Fans could generate electricity and damage motherboard ?

[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

 

[Payala]

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...

Yes, exactly, it is called back-EMF.

 

[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.

 

[oparr]

Hello,

I just saw a dutch technician mention

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

Not the typical 12V brushless fans in a computer. Took only 5 minutes
to debunk.

FAN: Evercool EC8025M12CA, 12V, .11A, 1.32W
Air Pressure: 50PSI applied at point blank range (shop air compressor)
Nozzle diameter: Go figure
RPM: Go figure
Voltage generated CW: 0.2VAC
Voltage generated CCW: 0.18VAC


End of story.

 

[oparr]

It only took me one minute. I spun the fan up with a power supply,
connected a scope across the fan leads, and disconnected the supply.
The fan teminal voltage dropped to zero instantly, before the blades
spun down.

Shorter story.

My IQ/OQ data looks more professional and convincing. Your's resembles
anecdotal "tea and crumpet" material.

 

[Nunya]

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.

Unbelieveable!

SkyBuck (SkyTard) actually asked a reasonable lay person question!

 

[Nunya]

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?

It was a reasonable question for one idiot to ask about what some
other
idiot that claims to be an expert stated.

Someone that replies that way you did, however, can be certain that
nothing you give as advice will ever be regarded as expert in nature
either.

 

[Nunya]

 > 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?

Drifting off implies he had a handle on it in the first place. I
sincerely doubt it.

G²

Charlie stole the handle. That is why we get stupid posts
across the gamut. Just like your replies to his post.
All fit the mold. The only question that remains is where think
you rank and where, in fact, you actually rank.

In the grand scheme of things, you do not rank very high, and
certainly not as high as you think you do.

Or maybe a high rank in stupidity is what defines you.

Sure smells in here, you rank motherfucker.

 

[Nunya]

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

It would be nice if my CPUs were as hardy as a nice set of Alumacoat
headers.
Such is not the case, however.

 

[Nunya]

This was advice for Skybuck. We eagerly await the inevitable

 ~y oodsou>#w4ko  NO CARRIER.

And then silence.

You idiots forget that the folks buy him a new box each time
he trashes the previous. That is, of course, if his lies to the
manufacturers doesn't prompt them to dump cash and
hardware onto his lame, ill character ass.

STOP OPENING YOUR BOX, YOU STUPID LITTLE TWIT.

If our boxes rune for months without maintenance servicing,
why do you always have to have your grubby hands inside
your machines, idiot?!??

Ever stop to think that it is YOU that breaks them?

 

[Nunya]

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

Jeez, what a pussy. I hope you are not the guy I knew in Cincinnati
years ago. How sad that would be. Pretty unlikely tho, Brit twit.
You give the good among you a bad name.

 

[Nunya]

On 9/1/2010 6:13 PM, Skybuck Flying wrote:

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

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.

 

[Nunya]

Skybuck Flying, you have ASPERGERS don't you?

If only we could get rid of retarded little adolescent ditzes
like you, this group would return to normal a slight bit.

I say that the egreegiously offensive greegor has more
than a slight obsession with his inability to assess others
with the disease he seemingly is the only one here to
suffer from. Suffer, boy... Suffer.

What you need is a nice point making beat down,
and to be forced to witness as your PC gets thrown
off a tall cliff, by YOUR hands.

Then, we will not have to worry any longer about your
incessant retarded posts into this group and others,
where you do nothing but point fingers at others.

It is a goddamned shame that your ISP caters to
your ****ing offensive abuse of this forum, boy.

 

[Nunya]

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

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

 

[Nunya]

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

Reminds me of more than one Fred Flinstone episode.

 

[krw]

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.

ΞέÏουν Ï€Î¿Î»Ï Î³Î¹Î± τη φτηνή κατασκευή όλων των κινεζικών ανεμιστήÏα
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.

ΔιαλÏτες; Είστε ηλίθιος. Κανείς δεν είπε τίποτα για τους διαλÏτες.

 

[Nunya]

On Sep 4, 10:14 am, wilby

SPEAK ENGLISH, you goddamned retard!

Go to some other group and shift some other thread, ****head.