvents.

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ιθÏνοντες, κάνει ήδη; Αμφιβάλλω έχετε πλήÏη εξοικείωση οικογένεια. Επίσης,
πως
πολλά σχέδια έχουν εκτεθεί κόμβους και τους άξονες; Πόσες από αυτές
είναι όταν ο χÏήστης σημεία Ïαβδί του αέÏα του; Απάντηση ΚΑÎΕÎΑ.

Οι πεÏισσότεÏοι είναι, στην Ï€Ïαγματικότητα, με σκοπό να χειÏιστεί μια
κατάσταση overspin.

Κάποιος θα Ï€Ïέπει να αφαιÏέσετε τον ανεμιστήÏα και να πυÏοβολοÏν στον
αέÏα σκόπιμα σε
η Ïωγμή Î¼ÎµÏ„Î±Î¾Ï Ï„Î¿Ï… κόμβου λεπίδα και το πεÏίβλημα κινητήÏα. να Ï€Ïάξει το
ζημιά σας Ï€Ïοτείνουμε.

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